Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
In the description of the present application, terms such as "first", "second", are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. Thus, a feature defined by terms such as "first," "second," etc., may explicitly or implicitly include one or more of the recited features. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.
The following disclosure provides many different embodiments or examples for implementing different features of the application. In order to simplify the disclosure of the present application, specific example components and arrangements are described below. Of course, they are merely examples and are not intended to limit the present application. Moreover, the present application may repeat reference numerals and/or letters in the various examples, such repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed. In addition, examples of various specific processes and materials are provided herein, but one of ordinary skill in the art may recognize applications of other processes and/or use of other materials.
With the development of communication technology, frequency bands of radio frequency signals required to be transmitted by electronic equipment are more and more, but the internal space of the electronic equipment is more and more narrow, so that a plurality of antenna radiators cannot be prevented inside the electronic equipment. Therefore, it is thought that different types of antennas share a radiator, thereby realizing transmission of a multiband radio frequency signal by an electronic device. However, when the electronic device works, the antennas corresponding to the radio frequency signals of different frequency bands need to transmit the radio frequency signals, so that mutual interference between the antennas is strong, and finally, the radiation performance of the antennas is reduced.
In order to solve the technical problem, an embodiment of the present application provides an antenna system and an electronic device, where the electronic device can coordinate operating states between antennas in the antenna system, so as to adjust and improve radiation performance of the antennas, and improve communication capability of the electronic device.
The electronic equipment can be electronic equipment such as a computer, a smart phone, a smart home appliance and smart wearable equipment. The electronic device will be described in detail below.
Referring to fig. 1, fig. 1 is a schematic view of a first structure of an electronic device according to an embodiment of the present disclosure.
Taking the electronic device as an example of an intelligent wearable device, the electronic device includes a display screen 10, a housing 20, a circuit board 30, a battery 40, a first wearable portion 50, and a second wearable portion 60.
The display screen 10 is disposed on the housing 20 to form a display surface of the electronic device for displaying images, texts, and other information. The Display screen 10 may include a Liquid Crystal Display (LCD) or an Organic Light-Emitting Diode (OLED) Display screen.
It will be appreciated that the display screen 10 may include a display surface and a non-display surface opposite the display surface. The display surface is a surface of the display screen 10 facing a user, i.e. a surface of the display screen 10 visible to a user on an electronic device. The non-display surface is a surface of the display screen 10 facing the inside of the electronic device. The display surface is used for displaying information, and the non-display surface does not display information.
It will be appreciated that a cover plate may also be provided over the display screen 10 to protect the display screen 10 from scratching or water damage. The cover plate may be a transparent glass cover plate, so that a user can observe contents displayed on the display screen 10 through the cover plate. It will be appreciated that the cover plate may be a glass cover plate of sapphire material.
The housing 20 serves to form an outer contour of the electronic apparatus so as to accommodate electronic devices, functional components, and the like of the electronic apparatus while sealing and protecting the electronic devices and functional components inside the electronic apparatus. For example, the camera, the circuit board, and the vibration motor of the electronic device may be disposed inside the housing 20. It is understood that the housing 20 may include a center frame 21 and a rear cover 22.
The middle frame 21 may have a thin plate-like or sheet-like structure, or may have a hollow frame 21 structure. The middle frame 21 is used for providing a supporting function for the electronic device or the functional component in the electronic equipment so as to mount the electronic device or the functional component of the electronic equipment together. For example, the middle frame 21 may be provided with a groove, a protrusion, a through hole, and the like, so as to facilitate mounting of an electronic device or a functional component of the electronic device. It is understood that the material of the middle frame 21 may include metal or plastic.
The rear cover 22 is connected to the middle frame 21. For example, the rear cover 22 may be attached to the center frame by an adhesive such as a double-sided tape to achieve connection with the center frame. The rear cover 22 is used for sealing the electronic devices and functional components of the electronic equipment inside the electronic equipment together with the middle frame 21 and the display screen 10, so as to protect the electronic devices and functional components of the electronic equipment. It is understood that the material of the rear cover 22 may also include metal or nonmetal.
A circuit board 30 is disposed inside the housing 20. For example, the circuit board 30 may be mounted on a middle frame of the case 20 to be fixed, and the circuit board 30 is sealed inside the electronic device by the rear cover 22. Specifically, the circuit board may be installed at one side of the loading plate, and the display screen is installed at the other side of the loading plate. The circuit board 30 may be a main board of the electronic device. One or more of functional components such as a processor, a camera, an earphone interface, an acceleration sensor, a gyroscope, and a motor may also be integrated on the circuit board 30. Meanwhile, the display screen 10 may be electrically connected to the circuit board 30 to control the display of the display screen 10 by a processor on the circuit board 30.
The battery 40 is disposed inside the case 20. For example, the battery 40 may be mounted on the middle frame 21 of the case 20 to be fixed, and the battery 40 is sealed inside the electronic device by the rear cover 22. Meanwhile, the battery 40 is electrically connected to the circuit board 30 to enable the battery 40 to supply power to the electronic device. The circuit board 30 may be provided thereon with a power management circuit. The power management circuit is used to distribute the voltage provided by the battery 40 to the various electronic devices in the electronic apparatus.
The electronic apparatus further includes a first wearing portion 50 and a second wearing portion 60, wherein the first wearing portion 50 and the second wearing portion 50 are connected with the middle frame 20. The material of the first wearing portion 50 and the second wearing portion 50 may be made of a metal material, for example, a plurality of metal connectors are provided on the first wearing portion 50 and the second wearing portion 50, and the plurality of metal connectors are connected to form the first wearing portion 50 and the second wearing portion 50. The first wearing portion 50 and the second wearing portion 50 may also be made of a non-metal material, such as leather, cloth, plastic, etc.
In addition, a plurality of antenna radiators are arranged in the electronic device, and the antenna radiators are used for radiating radio frequency signals to the outside and receiving the outside radio frequency signals so as to realize the wireless communication function of the electronic device.
In some embodiments, the antenna radiator enables transmission of multi-band signals, e.g., long term evolution, LTE, signals, WiFi signals, 5G signals, GPS signals, etc.
The LTE signal is a long term evolution LTE signal transmitted based on UMTS (Universal Mobile Telecommunications System) technical standard established by 3GPP (The 3rd Generation Partnership Project) organization, and is used for accessing a wireless communication network to implement wireless communication. The LTE signal of long term evolution may be divided into a Low Band (LB), a Medium Band (MB), and a High Band (HB), where the LB includes a frequency range of 700MHz to 960MHz, the MB includes a frequency range of 1710MHz to 2170MHz, and the HB includes a frequency range of 2300MHz to 2690 MHz; the Wi-Fi signals are signals which are wirelessly transmitted based on a Wi-Fi technology and are used for accessing a wireless local area network to realize network communication, and the Wi-Fi signals comprise Wi-Fi signals with the frequency of 2.4GHz and 5 GHz; the 5G signal is used for accessing a wireless communication network to realize wireless communication, and the 5G signal includes radio frequency signals of N1, N3, N41, N78, N79 and other frequency bands.
For more detailed description of the electronic device provided in the embodiment of the present application, please refer to fig. 2, and fig. 2 is a second structural schematic diagram of the electronic device provided in the embodiment of the present application.
In some embodiments, the electronic device includes a first antenna 210 and a second antenna 220, the first antenna 210 and the second antenna 220 are disposed on a middle frame 21 of the electronic device, the middle frame 21 of the electronic device may be made of a non-metal material, and the first antenna 210 and the second antenna 220 may be disposed on a side of the middle frame 21 facing an inside of the electronic device by using a Laser Direct Structuring (LDS).
In some embodiments, the middle frame 21 may also be made of a metal material, and the middle frame 21 may be a radiator of an electronic device by performing a grooving, an opening, and the like on the middle frame 21, and the first antenna 210 and the second antenna 220 may share the radiator to transmit a radio frequency signal.
In some embodiments, the first antenna 210 may be used to transmit radio frequency signals in a first frequency band and the second antenna 220 may be used to transmit radio frequency signals in a second frequency band. The first antenna 210 and the second antenna 220 have a common ground point, which may be provided on the middle frame 21 of the electronic device. The ground point may be connected to the circuit board 30 inside the electronic device, enabling the first antenna 210 and the second antenna 220 to be connected to the system ground.
The grounding points include a first grounding point 211 and a second grounding point 213, and both the first antenna 210 and the second antenna 220 can be connected to the first grounding point 211 and the second grounding point 213, so that the first antenna 210 and the second antenna 220 can be connected to the system ground of the electronic device.
In some embodiments, a first feeding point 212 and a second feeding point 214 may be disposed on the metal middle frame 21, the first feeding point 212 is used for feeding an excitation signal of a first frequency band to the first antenna 210, and the second feeding point 214 is used for feeding an excitation signal of a second frequency band to the second antenna 220, so that the first antenna 210 transmits a radio frequency signal of the first frequency band and the second antenna 220 transmits a radio frequency signal of the second frequency band.
In some embodiments, the middle frame 21 of the electronic device is rectangular, and there are a first frame 201 and a third frame 203 opposite to each other, and a second frame 202 and a fourth frame 204 opposite to each other on the middle frame 21. A first feeding point 212 and a first grounding point 211 are arranged on the first frame 201, and the first grounding point 211 are arranged at two opposite ends of the first frame 201, wherein the first grounding point 211 is close to the fourth frame 204, and the first feeding point 212 is close to the second frame 202.
A second grounding point 213 and a second feeding point 214 are arranged on the third rim 203, the second grounding point 213 and the second feeding point 214 are arranged at opposite ends of the third rim 203, the second grounding point 213 is close to the second rim 202, and the second feeding point 214 is close to the fourth rim 204.
In some embodiments, a sensor 31 and a processor are further disposed inside the electronic device, the sensor 31 may be a gravity sensor, an acceleration sensor, a gyroscope, or the like, and when the electronic device is moved, the sensor 31 may detect that the electronic device is in a motion state. At this time, the electronic device may adjust the working states of the first antenna 210 and the second antenna 220, so as to improve the radiation efficiency of the first antenna 210 or the second antenna 220, thereby improving the communication quality of the electronic device.
Referring to fig. 3, fig. 3 is a first circuit diagram of an antenna system according to an embodiment of the present disclosure.
As shown in fig. 3, the first circuit of the antenna system includes a first antenna 210, a first switch K1, a first ground point 211, a first matching circuit M1, and a second matching circuit M2.
The first antenna 210 is connected to the first matching circuit M1 and the second matching circuit M2, the first matching circuit M1 and the second matching circuit M2 are connected in parallel, one end of the first switch K1 is connected to the first ground 211, and the other end of the first switch K1 is connected to the first matching circuit M1 or the second matching circuit M2. When the first switch K1 is connected to the first matching circuit M1 or the second matching circuit M2, the first matching circuit M1 or the second matching circuit M2 can match a signal on the first antenna 210, thereby changing the radiation performance of the first antenna 210.
For example, when the first switch K1 is connected to the first matching circuit M1, the first antenna 210 is used to transmit signals in the first frequency band, and the first antenna 210 can normally meet the requirement of radiation performance for transmitting signals in the first frequency band, that is, the power corresponding to the first antenna 210 is normal, and can meet the requirement of transmitting all signals in the first frequency band.
When the first switch K1 is connected to the second matching circuit M2, the first antenna 210 is used to transmit a part of signals in the first frequency band, the power corresponding to the first antenna 210 is reduced, and signals in a plurality of small frequency bands in the first frequency band that can be transmitted are reduced, so that the radiation performance of the first antenna 210 is reduced.
Referring to fig. 4, fig. 4 is a second circuit diagram of an antenna system according to an embodiment of the present disclosure.
As shown in fig. 4, the second circuit of the antenna system includes the second antenna 220, the second switch K2, the second ground point 213, the third matching circuit M3, and the fourth matching circuit M4.
The second antenna 220 is connected to the third matching circuit M3 and the fourth matching circuit M4, the third matching circuit M3 and the fourth matching circuit M4 are connected in parallel, one end of the second switch K2 is connected to the second ground 213, and the other end of the second switch K2 is connected to the third matching circuit M3 or the fourth matching circuit M4. When the second switch K2 is connected to the third matching circuit M3 or the fourth matching circuit M4, the third matching circuit M3 or the fourth matching circuit M4 can match signals on the second antenna 220, thereby changing the radiation performance of the second antenna 220.
For example, when the second switch K2 and the third matching circuit M3 are turned on, the second antenna 220 can normally transmit the signal in the second frequency band, the radiation performance of the second antenna 220 just satisfies the transmission of the signal in the second frequency band, and the power of the second antenna 220 satisfies the transmission of the partial signal in the second frequency band.
When the second switch K2 and the fourth matching circuit M4 are turned on, the second antenna 220 can normally transmit all signals in the second frequency band, the power of the second antenna 220 is higher than that when the second switch K2 is connected to the third matching circuit M3, and the radiation performance of the second antenna 220 is stronger.
In some embodiments, the radio frequency signals of the first frequency band may be GPS signals and the radio frequency signals of the second frequency band may be cellular network signals. That is, the first antenna 210 may transmit GPS signals and the second antenna 220 may transmit cellular network signals.
In the actual use process of the electronic device, the first antenna 210 is usually used for receiving GPS signals for positioning, and the second antenna 220 is used for transceiving cellular network signals to implement functions such as internet surfing. In order to ensure that the communication capability of the electronic device is not affected when the electronic device uses the first antenna 210 and the second antenna 220, the operation states of the first antenna 210 and the second antenna 220 are controlled by adjusting the connection condition between the connection of the first grounding point 211 and the second grounding point 213 and the matching circuit.
For example, when the electronic device needs to use both the GPS signal and the cellular network signal, the first switch K1 may be connected to the first matching circuit M1, and the second switch K2 may be connected to the third matching circuit M3, so that the first ground point 211 is connected to the first matching circuit M1, and the second ground point 213 is connected to the third matching circuit M3. At this time, the first antenna 210 and the second antenna 220 can both achieve a radiation performance on a medium bias, and the electronic device can use both the GPS signal and the cellular network signal.
In some scenarios, the user may stay at a certain point for a long time, and the electronic device may detect that the user is in a non-moving state through the built-in sensor 31, and at this time, the GPS signal is not required to be used. At this time, the first switch K1 may be connected to the second matching circuit M2, and the second switch K2 may be connected to the third matching circuit M3, and the radiation performance of the first antenna 210 may be reduced, but the radiation performance of the second antenna 220 may be further enhanced. That is, the GPS signal received by the electronic device may be weak, and the electronic device may have a strong ability to transmit and receive cellular network signals. Therefore, the working states of the first antenna 210 and the second antenna 220 can be flexibly adjusted to further enhance the communication capability of the electronic device.
Referring to fig. 5, fig. 5 is a third circuit diagram of an antenna system according to an embodiment of the present disclosure.
The antenna system comprises a first antenna 210, a second antenna 220, a first switch K1, a second switch K2, a first grounding point
Wherein the first antenna 210 and the second antenna 220 are both connected to a common ground point G1. The first matching circuit M1 and the second matching circuit M2 are connected in parallel to the first antenna 210, the third matching circuit M3 and the fourth matching circuit M4 are connected in parallel to the second antenna 220, the first switch K1 and the second switch K2 are connected in parallel to the common ground G1, the first switch K1 may be connected to the first matching circuit M1 or the second matching circuit M2, and the second switch K2 may be connected to the third matching circuit M3 or the fourth matching circuit M4.
During the actual operation of the electronic device, the connection state between the common ground point G1 and the matching circuit can be controlled by the first switch K1 and the second switch K2, so as to adjust the operation states of the first antenna 210 and the second antenna 220.
For example, when the common ground point G1 is connected to the first matching circuit M1 and the fourth matching circuit M4, the capability of the electronic device to transmit and receive the radio frequency signals of the first frequency band and the radio frequency signals of the second frequency band can be enhanced at the same time. When the common ground point G1 is connected to the second matching circuit M2 and the third matching circuit M3, the transceiving capacity of the electronic device for the radio frequency signal of the first frequency band is enhanced, and the transceiving capacity of the radio frequency signal of the second frequency band is weakened.
In some embodiments, the first feeding point 212 corresponding to the first antenna 210 may also feed radio frequency signals in a third frequency band, such as Wi-Fi signals, bluetooth signals, and the like, so as to implement transmission of radio frequency signals in different frequency bands by the first antenna 210.
In some embodiments, a processor is disposed inside the electronic device, and the processor may determine a motion state of the electronic device according to data acquired by the acceleration sensor, and control a connection state of the first switch K1 and the first and second matching circuits M1 and M2, and a connection state of the second switch K2 and the third and fourth matching circuits M3 and M4 according to the motion state.
When the electronic device is in a static state, the processor may control the first switch K1 to disconnect the first matching circuit M1 and the second matching circuit M2, and at this time, the first antenna 210 may stop working, thereby saving power of the electronic device. Alternatively, the first antenna 210 is controlled to transmit the radio frequency signal of the third frequency band.
Referring to fig. 6, fig. 6 is a schematic view of a third structure of an electronic device according to an embodiment of the present application.
In addition to the first antenna 210 and the second antenna 220 provided on the electronic device middle frame 21, a third antenna 510 may be provided on the first wearing portion 50 and a fourth antenna 520 may be provided on the second wearing portion 60 of the electronic device.
The third antenna 510 and the fourth antenna 520 may transmit radio frequency signals of the first frequency band or radio frequency signals of the second frequency band. When the signal strength of the radio frequency signal of the first frequency band and the radio frequency signal of the second segment received and transmitted by the electronic device are both good, the third antenna 510 and the fourth antenna 520 may be stopped to work, so as to save the electric quantity of the electronic device. When the signal strength of the electronic device for transceiving the radio frequency signal of the first frequency band is poor, the third antenna 510 and/or the fourth antenna 520 may be enabled to transceive the radio frequency signal of the first frequency band, so as to enhance the capability of the electronic device for transceiving the radio frequency signal of the first frequency band.
The electronic equipment that this application embodiment provided includes: the antenna comprises a first antenna 210, a second antenna 220, a grounding point and a switch, wherein the first antenna 210 is used for transmitting radio frequency signals of a first frequency band, the second antenna 220 is used for transmitting radio frequency signals of a second frequency band, one end of the switch is connected with the grounding point, the other end of the switch is connected with a plurality of matching circuits, and the switch is used for connecting at least one matching circuit in the plurality of matching circuits into an antenna system so as to adjust the radiation performance of the first antenna and the second antenna. The connection state of the antenna system and the matching circuit is controlled through the switch, so that the radiation performance of the first antenna and the second antenna is adjusted, and the communication capacity of the electronic equipment is improved.
The antenna system and the electronic device provided in the embodiments of the present application are described in detail above, and specific examples are applied in the present application to explain the principles and embodiments of the present application, and the description of the embodiments above is only used to help understand the method and the core idea of the present application; meanwhile, for those skilled in the art, according to the idea of the present application, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present application.