CN110828987A - An antenna unit and electronic equipment - Google Patents

Abstract

Embodiments of the present invention provide an antenna unit and an electronic device, which relate to the field of communication technologies, so as to solve the problem that a millimeter-wave antenna of an existing electronic device covers less frequency bands. The antenna unit includes: a metal groove, M feed parts arranged at the bottom of the metal groove, M feed arm units and a first insulator arranged in the metal groove, and a target radiator carried by the first insulator; each The feed arm unit includes a first feed arm, a second feed arm electrically connected to the first end of the first feed arm, a third feed arm electrically connected to the second feed arm, each feed arm The second end of the first feeding arm in the unit is electrically connected to different feeding parts of the M feeding parts; the third feeding arm in each feeding arm unit is coupled with the target radiator, or each feeding The first feeding arm, the second feeding arm and the third feeding arm in the electric arm unit are all coupled with the target radiator, and M is an integer greater than 1. The antenna unit is used in electronic equipment.

Description

An antenna unit and electronic equipment

technical field

Embodiments of the present invention relate to the field of communication technologies, and in particular, to an antenna unit and an electronic device.

Background technique

With the development of the fifth-generation mobile communication (5th-Generation, 5G) system and the wide application of electronic devices, millimeter-wave antennas are gradually applied in various electronic devices to meet the increasing usage demands of users.

At present, millimeter-wave antennas in electronic devices are mainly implemented through an antenna in package (antenna in package, AiP) technology. For example, as shown in FIG. 1, an array antenna 11, a radio frequency integrated circuit (RFIC) 12, a power management integrated circuit (PMIC) 13 and a The connector 14 is packaged into a module 10, which may be referred to as a millimeter wave antenna module. Wherein, the antenna in the above array antenna may be a patch antenna, a Yagi-Uda antenna, or a dipole antenna or the like.

However, since the antennas in the above-mentioned array antennas are usually narrow-band antennas (such as the patch antennas listed above), the coverage frequency of each antenna is limited, but there are usually more millimeter-wave frequency bands planned in the 5G system, such as 28GHz. Therefore, traditional millimeter-wave antenna modules may not be able to cover the mainstream millimeter-wave frequency bands planned in the 5G system, so This results in poor antenna performance of electronic devices.

SUMMARY OF THE INVENTION

Embodiments of the present invention provide an antenna unit and an electronic device to solve the problem that a millimeter-wave antenna of an existing electronic device covers less frequency bands, resulting in poor antenna performance of the electronic device.

In order to solve the above technical problems, this application is implemented as follows:

In a first aspect, an embodiment of the present invention provides an antenna unit, the antenna unit includes: a metal groove, M feed portions disposed at the bottom of the metal groove, and M feed arm units disposed in the metal groove and a first insulator, and a target radiator carried by the first insulator; wherein each feed arm unit includes a first feed arm, a second feed arm electrically connected to the first end of the first feed arm, and a third feeding arm electrically connected to the second feeding arm, the second end of the first feeding arm in each feeding arm unit is electrically connected to different feeding parts of the M feeding parts; each The third feeding arm in the feeding arm unit is coupled with the target radiator, or the first feeding arm, the second feeding arm and the third feeding arm in each feeding arm unit are all coupled with the target radiator, M is an integer greater than 1.

In a second aspect, an embodiment of the present invention provides an electronic device, where the electronic device includes the antenna unit in the foregoing first aspect.

In this embodiment of the present invention, the antenna unit may include: a metal groove, M feed parts disposed at the bottom of the metal groove, M feed arm units and a first insulator disposed in the metal groove, and a first a target radiator carried by an insulator; wherein each feed arm unit includes a first feed arm, a second feed arm electrically connected to the first end of the first feed arm, and electrically connected to the second feed arm the third feeding arm, the second end of the first feeding arm in each feeding arm unit is electrically connected to different feeding parts in the M feeding parts; the third feeding arm in each feeding arm unit The electric arm is coupled with the target radiator, or the first feeding arm, the second feeding arm and the third feeding arm in each feeding arm unit are all coupled with the target radiator, and M is an integer greater than 1. With this solution, since the first end of the first feed arm in the feed arm unit is electrically connected to the second feed arm, the second feed arm is electrically connected to the third feed arm, and the first feed arm, Both the second feeding arm and the third feeding arm can be coupled with the target radiator. Therefore, when the feeding arm unit receives an AC signal, the target radiator can generate an induced AC signal by coupling with the target radiator. , and the current path of the induced current generated on the target radiator is short, so the target radiator can radiate high-frequency electromagnetic waves outward. Moreover, since the third feeding arm in the feeding arm unit can be coupled with the target radiator, when the feeding part transmits the AC signal to one feeding arm unit, the third feeding arm in the feeding arm unit It can be coupled with the target radiator, and both the target radiator and the third feed arm can generate induced current, and after the target radiator generates the induced current, the target radiator can be coupled with the third feeder in another feed arm unit. Arm coupling, the other feeding arm unit can generate induced current, so the current paths through the feeding arm unit and the target radiator can have multiple paths (for example, the current path formed on one feeding arm unit, one feeding arm The current path from the unit to the target radiator, and then to another feeder arm unit, etc.), and these current paths are relatively long, so that the feeder arm unit and the target radiator can radiate low-frequency electromagnetic waves outward. In this way, the antenna unit can cover multiple frequency bands of the millimeter wave (for example, the high frequency frequency band n260 and the low frequency frequency band n257), so that the bandwidth covered by the antenna unit can be increased.

Description of drawings

FIG. 1 is a schematic structural diagram of a traditional millimeter-wave packaged antenna according to an embodiment of the present invention;

FIG. 2 is one of exploded views of an antenna unit provided by an embodiment of the present invention;

FIG. 3 is a reflection coefficient diagram of an antenna unit provided by an embodiment of the present invention;

4 is a cross-sectional view of an antenna unit provided by an embodiment of the present invention;

5 is a top view of an antenna unit provided by an embodiment of the present invention;

FIG. 6 is the second exploded view of the antenna unit provided by the embodiment of the present invention;

7 is one of the schematic diagrams of the hardware structure of an electronic device provided by an embodiment of the present invention;

8 is a second schematic diagram of a hardware structure of an electronic device provided by an embodiment of the present invention;

FIG. 9 is one of radiation patterns of an antenna unit provided by an embodiment of the present invention;

FIG. 10 is the second radiation pattern of the antenna unit provided by the embodiment of the present invention;

FIG. 11 is a bottom view of an electronic device provided by an embodiment of the present invention.

Description of reference numerals: 10—millimeter wave antenna module; 11—array antenna with operating wavelength of millimeter wave; 12—RFIC; 13—PMIC; 14—connector; 20—antenna unit; 201—metal groove; 202— 203—the first insulator; 204—the target radiator; 205—the first feed arm; 205a—the first end of the first feed arm; 205b—the second end of the first feed arm; 206— 207—third feeder arm; 209—second insulator; 210—through hole; 211—third insulator; L1—first axis of symmetry; L2—second axis of symmetry; 30—5G millimeter wave Signal; 4—electronic equipment; 40—shell; 41—first metal frame; 42—second metal frame; 43—third metal frame; 44—fourth metal frame; 45—floor; 46—first antenna; 47—The first groove.

It should be noted that, in the embodiment of the present invention, the coordinate axes in the coordinate system shown in the drawings are orthogonal to each other.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

The term "and/or" in this paper is an association relationship that describes an associated object, indicating that there can be three kinds of relationships, for example, A and/or B, which can mean that A exists alone, A and B exist at the same time, and B exists alone these three situations. The symbol "/" in this document indicates the relationship in which the associated object is or, for example, A/B indicates A or B.

The terms "first" and "second" and the like in the description and claims of the present invention are used to distinguish different objects, rather than to describe a specific order of the objects. For example, the first feed arm, the second feed arm, etc. are used to distinguish different feed arms, rather than to describe a specific order of the feed arms.

In the embodiments of the present invention, words such as "exemplary" or "for example" are used to mean serving as an example, illustration or illustration. Any embodiments or designs described as "exemplary" or "such as" in the embodiments of the present invention should not be construed as preferred or advantageous over other embodiments or designs. Rather, the use of words such as "exemplary" or "such as" is intended to present the related concepts in a specific manner.

In the description of the embodiments of the present invention, unless otherwise specified, the meaning of "plurality" refers to two or more than two, for example, a plurality of antenna units refers to two or more than two antenna units and the like.

Some terms/nouns involved in the embodiments of the present invention are explained below.

Coupling: refers to the close cooperation and mutual influence between the input and output of two or more circuit elements or electrical networks, and can transmit energy from one side to the other through interaction.

The "coupling" in this embodiment of the present invention can be used to indicate that the components that are coupled (for example, the M feed arms and the metal grooves in the embodiment) can be coupled when the antenna unit works; when the antenna unit is not In operation, these components are insulated from each other.

AC signal: refers to the signal that the direction of the current will change.

Multiple-input multiple-output (multiple-input multiple-output, MIMO) technology: refers to a technology that uses multiple antennas to send or receive signals at the transmitting end (ie, the transmitting end and the receiving end) to improve communication quality. In this technology, signals can be sent or received through multiple antennas on the transmission side.

Relative permittivity: A physical parameter used to characterize the dielectric or polarization properties of a dielectric material.

Floor: refers to the part of electronic equipment that can be used as a virtual ground. For example, a printed circuit board (printed circuit board, PCB) in an electronic device, a metal middle frame, or a display screen of an electronic device, etc.

Embodiments of the present invention provide an antenna unit and an electronic device. The antenna unit may include: a metal groove, M feeders disposed at the bottom of the metal groove, M feeder arm units disposed in the metal groove, and a first insulator, and a target radiator carried by the first insulator; wherein each feed arm unit includes a first feed arm, a second feed arm electrically connected to the first end of the first feed arm, and The second feeding arm is electrically connected to the third feeding arm, and the second end of the first feeding arm in each feeding arm unit is electrically connected to different feeding parts of the M feeding parts; each feeding The third feeding arm in the arm unit is coupled with the target radiator, or the first feeding arm, the second feeding arm and the third feeding arm in each feeding arm unit are coupled with the target radiator, M is Integer greater than 1. With this solution, since the first end of the first feed arm in the feed arm unit is electrically connected to the second feed arm, the second feed arm is electrically connected to the third feed arm, and the first feed arm, Both the second feeding arm and the third feeding arm can be coupled with the target radiator. Therefore, when the feeding arm unit receives an AC signal, the target radiator can generate an induced AC signal by coupling with the target radiator. , and the current path of the induced current generated on the target radiator is short, so the target radiator can radiate high-frequency electromagnetic waves outward. Moreover, since the third feeding arm in the feeding arm unit can be coupled with the target radiator, when the feeding part transmits the AC signal to one feeding arm unit, the third feeding arm in the feeding arm unit It can be coupled with the target radiator, and both the target radiator and the third feed arm can generate induced current, and after the target radiator generates the induced current, the target radiator can be coupled with the third feeder in another feed arm unit. Arm coupling, the other feeding arm unit can generate induced current, so the current paths through the feeding arm unit and the target radiator can have multiple paths (for example, the current path formed on one feeding arm unit, one feeding arm The current path from the unit to the target radiator, and then to another feeder arm unit, etc.), and these current paths are relatively long, so that the feeder arm unit and the target radiator can radiate low-frequency electromagnetic waves outward. In this way, the antenna unit can cover multiple frequency bands of the millimeter wave (for example, the high frequency frequency band n260 and the low frequency frequency band n257), so that the bandwidth covered by the antenna unit can be increased.

The antenna unit provided in the embodiment of the present invention may be applied to electronic devices, and may also be applied to other devices that need to use the antenna unit, which may be determined according to actual usage requirements, and is not limited by the embodiment of the present invention. The antenna unit provided by the embodiment of the present invention is exemplarily described below by taking the application of the antenna unit to an electronic device as an example.

The antenna unit provided by the embodiment of the present invention is exemplarily described below with reference to the accompanying drawings.

As shown in FIG. 2 , the antenna unit 20 may include a metal groove 201 , M feed portions 202 disposed at the bottom of the metal groove 201 , M feed arm units and a first insulator 203 disposed in the metal groove 201 . , and the target radiator 204 carried by the first insulator.

Wherein, each of the above-mentioned M feeder arm units (hereinafter referred to as each feeder arm unit) includes a first feeder arm 205, a The second feeding arm 206, and the third feeding arm 207 electrically connected to the second feeding arm 206, the second end 205b of the first feeding arm in each feeding arm unit is connected to the above-mentioned M feeding parts The different feeding parts in each feeding arm unit are electrically connected; the third feeding arm 207 in each feeding arm unit is coupled with the target radiator 204, or the first feeding arm 205, the second feeding arm 205 in each feeding arm unit, the second feeding arm Both the arm 206 and the third feeding arm 207 are coupled to the target radiator 204, and M is an integer greater than 1.

It can be understood that the first end of the first feeding arm in the feeding arm unit may be the feeding point of the antenna unit provided in the embodiment of the present invention.

It should be noted that, in this embodiment of the present invention, in order to illustrate the structure of the antenna unit more clearly, FIG. 2 is an exploded view of the antenna unit, that is, the components of the antenna unit are all separated. In actual implementation, the above-mentioned M feeders, the first feed arm, the second feed arm and the third feed arm, the first insulator and the target radiator in each feed arm unit are all arranged in the metal recess. In the slot, that is, the metal groove, the M feeding parts, the M feeding arm units, the first insulator and the target radiator form a whole to form an antenna unit provided by the embodiment of the present invention.

In addition, in FIG. 2 , the first end 205a of the first feeding arm and the second feeding arm 206 are not shown in an electrically connected state, and the second end 205b of the first feeding arm and the feeding part 202 are not electrically connected either. status is shown. In actual implementation, the first end 205a of the first feed arm may be electrically connected to the second feed arm 206, and the second end 205b of the first feed arm may be electrically connected to the feed portion 202.

Optionally, in this embodiment of the present invention, the first end of the first feeding arm in each of the foregoing feeding arm units may be electrically connected to the first end of the second feeding arm, and the second feeding arm of the second feeding arm may be electrically connected. The end may be electrically connected to the first end of the third feed arm.

Optionally, in this embodiment of the present invention, the first feeding arm, the second feeding arm, and the third feeding arm in one feeding arm unit (any one of the above-mentioned M feeding arm units) may be integrated Formed or assembled. Specifically, it can be determined according to actual usage requirements, which is not limited in the embodiment of the present invention.

It should be noted that, the examples in the embodiments of the present invention are all exemplified by an example in which the feeder arm unit is assembled. The implementation manner in which the feeder arm unit is integrally formed is similar to the implementation manner in which the feeder arm unit is assembled. In order to avoid repetition, details are not described in this embodiment of the present invention.

Optionally, in this embodiment of the present invention, the structures of the first feeding arm, the second feeding arm, and the third feeding arm in the feeding arm unit may be completely the same, may be partially the same, or may be completely different. Specifically, it can be determined according to actual usage requirements, which is not limited in the embodiment of the present invention.

Exemplarily, the first feeding arm and the third feeding arm in the feeding arm unit may be metal sheets, and the second feeding arm may be a metal column; or, the first feeding arm in the feeding arm unit, Both the second feeding arm and the third feeding arm may be metal sheets.

In order to more clearly describe the antenna unit provided by the embodiment of the present invention and its working principle, an antenna unit is taken as an example to illustrate the working principle of the antenna unit provided by the embodiment of the present invention for sending and receiving signals.

When the electronic device sends a 5G millimeter wave signal, the signal source in the electronic device will send out an AC signal, and the AC signal can be transmitted to the feeding arm unit through the feeding part. Then, after the feeding arm unit receives the AC signal, the first feeding arm, the second feeding arm and the third feeding arm in the feeding arm unit can be coupled with the target radiator, so that the target radiator induces induction and the current path of the induced current on the target radiator is short, so the target radiator can radiate high-frequency electromagnetic waves to the outside; and a current flows through the third feeder arm in the feeder arm unit In the case of , the third feeder arm can be coupled with the target radiator, so that the target radiator and the third feeder arm can generate an induced current. After the target radiator generates an induced current, the target radiator can be coupled with another feeder arm. The third feeding arm in the unit is coupled, so that the other feeding arm unit can generate an induced current, so that the paths of the current passing through the feeding arm unit and the target radiator are both long (for example, the feeding arm unit (specifically can is the current path formed on the first feeding arm, the second feeding arm and the third feeding arm), the current path from one feeding arm unit to the target radiator, and then to another feeding arm unit, etc.), so The feeding arm unit and the target radiator can radiate various low-frequency electromagnetic waves to the outside. Therefore, the electronic device can transmit signals of different frequencies through the antenna unit provided in the embodiment of the present invention.

For another example, in this embodiment of the present invention, when the electronic device receives a 5G millimeter wave signal, the electromagnetic wave in the space where the electronic device is located can excite the target radiator, so that the target radiator can generate an induced current (that is, an induced AC signal). ). After the target radiator generates the induced AC signal, the target radiator can be coupled with the third feed arm in the feed arm unit, or with the first feed arm, the second feed arm and the first feed arm in the feed arm unit The three feed arms are coupled so that the feed arm unit can generate an induced AC signal. In this way, after the feeder arm unit generates the AC signal, the feeder arm unit can input the AC signal to the receiver in the electronic device through the power feeder, so that the electronic device can receive the 5G millimeter wave signal sent by other devices. That is, the electronic device can receive signals through the antenna unit provided in the embodiment of the present invention.

The performance of the antenna unit provided by the embodiment of the present invention is exemplarily described below with reference to FIG. 3 .

Exemplarily, as shown in FIG. 3 , when the antenna unit provided by the embodiment of the present invention works, a reflection coefficient diagram of the antenna unit is shown. When the return loss is less than -6dB (decibel), the frequency range covered by the antenna unit can be 25GHz-41.4GHz. The frequency range can include multiple millimeter wave bands (such as n257, n260 and n261), when the return loss is less than -10dB In decibels, the frequency range covered by the antenna unit may be 26GHz-29.5GHz and 35.544GHz-40.2GHz, and the frequency range may also include multiple millimeter-wave frequency bands (for example, n257, n260, and n261), as provided in this embodiment of the invention The antenna unit can cover most 5G mmWave frequency bands, which can improve the antenna performance of electronic devices.

It should be noted that, in the embodiment of the present invention, when the return loss of an antenna unit is less than -6dB, the antenna unit can meet the actual use requirements; when the return loss of an antenna unit is less than -10dB, the antenna unit's return loss is less than -10dB. Work performance is better. That is, the antenna unit provided by the embodiment of the present invention can ensure better working performance on the basis of meeting actual use requirements.

In addition, the point a, point b, point c and point d in the above Figure 3 are used to mark the value of the return loss. It can be seen from Figure 3 that the value of the return loss marked by point a is -6.087dB, and the value marked by point b is -6.087dB. The value of return loss is -6.1037dB, the value of return loss marked by point c is -10.001dB, and the value of return loss marked by point d is -10.046dB.

An embodiment of the present invention provides an antenna unit, since the first end of the first feed arm in the feed arm unit is electrically connected to the second feed arm, the second feed arm is electrically connected to the third feed arm, and The first feeding arm, the second feeding arm and the third feeding arm can all be coupled with the target radiator, so when the feeding arm unit receives an AC signal, the target radiator can be made to radiate by coupling with the target radiator The radiator generates an induced AC signal, and the current path of the induced current generated on the target radiator is short, so the target radiator can radiate high-frequency electromagnetic waves outward. Moreover, since the third feeding arm in the feeding arm unit can be coupled with the target radiator, when the feeding part transmits the AC signal to one feeding arm unit, the third feeding arm in the feeding arm unit can be coupled with a target radiator, the target radiator can generate an induced current, and after the target radiator generates an induced current, the target radiator can be coupled with a third feed arm in another feed arm unit, which feeds The arm unit can generate induced current, so that the current paths through the feeder arm unit and the target radiator can have multiple paths (for example, a current path formed on a feeder arm unit, a feeder arm unit to the target radiator, and then to the target radiator). The current path of another feeding arm unit, etc.), and these current paths are relatively long, so that the feeding arm unit and the target radiator can radiate low-frequency electromagnetic waves outward. In this way, the antenna unit can cover multiple frequency bands of the millimeter wave (for example, the high frequency frequency band n260 and the low frequency frequency band n257), so that the bandwidth covered by the antenna unit can be increased.

Optionally, in the embodiment of the present invention, the above-mentioned metal groove may be a rectangular groove or a circular groove.

Of course, in actual implementation, the above-mentioned metal groove may also be a metal groove of any other possible shape, which may be determined according to actual use requirements, and is not limited in the embodiment of the present invention.

It should be noted that, in the embodiment of the present invention, the shape of the metal groove may be used to represent the shape of the opening of the metal groove. That is, when the metal groove is a rectangular groove, the shape of the opening of the metal groove can be rectangular; when the metal groove is a circular groove, the shape of the opening of the metal groove can be circular.

In this embodiment of the present invention, since different shapes of metal grooves may have different performances on the antenna unit, a groove of an appropriate shape may be selected as the metal groove in the antenna unit provided by the embodiment of the present invention according to the actual use requirements of the antenna unit. slot, so that the antenna unit can work in the 5G millimeter wave frequency band.

Further, since the shape of the antenna unit composed of regular-shaped metal grooves is relatively stable, the present invention can be implemented by setting the metal grooves as regular-shaped grooves (such as rectangular grooves or circular grooves, etc.). The performance of the antenna unit provided in the example is relatively stable, so that the performance of the antenna unit can be improved.

Optionally, in the embodiment of the present invention, the above-mentioned M power feeding parts may penetrate through the bottom of the metal groove and be insulated from the metal groove.

Specifically, in actual implementation, as shown in FIG. 2 , the first end of the feeder can be electrically connected to the second end 205b of the first feeder arm in the feeder arm unit, and the second end of the feeder (not shown) 2) may be electrically connected to a signal source in the electronic device (eg, a 5G signal source in the electronic device). In this way, the current emitted by the signal source in the electronic device can be transmitted to the first feeding arm, the second feeding arm and the third feeding arm in the feeding arm unit through the feeding part, so that the The current of the signal source is transmitted to the antenna unit, so that the antenna unit can work normally.

Optionally, in this embodiment of the present invention, the first feeding arm and the third feeding arm in each feeding arm unit may be parallel to the surface where the opening of the metal groove is located, and the third feeding arm in each feeding arm unit may be parallel to the surface where the opening of the metal groove is located. The second feed arm may be perpendicular to the first feed arm and the third feed arm.

Exemplarily, as shown in FIG. 4 , it is a cross-sectional view of an antenna unit according to an embodiment of the present invention. It can be seen from FIG. 4 that the first feeding arm 205 and the third feeding arm 207 in the feeding arm unit can be parallel to the surface where the opening of the metal groove 201 is located, and the second feeding arm 206 in the feeding arm unit can be parallel to the surface where the opening of the metal groove 201 is located. The surface where the opening of the metal groove 201 is located is vertical, that is, the second feeding arm 206 in the feeding arm unit is vertical to the first feeding arm 205 and the third feeding arm 207 .

Of course, in actual implementation, the positional relationship among the first feeding arm, the second feeding arm and the third feeding arm in the feeding arm unit may also be any other possible positional relationship. For example, the included angle between the first and third feeding arms in the feeding arm unit and the surface where the opening of the metal groove is located is less than 90 degrees. The feeding arm and the third feeding arm are perpendicular; or, the first feeding arm and the third feeding arm in the feeding arm unit are both parallel to the surface where the opening of the metal groove is located, and the second feeding arm in the feeding arm unit The included angle with the first feed arm is less than 90 degrees, the included angle between the second feed arm and the third feed arm in the feed arm unit is greater than 90 degrees, and so on. Specifically, it can be determined according to actual usage requirements, which is not limited in the embodiment of the present invention.

In the embodiment of the present invention, due to the different structures of the feeder arm units, that is, the positional relationship between the first feeder arm, the second feeder arm and the third feeder arm in the feeder arm unit is different, the working performance of the antenna unit may be different , therefore, the positional relationship of the first feeding arm, the second feeding arm, and the third feeding arm in the feeding arm unit can be set according to the actual use requirements of the antenna unit, so that the antenna unit provided by the embodiment of the present invention can Works in the 5G millimeter wave band.

In addition, since the first feeding arm and the third feeding arm in the feeding arm unit are perpendicular to the second feeding arm, the current path on the feeding arm unit can be increased, and thus the antenna unit provided by the embodiment of the present invention can be enlarged Covered frequency band.

Optionally, in this embodiment of the present invention, the third feeding arm in each of the foregoing feeding arm units may be located on the same plane as the target radiator.

Of course, in actual implementation, the positional relationship between the third feeder arm in the feeder arm unit and the target radiator may also be any other possible positional relationship, which may be determined according to actual use requirements, and is not set in this embodiment of the present invention. limited.

In this embodiment of the present invention, since the third feed arm in the feed arm unit can be coupled with the target radiator, when the third feed arm and the target radiator are located on the same plane, a third feed arm can be added The coupling area between the third feeding arm and the target radiator can be reduced, and the distance between the first feeding arm and the target radiator can be reduced, so that the coupling amount between the third feeding arm and the target radiator can be increased, thereby improving the The working performance of the antenna unit provided by the embodiment of the present invention.

Optionally, in this embodiment of the present invention, the above-mentioned target radiator may be a polygonal radiator or a circular radiator.

Optionally, in this embodiment of the present invention, the above-mentioned polygonal radiator may be any possible polygonal radiator such as a rectangular radiator, a hexagonal radiator, and an octagonal radiator. Specifically, it can be determined according to actual usage requirements, which is not limited in the embodiment of the present invention.

It should be noted that, in the embodiment of the present invention, the target radiator is only illustratively described by taking the target radiator as a polygonal radiator or a circular radiator as an example, which does not impose any limitation on the present application. In actual implementation, the target radiator may also be any other possible radiator, which may be specifically determined according to actual use requirements, which is not limited in the embodiment of the present invention.

Optionally, in this embodiment of the present invention, the projection of the target radiator on the first plane may intersect the first feeding arm in each of the foregoing feeding arm units.

Wherein, the above-mentioned first plane may be the plane where the first feeding arm in each of the above-mentioned feeding arm units is located.

It can be understood that, in this embodiment of the present invention, the first feeding arm in each of the foregoing feeding arm units may be located on the same plane.

In this embodiment of the present invention, under the condition that the projection of the target radiator on the above-mentioned first plane intersects the first feeding arm in each feeding arm unit, the first feeding arm in each feeding arm unit The arms can satisfy the coupling connection relationship with the target radiator, that is, each feeding arm unit can satisfy the coupling connection relationship with the target radiator (that is, when the antenna unit is working, each feeding arm unit (specifically can The first feeding arm, the second feeding arm and the third feeding arm in the first feeding arm unit) are all coupled with the target radiator; when the antenna unit is not working, each feeding arm unit is can be insulated from the target radiator).

Optionally, in this embodiment of the present invention, as shown in FIG. 4 , the surface of the target radiator 204 and the surface of the third feeding arm 207 in each feeding arm unit are aligned with the surface where the opening of the metal groove 201 is located. flat.

Of course, in actual implementation, the third feeding arm and the target radiator in the above-mentioned feeding arm unit may also be located at other positions in the metal groove, for example, both the third feeding arm and the target radiator may be lower than the metal groove The surface on which the opening is located may be specifically determined according to actual use requirements, which is not limited in the embodiment of the present invention.

In this embodiment of the present invention, since the positions of the third feeding arm and the target radiator in the metal groove are different, the performance of the antenna unit may also be different. Therefore, the third feeding arm and the target radiator can be set in The position in the metal groove can make the design of the antenna unit more flexible.

Further, since the surface of the third feeding arm and the surface of the target radiator are both flush with the surface where the opening of the metal groove is located, the third feeding arm and the target radiator can radiate electromagnetic waves directly outward, which can reduce the number of metal grooves. The influence of other internal components on the third feeding arm and the target radiator can be improved, so that the radiation performance of the antenna unit provided by the embodiment of the present invention can be improved.

Optionally, in this embodiment of the present invention, the distance between the first end of the first feeding arm in each of the above feeding arm units and the center of the metal groove may be greater than the distance between the second end of the first feeding arm and the center of the metal groove. The distance between the centers of the metal grooves.

It can be understood that the distribution direction of the above-mentioned first feeding arms in the metal groove may be along the direction from the center of the metal groove to the side wall of the metal groove.

It should be noted that, in the embodiment of the present invention, the distance between the first end of the first feed arm and the center of the metal groove is greater than the distance between the second end of the first feed arm and the center of the metal groove as Examples are provided for illustrative purposes, but do not limit the present application in any way. In actual implementation, the above-mentioned first feeding arm may also be disposed in the metal groove in any possible distribution manner, which may be determined according to actual use requirements, which is not limited in the embodiment of the present invention.

Optionally, in this embodiment of the present invention, the above-mentioned M feeder arm units may be four feeder arm units (that is, M=4), and the four feeder arm units may form two feeder arm unit groups, each Each feeder arm unit group may include two feeder arm units arranged symmetrically, and the symmetry axis of one feeder arm unit group is orthogonal to the symmetry axis of the other feeder arm unit group.

In this embodiment of the present invention, since the antenna unit may include two feeder arm unit groups, and each feeder arm unit group includes two feeder arm units, the electronic device may be fed through the two feeder arm units in the antenna unit The arm unit group transmits or receives signals respectively, that is, the MIMO technology can be implemented by the antenna unit provided in the embodiment of the present invention, so that the communication capacity and communication rate of the antenna unit can be improved, that is, the data transmission rate of the antenna unit can be improved.

It should be noted that, in order to facilitate description and understanding, in the following embodiments, the above two feeder arm unit groups are divided into a first feeder arm unit group and a second feeder arm unit group. Wherein, the first feeder arm unit group and the second feeder arm unit group respectively include two symmetrically arranged feeder arm units, and the symmetry axis of the first feeder arm unit group is the same as the axis of the second feeder arm unit group. The axes of symmetry are orthogonal.

Optionally, in this embodiment of the present invention, the first feeder arm unit group and the second feeder arm unit group may be two feeder arm unit groups with different polarizations. Specifically, the first feeding arm unit group may be a first polarized feeding arm unit group, and the second feeding arm unit group may be a second polarized feeding arm unit group.

Exemplarily, as shown in FIG. 5 , it is a top view of an antenna unit provided in an embodiment of the present invention in the reverse direction of the Z-axis. The first feed arm unit group may include a first feed arm unit 2080 and a second feed arm unit 2081, and the second feed arm unit group may include a third feed arm unit 2082 and a fourth feed arm unit 2083. The first feeding arm unit group formed by the first feeding arm unit 2080 and the second feeding arm unit 2081 may be a first polarized feeding arm unit group (for example, a horizontally polarized feeding arm unit group) ; The second feeding arm unit group formed by the third feeding arm unit 2082 and the fourth feeding arm unit 2083 may be a second polarized feeding arm unit group (for example, a vertically polarized feeding arm unit group).

It should be noted that, since FIG. 5 is a top view of the antenna unit provided in the embodiment of the present invention in the reverse direction of the Z-axis, the coordinate system in FIG. 5 only illustrates the X-axis and the Y-axis.

Optionally, in this embodiment of the present invention, the first polarization and the second polarization may be polarizations in different directions.

Exemplarily, the first polarization may be +45° polarization or horizontal polarization; the second polarization may be −45° polarization or vertical polarization.

Of course, in actual implementation, the polarization direction of the first polarization and the polarization direction of the second polarization may also be any other possible polarization directions. Specifically, it can be determined according to actual usage requirements, which is not limited in the embodiment of the present invention.

In this embodiment of the present invention, since the first feed arm unit group and the second feed arm unit group may be feed arm unit groups with two different polarizations (the first polarization and the second polarization), therefore The antenna unit provided by the embodiment of the present invention can be formed into a dual-polarized antenna unit, so that the wireless connection capability of the antenna unit can be improved, thereby reducing the probability of disconnection of the communication of the antenna unit, that is, the communication capability of the antenna unit can be improved. .

Optionally, in this embodiment of the present invention, when one feeder arm unit in the first feeder arm unit group is in the working state, another feeder arm unit in the first feeder arm unit group may also be in the working state. . Correspondingly, when one feeding arm unit in the second feeding arm unit group is in the working state, the other feeding arm unit in the second feeding arm unit group may also be in the working state. That is, the feeder arm units in the same feeder arm unit group can work simultaneously.

Optionally, in this embodiment of the present invention, when the feeder arm units in the first feeder arm unit group are in the working state, the feeder arm units in the second feeder arm unit group may be in the working state, or may not be in the working state. in working condition. Specifically, it can be determined according to actual usage requirements, which is not limited in the embodiment of the present invention.

Optionally, in this embodiment of the present invention, the cross section of the opening of the metal groove may be a rectangle, the above-mentioned M feeders may be four feeders, and two of the four feeders may be located in the metal. On one axis of symmetry of the groove, the other two feeding parts of the four feeding parts may be located on the other axis of symmetry of the metal groove.

Optionally, in this embodiment of the present invention, the two feeding parts electrically connected to the first feeding arm in the first feeding arm unit and the first feeding arm in the second feeding arm unit may be located in the metal On a symmetry axis of the groove, the two feeding parts electrically connected to the first feeding arm in the third feeding arm unit and the first feeding arm in the fourth feeding arm unit may be located in the metal groove on the other axis of symmetry.

Exemplarily, as shown in FIG. 5 , the feeding part electrically connected to the first feeding arm (specifically, the second end of the first feeding arm) in the first feeding arm unit 2080 and the second feeding arm The feeding part to which the first feeding arm in the electric arm unit 2081 is electrically connected may be located on the first symmetry axis L1 of the metal groove, and the feeding part that is electrically connected to the first feeding arm in the third feeding arm unit 2082 The feeding portion and the feeding portion electrically connected to the first end of the first feeding arm in the fourth feeding arm unit 2083 may be located on the second symmetry axis L2 of the metal groove.

Optionally, in this embodiment of the present invention, the amplitudes of the signal sources electrically connected to the two power feeding parts located on the same axis of symmetry are equal, and the phases differ by 180 degrees.

Optionally, in this embodiment of the present invention, the first feeder arm unit group and the second feeder arm unit group may be two feeder arm unit groups that are orthogonally distributed, and are different from those in the first feeder arm unit group. The first feed arm (specifically, the second end of the first feed arm) in the feed arm unit (the above-mentioned first feed arm unit and second feed arm unit) is electrically connected to the two feed parts. The connected signal sources are equal in amplitude and 180 degrees out of phase. Signals that are electrically connected to two feeders that are electrically connected to the first feeder arm in the feeder arm units (the third feeder arm unit and the fourth feeder arm unit) in the second feeder arm unit group described above The sources are equal in amplitude and 180 degrees out of phase.

In the embodiment of the present invention, since the data transmission rate of the antenna unit adopting the differential orthogonal feeding mode is relatively high, the above-mentioned first feeding arm unit group and the second feeding arm unit group can be orthogonally distributed, and the The amplitudes of the signal sources electrically connected to the two feeders electrically connected to the first feeder arm in the feeder arm unit in the same feeder arm unit group are equal, and the phases differ by 180 degrees, so that the embodiment of the present invention The provided antenna unit feeding mode is a differential orthogonal feeding mode, so that the data transmission rate of the antenna unit can be further improved, that is, the communication capacity and communication rate of the antenna unit can be further improved.

Optionally, in this embodiment of the present invention, the cross-sectional shape of the first insulator may be the same as the shape of the opening of the metal groove. Any possible shape such as rectangle or circle.

It should be noted that, in the embodiment of the present invention, the cross-sectional shape of the first insulator may also be any shape that can meet actual use requirements. Specifically, it can be determined according to actual usage requirements, which is not limited in the embodiment of the present invention.

Optionally, in the embodiment of the present invention, the material of the above-mentioned first insulator may be any possible material such as plastic or foam; the specific material may be determined according to actual use requirements, which is not limited in the embodiment of the present invention.

Optionally, in the embodiment of the present invention, the material of the first insulator may be an insulating material with relatively small relative permittivity and loss tangent, which may be determined according to actual use requirements, which is not limited in the embodiment of the present invention.

Exemplarily, in the embodiment of the present invention, the relative permittivity of the material of the first insulator may be 2.53, and the loss tangent value may be 0.003.

It should be noted that, in the embodiment of the present invention, on the premise of supporting the above-mentioned target radiator, the smaller the loss tangent value of the material of the first insulator, the smaller the influence of the first insulator on the radiation effect of the antenna unit. That is to say, the smaller the loss tangent value of the material of the first insulator, the smaller the influence of the first insulator on the working performance of the antenna unit, and the better the radiation effect of the antenna unit.

Optionally, in this embodiment of the present invention, the target radiator may be carried on the above-mentioned first insulator, or may be carried in the first insulator. Specifically, it can be determined according to actual usage requirements, which is not limited in the embodiment of the present invention.

Optionally, in this embodiment of the present invention, as shown in FIG. 4 , the antenna unit 20 may further include a second insulator 209 disposed between the first insulator 203 and the bottom of the metal groove 201 , and the second insulator 209 may carry each A part of the first feeding arm 205 and the second feeding arm 206 in the feeding arm unit.

Wherein, another part of the second feeding arm 206 and the third feeding arm 207 in each feeding arm unit may be located in the first insulator 203, and the first feeding arm 205 in each feeding arm unit Both ends are electrically connected to different ones of the M power feeders in the second insulator 209 .

It should be noted that, in this embodiment of the present invention, the first feeding arm, the second feeding arm, and the third feeding arm in the feeding arm unit may also be distributed in any possible place in the first insulator and the second insulator. Positions, such as the first feed arm, the second feed arm and the third feed arm in the feed arm unit are all distributed in the second insulator, and so on. Specifically, it can be determined according to actual usage requirements, which is not limited in the embodiment of the present invention.

Exemplarily, with reference to FIG. 2 , as shown in FIG. 6 , the first feeding arm 205 in each feeding arm unit described above may be carried on the second insulator 209 , and the second feeding arm in each feeding arm unit The arm 206 and the third feed arm 207 may be carried on the first insulator 203 .

Optionally, in this embodiment of the present invention, the material of the second insulator and the material of the foregoing first insulator may be the same or different. Specifically, it can be determined according to actual usage requirements, which is not limited in the embodiment of the present invention.

Optionally, in the embodiment of the present invention, the material of the second insulator may also be an insulating material with relatively small relative permittivity and loss tangent. Specifically, it can be determined according to actual usage requirements, which is not limited in the embodiment of the present invention.

Exemplarily, the relative permittivity of the material of the second insulator may be 2.8, and the loss tangent value may be 0.001.

It should be noted that, in this embodiment of the present invention, on the premise of carrying the feed arms in the above-mentioned M feed arm units, the smaller the loss tangent value of the material of the second insulator, the better the radiation effect of the second insulator on the antenna unit. less impact. That is to say, the smaller the loss tangent value of the material of the second insulator, the smaller the influence of the second insulator on the working performance of the antenna unit, and the better the radiation effect of the antenna unit.

Optionally, in this embodiment of the present invention, as shown in FIG. 4 , the bottom of the metal groove 201 may further be provided with M through holes 210 penetrating the bottom of the metal groove 201 . The parts 202 may be disposed in one of the through holes 210, respectively.

Optionally, in the embodiment of the present invention, the above-mentioned M through holes may be through holes with the same diameter.

Optionally, in the embodiment of the present invention, the above-mentioned M through holes may be distributed on the symmetry axis of the metal groove. Wherein, the distribution positions of the M through holes at the bottom of the metal groove may be specifically determined according to the distribution positions of the M feed portions at the bottom of the metal groove.

In the embodiment of the present invention, since it is relatively simple and easy to implement through holes in the metal grooves, the through holes penetrating the bottom of the metal grooves can be provided at the bottom of the metal grooves, and the M feed parts can be set respectively. The way in these through holes simplifies the process of the feed portion penetrating the metal groove.

Optionally, in the embodiment of the present invention, a third insulator may be disposed in each of the above-mentioned M through holes, and the third insulator may wrap the power feeding portion disposed in the through hole.

In the embodiment of the present invention, the above-mentioned third insulator, the feeding portion, and the through hole provided in the metal groove may constitute a coaxial transmission structure with a characteristic impedance of 50 ohms.

In the embodiment of the present invention, the above-mentioned third insulator wraps the power feeding part disposed in the through hole, so that the power feeding part can be fixed in the through hole.

Exemplarily, as shown in FIG. 4 , a plurality of through holes 210 are provided at the bottom of the metal groove 201 , each of the through holes 210 is provided with a third insulator 211 , and the power feeding part 202 can pass through the third insulator 211 provided in the through hole 210 . The three insulators 211 are electrically connected to the first feeding arm 205 (specifically, the second end of the first feeding arm) in the second insulator 209 .

It should be noted that the signal source 30 electrically connected to the other end of the power feeding part 202 in FIG. 4 may be a millimeter wave signal source in an electronic device.

In the embodiment of the present invention, the material of the third insulator may be an insulating material with a relatively small relative permittivity.

Optionally, in the embodiment of the present invention, the material of the third insulator may be any possible material such as a foam material or a plastic material.

Optionally, in this embodiment of the present invention, the material of the third insulator and the material of the first insulator may be the same insulating material, or may be different insulating materials. Specifically, it can be determined according to actual usage requirements, which is not limited in the embodiment of the present invention.

In the embodiment of the present invention, on the one hand, since the diameter of the through hole may be larger than the diameter of the power feeding part, when the power feeding part is arranged in the through hole, the power feeding part may not be fixed in the through hole. The above-mentioned third insulator is arranged in the hole, and the manner in which the third insulator wraps the power feeding part can make the power feeding part fixed in the through hole. On the other hand, since the metal groove and the feeding part are both made of metal, during the operation of the antenna unit, there may be contact between the two to cause a short circuit. Therefore, the above-mentioned third insulator can be added to the through hole. , isolate the feeding part and the metal groove, so that the feeding part and the metal groove are insulated, so that the antenna performance of the electronic device can be more stable.

It should be noted that, in the embodiments of the present invention, the antenna units shown in the above drawings are all illustratively described by taking a drawing in the embodiments of the present invention as an example. During specific implementation, the antenna units shown in the above-mentioned respective drawings can also be implemented in combination with any other drawings shown in the above-mentioned embodiments that can be combined, which will not be repeated here.

An embodiment of the present invention provides an electronic device, and the electronic device may include the antenna unit provided in any of the foregoing embodiments in FIG. 2 to FIG. 6 . For the description of the antenna unit, reference may be made to the related description of the antenna unit in the foregoing embodiments, and details are not repeated here.

The electronic device in the embodiment of the present invention may be a mobile electronic device or a non-mobile electronic device. Exemplarily, the mobile electronic device may be a mobile phone, a tablet computer, a notebook computer, a palmtop computer, a vehicle-mounted terminal, a wearable device, an ultra-mobile personal computer (UMPC), a netbook, or a personal digital assistant (personal digital assistant). , PDA), etc., the non-mobile electronic device may be a personal computer (personal computer, PC), a television (television, TV), a server or a teller machine, etc., which is not specifically limited in the embodiment of the present invention.

Optionally, in the embodiment of the present invention, at least one first groove may be provided in the housing of the electronic device, and each first groove in the at least one first groove may be provided with at least one provided by the embodiment of the present invention. the antenna unit.

In the embodiment of the present invention, the above-mentioned at least one first groove can be provided in the casing of the electronic device, and at least one antenna unit provided by the embodiment of the present invention is provided in each first groove, so as to realize the electronic device. By integrating at least one antenna unit provided by the embodiment of the present invention, an antenna array composed of the antenna unit provided by the embodiment of the present invention can be formed in an electronic device.

Optionally, in this embodiment of the present invention, the above-mentioned first groove may be provided in the frame of the casing of the electronic device.

In this embodiment of the present invention, as shown in FIG. 7 , the electronic device 4 may include a casing 40 . The housing 40 may include a first metal frame 41, a second metal frame 42 connected to the first metal frame 41, a third metal frame 43 connected to the second metal frame 42, and the third metal frame 43 and the first metal frame 41 are connected to the fourth metal frame 44 . The electronic device 4 may also include a floor 45 connected to both the second metal frame 42 and the fourth metal frame 44 , and a floor 45 disposed on the floor 45 surrounded by the third metal frame 43 , part of the second metal frame 42 and part of the fourth metal frame 44 . The first antenna 46 in the area (specifically, these metal frames may also be a part of the first antenna). Wherein, the second metal frame 42 is provided with a first groove 47 . In this way, the antenna unit provided by the embodiment of the present invention can be arranged in the first groove, so that the electronic device can include the array antenna module formed by the antenna unit provided by the embodiment of the present invention, thereby realizing the integration of the cost in the electronic device. Design of the antenna unit provided by the embodiment of the invention.

In the embodiment of the present invention, the above-mentioned floor may be a PCB, a metal middle frame in an electronic device, or a display screen of an electronic device, and any other part that can be used as a virtual ground.

It should be noted that, in this embodiment of the present invention, the above-mentioned first antenna may be a second-generation mobile communication system (ie, a 2G system), a third-generation mobile communication system (ie, a 3G system) of an electronic device, and a fourth-generation mobile communication system. Communication antenna for systems such as systems (ie, 4G systems). The antenna unit integrated in the electronic device in the embodiment of the present invention (antenna unit formed by components such as metal grooves, M feeding parts, and M feeding arm units) may be the antenna of the 5G system of the electronic device.

Optionally, in this embodiment of the present invention, the first metal frame, the second metal frame, the third metal frame, and the fourth metal frame may be sequentially connected end to end to form a closed frame; Part of the frame, the third metal frame, and the fourth metal frame may be connected to form a semi-closed frame; or, the first metal frame, the second metal frame, the third metal frame, and the fourth metal frame may not be connected to each other. Open border. Specifically, it can be determined according to actual usage requirements, which is not limited in the embodiment of the present invention.

It should be noted that the frame included in the casing 40 shown in FIG. 7 is a closed frame formed by connecting the first metal frame 41 , the second metal frame 42 , the third metal frame 43 and the fourth metal frame 44 in sequence. It is used as an example for illustrative description, and does not impose any limitation on the embodiments of the present invention. For the frames formed by other connection methods (partial frames are connected or each frame is not connected to each other) between the first metal frame, the second metal frame, the third metal frame and the fourth metal frame, the implementation method is the same as that of the embodiment of the present invention. The provided implementation manners are similar, and to avoid repetition, details are not repeated here.

Optionally, in this embodiment of the present invention, the at least one first groove may be provided in the same frame of the housing, or may be provided in different frames. Specifically, it can be determined according to actual usage requirements, which is not limited in the embodiment of the present invention.

Optionally, in this embodiment of the present invention, a plurality of first grooves may be provided on the housing of the electronic device, so that a plurality of antenna units provided in the embodiment of the present invention may be provided in the electronic device, so that the electronic device can be provided with multiple first grooves. Multiple antenna units are included to enhance the antenna performance of electronic devices.

In the embodiment of the present invention, when a plurality of antenna units are provided in the electronic device, according to the structure of the antenna units, the distance between two adjacent first grooves can be reduced, that is, the distance between the adjacent two antenna units can be reduced , so that when the electronic device includes a smaller number of antenna units, the M feeder arm units in the antenna unit (specifically, the first feeder arm, the second feeder arm and the The scanning angle of the electromagnetic wave beam radiated by the third feeding arm) and the target radiator, so that the scanning range of the millimeter wave communication antenna of the electronic device can be increased.

Optionally, in this embodiment of the present invention, the metal groove in the antenna unit may be a part of the housing of the electronic device. It can be understood that the metal groove may be a groove provided on the casing of the electronic device.

Optionally, in this embodiment of the present invention, the housing of the electronic device may be a radiator of a non-millimeter wave antenna in the electronic device.

In this embodiment of the present invention, the housing of the electronic device can also be used as a radiator for the non-millimeter-wave antenna in the electronic device, so that the antennas (the millimeter-wave antenna and the non-millimeter-wave antenna) in the electronic device can be integrated into one, so that the Reduce the space occupied by antennas in electronic devices.

Optionally, in the embodiment of the present invention, the above-mentioned metal groove may be provided on the metal frame of the casing of the electronic device.

Exemplarily, as shown in FIG. 8 , the housing 40 of the electronic device 4 provided in the embodiment of the present invention may be provided with at least one metal groove 201 , and M feeder arm units and M feeders in the antenna unit. and other components may be disposed within the metal recess 201 (in practice, the metal recess is not visible at the angle of the electronic device illustrated in FIG. 8 ).

Optionally, in this embodiment of the present invention, a metal groove may be provided in any one of the first metal frame, the second metal frame, the third metal frame, and the fourth metal frame of the housing. Specifically, it can be determined according to actual usage requirements, which is not limited in the embodiment of the present invention.

It can be understood that in the case where the metal groove is provided on the frame of the casing (for example, the above-mentioned first metal frame, etc.), the side wall of the metal groove and the bottom of the metal groove in the embodiment of the present invention can all be electronic equipment. A part of the frame may specifically be a part of the frame of the casing provided in the embodiment of the present invention.

It should be noted that, in the embodiment of the present invention, in the above-mentioned FIG. 8 , the metal groove 201 is arranged on the first metal frame 41 of the casing 40 , and the opening direction of the metal groove is the coordinate system shown in FIG. 8 . The positive direction of the Z-axis is taken as an example for illustration.

It can be understood that, in the embodiment of the present invention, as shown in FIG. 8 , when the metal groove is arranged on the second metal frame of the casing, the opening direction of the metal groove may be the positive direction of the X-axis; When the metal groove is on the third metal frame of the casing, the opening direction of the metal groove can be reversed to the Z-axis; when the metal groove is arranged on the fourth metal frame of the casing, the opening direction of the metal groove can be reversed to the X-axis. Towards.

In the embodiment of the present invention, since the above-mentioned metal groove can be provided based on the metal frame of the electronic device, so that the antenna unit provided by the embodiment of the present invention can be arranged on the metal frame, the metal texture of the electronic device is not affected, so as to maintain the The integrity of the metal frame, so that the metal ratio of the electronic device can be maintained.

In addition, the metal frame itself of the electronic device is used as the reflector of the antenna unit to obtain higher gain, and the antenna unit is insensitive to the environment and devices inside the electronic device, which facilitates the design of the structure stacking of the electronic device.

Optionally, in this embodiment of the present invention, a plurality of metal grooves may be set in the housing of the electronic device, and M feeder arm units and M feeder units in the embodiment of the present invention are set in each metal groove. components such as parts, so that a plurality of antenna units provided by the embodiments of the present invention can be integrated into an electronic device, so that these antenna units can form an antenna array, so that the antenna performance of the electronic device can be improved.

In the embodiment of the present invention, as shown in FIG. 9 , when the antenna unit provided by the embodiment of the present invention radiates a signal with a frequency of 28 GHz, the radiation pattern of the antenna unit; as shown in FIG. 10 , the antenna provided by the embodiment of the present invention When the unit radiates a signal with a frequency of 39GHz, the radiation pattern of the antenna unit. It can be seen from FIG. 9 and FIG. 10 that the maximum radiation direction of the antenna unit at 28 GHz is the same as the maximum radiation direction of the antenna unit at 39 GHz. Therefore, the antenna unit provided by the embodiment of the present invention is suitable for forming a broadband antenna array. In this way, the electronic device can be provided with at least two metal grooves, and each metal groove can be provided with the above-mentioned M feeder arm units and M feeders and other components, so that the electronic device includes multiple implementations of the present invention. By using the antenna unit provided in the example, the electronic device can include the antenna array composed of the antenna unit, thereby improving the antenna performance of the electronic device.

Optionally, in this embodiment of the present invention, when multiple antenna units provided in the embodiment of the present invention are integrated into an electronic device, the distance between two adjacent antenna units (that is, the distance between two adjacent metal grooves) The distance between the antenna elements) can be determined according to the isolation degree of the antenna elements and the scanning angle of the antenna array formed by the plurality of antenna elements. Specifically, it can be determined according to actual usage requirements, which is not limited in the embodiment of the present invention.

Optionally, in this embodiment of the present invention, the number of metal grooves provided in the casing of the electronic device may be determined according to the size of the metal groove and the size of the casing of the electronic device, which is not limited in this embodiment of the present invention.

Exemplarily, as shown in FIG. 11 , it is a bottom view of the multiple antenna units provided on the housing provided in the embodiment of the present invention in the forward direction of the Z-axis (the coordinate system shown in FIG. 8 ). Assuming that the metal groove is a rectangular groove, as shown in FIG. 11 , the third metal frame 43 is provided with a plurality of antenna units provided by the embodiment of the present invention (each antenna unit is composed of a metal groove on the casing, a M feed parts at the bottom of the groove and M feed arm units arranged in the metal groove are formed). Wherein, the surface of the third feeding arm 207 in each feeding arm unit and the surface of the target radiator 204 may be flush with the surface where the opening of the metal groove 201 is located.

It should be noted that, in the embodiment of the present invention, the above-mentioned FIG. 11 uses four antenna units disposed on the third metal frame as an example for illustrative description, which does not form any limitation to the embodiment of the present invention. It can be understood that, during specific implementation, the number of antenna units disposed on the third metal frame may be determined according to actual use requirements, and is not limited in any embodiment of the present invention.

An embodiment of the present invention provides an electronic device, and the electronic device may include an antenna unit. The antenna unit may include: a metal groove, M feed parts disposed at the bottom of the metal groove, M feed arm units and a first insulator disposed in the metal groove, and a target radiator carried by the first insulator ; wherein, each feeding arm unit includes a first feeding arm, a second feeding arm electrically connected with the first end of the first feeding arm, and a third feeding arm electrically connected with the second feeding arm , the second end of the first feeding arm in each feeding arm unit is electrically connected to different feeding parts in the M feeding parts; the third feeding arm in each feeding arm unit is connected to the target radiator coupling, or the first feeding arm, the second feeding arm and the third feeding arm in each feeding arm unit are all coupled with the target radiator, and M is an integer greater than 1. With this solution, since the first end of the first feed arm in the feed arm unit is electrically connected to the second feed arm, the second feed arm is electrically connected to the third feed arm, and the first feed arm, Both the second feeding arm and the third feeding arm can be coupled with the target radiator. Therefore, when the feeding arm unit receives an AC signal, the target radiator can generate an induced AC signal by coupling with the target radiator. , and the current path of the induced current generated on the target radiator is short, so the target radiator can radiate high-frequency electromagnetic waves outward. Moreover, since the third feeding arm in the feeding arm unit can be coupled with the target radiator, when the feeding part transmits the AC signal to one feeding arm unit, the third feeding arm in the feeding arm unit It can be coupled with the target radiator, and both the target radiator and the third feed arm can generate induced current, and after the target radiator generates the induced current, the target radiator can be coupled with the third feeder in another feed arm unit. Arm coupling, the other feeding arm unit can generate induced current, so the current paths through the feeding arm unit and the target radiator can have multiple paths (for example, the current path formed on one feeding arm unit, one feeding arm The current path from the unit to the target radiator, and then to another feeder arm unit, etc.), and these current paths are relatively long, so that the feeder arm unit and the target radiator can radiate low-frequency electromagnetic waves outward. In this way, the antenna unit can cover multiple frequency bands of the millimeter wave (for example, the high frequency frequency band n260 and the low frequency frequency band n257), so that the bandwidth covered by the antenna unit can be increased.

It should be noted that, herein, the terms "comprising", "comprising" or any other variation thereof are intended to encompass non-exclusive inclusion, such that a process, method, article or device comprising a series of elements includes not only those elements, It also includes other elements not expressly listed or inherent to such a process, method, article or apparatus. Without further limitation, an element qualified by the phrase "comprising a..." does not preclude the presence of additional identical elements in a process, method, article or apparatus that includes the element.

The embodiments of the present application have been described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific embodiments, which are merely illustrative rather than restrictive. Under the inspiration of this application, without departing from the scope of protection of the purpose of this application and the claims, many forms can be made, which all fall within the protection of this application.

Claims (14)

1. An antenna unit, characterized in that, the antenna unit comprises: a metal groove, M feed parts arranged at the bottom of the metal groove, and M feed arms arranged in the metal groove a cell and a first insulator, and a target radiator carried by the first insulator; Wherein, each feeder arm unit includes a first feeder arm, a second feeder arm electrically connected to the first end of the first feeder arm, and a third feeder arm electrically connected to the second feeder arm, The second end of the first feeding arm in each feeding arm unit is electrically connected with different feeding parts in the M feeding parts; the third feeding part in each feeding arm unit is electrically connected The arm is coupled to the target radiator, or the first feeding arm, the second feeding arm and the third feeding arm in each feeding arm unit are all coupled to the target radiator, and M is greater than 1 the integer. 2 . The antenna unit according to claim 1 , wherein the first feeding arm and the third feeding arm in each feeding arm unit are parallel to the surface where the opening of the metal groove is located, The second feed arm in each feed arm unit is perpendicular to the first feed arm and the third feed arm. 3 . The antenna unit according to claim 1 , wherein the third feed arm in each feed arm unit is located on the same plane as the target radiator. 4 . 4 . The antenna unit according to claim 1 , wherein the projection of the target radiator on the first plane intersects with the first feed arm in each feed arm unit, and the first feed arm unit. 5 . A plane is the plane where the first feeding arm in each feeding arm unit is located. 5 . The antenna unit according to claim 1 , wherein the surface of the target radiator and the surface of the third feed arm in each feed arm unit are located where the opening of the metal groove is located. 6 . surface is flush. 6 . The antenna unit according to claim 1 , wherein the distance between the first end of the first feeding arm in each feeding arm unit and the center of the metal groove is greater than the first the distance between the second end of the feeding arm and the center of the metal groove. 7 . The antenna unit according to claim 1 , wherein the M feeder arm units are four feeder arm units, and the four feeder arm units form two feeder arm units. 8 . Electric arm unit group, each feed arm unit group includes two feed arm units symmetrically arranged, and the symmetry axis of one feed arm unit group is orthogonal to the symmetry axis of the other feed arm unit group. 8 . The antenna unit according to claim 1 , wherein the M feed portions penetrate through the bottom of the metal groove and are insulated from the metal groove. 9 . 9 . The antenna unit according to claim 1 , wherein the cross-section of the opening of the metal groove is a rectangle, the M feeding parts are four feeding parts, and the Two of the four feeding parts are located on one axis of symmetry of the metal groove, and the other two feeding parts of the four feeding parts are located on the other axis of symmetry of the metal groove superior. 10 . The antenna unit according to claim 9 , wherein the signal sources electrically connected to the two feeders located on the same axis of symmetry have the same amplitude and a phase difference of 180 degrees. 11 . 11. The antenna unit according to any one of claims 1 to 6, wherein the antenna unit further comprises a second insulator disposed between the first insulator and the bottom of the metal groove, so the second insulator carries a part of the first feed arm and the second feed arm in each feed arm unit; Wherein, the other part of the second feed arm and the third feed arm in each feed arm unit are located in the first insulator, and the first feed arm in each feed arm unit is located in the first insulator. The second ends are all electrically connected to different power feeding parts of the M power feeding parts in the second insulator. 12. An electronic device, characterized in that the electronic device comprises at least one antenna unit according to any one of claims 1 to 9. 13 . The electronic device according to claim 12 , wherein at least one first groove is provided in the housing of the electronic device, and each of the at least one first groove is in the first groove. 14 . At least one of the antenna elements is provided. 14. The electronic device according to claim 12, wherein the metal groove in the antenna unit is a part of the housing of the electronic device.

Images