CN108768432B - Radio frequency circuit and electronic equipment - Google Patents

Abstract

Embodiments of the present application provide a radio frequency circuit and an electronic device, where the radio frequency circuit includes a radio frequency transceiver module, a first filter element, a second filter element, a radio frequency switch, and an antenna. In the radio frequency circuit provided by the embodiment of the present application, when the first radio frequency signal and the second radio frequency signal received and received by the radio frequency transceiver module include signal components of the same frequency, filtering is performed by filtering elements in different signal paths, not only can The carrier aggregation of the first radio frequency signal and the second radio frequency signal can be avoided, and the mutual interference between the first radio frequency signal and the second radio frequency signal can be avoided, so that the diversity of the carrier aggregation of the radio frequency signal by the electronic device can be improved.

Description

RF circuits and electronic equipment

technical field

The present application relates to the field of communication technologies, and in particular, to a radio frequency circuit and an electronic device.

Background technique

With the development of communication technologies, more and more communication frequency bands can be supported by mobile terminals. For example, an LTE (Long Term Evolution, Long Term Evolution) communication signal may include a signal with a frequency between 700 MHz and 2700 MHz.

The radio frequency signals that the mobile terminal can support can be divided into low frequency signals, intermediate frequency signals and high frequency signals. The low-frequency signal, the intermediate-frequency signal, and the high-frequency signal each include a plurality of sub-band signals. Each sub-band signal needs to be transmitted to the outside world through an antenna.

Thus, a carrier aggregation (Carrier Aggregation, CA for short) technology is produced. Through carrier aggregation, multiple sub-band signals can be aggregated together to improve the network uplink and downlink transmission rate.

At present, the frequency resources of each communication market in the world are different from each other. Communication operators in different regions have different communication spectrum allocations, so there are different frequency band combination requirements for carrier aggregation. However, the current carrier aggregation can perform aggregation in a single frequency band, lacks diversity, and cannot meet the above requirements.

SUMMARY OF THE INVENTION

Embodiments of the present application provide a radio frequency circuit and an electronic device, which can improve the diversity of carrier aggregation of radio frequency signals by the electronic device.

An embodiment of the present application provides a radio frequency circuit, including:

a radio frequency transceiver module for transmitting and receiving a first radio frequency signal and a second radio frequency signal, the frequency range of the first radio frequency signal includes the first frequency band, and the frequency range of the second radio frequency signal includes the second frequency band;

a first filter element, coupled to the radio frequency transceiver module, the first filter element is used to filter out a first spurious signal in the first radio frequency signal, and the frequency range of the first spurious signal includes the the second frequency band;

a second filter element, coupled to the radio frequency transceiver module, the second filter element is used to filter out a second spurious signal in the second radio frequency signal, and the frequency range of the second spurious signal includes the first frequency band;

a radio frequency switch, which is respectively coupled to the first filter element and the second filter element, and the radio frequency switch is used to implement carrier aggregation of the first radio frequency signal and the second radio frequency signal;

an antenna coupled with the radio frequency switch.

An embodiment of the present application further provides an electronic device, including a casing and a circuit board installed inside the casing, the circuit board is provided with a radio frequency circuit, and the radio frequency circuit is the above-mentioned radio frequency circuit.

In the radio frequency circuit provided by the embodiment of the present application, when the first radio frequency signal and the second radio frequency signal received and received by the radio frequency transceiver module include signal components of the same frequency, filtering is performed by filtering elements in different signal paths, not only can The carrier aggregation of the first radio frequency signal and the second radio frequency signal can be avoided, and the mutual interference between the first radio frequency signal and the second radio frequency signal can be avoided, so that the diversity of the carrier aggregation of the radio frequency signal by the electronic device can be improved.

Description of drawings

In order to illustrate the technical solutions in the embodiments of the present application more clearly, the following briefly introduces the accompanying drawings that are used in the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained from these drawings without creative effort.

FIG. 1 is a schematic structural diagram of an electronic device provided by an embodiment of the present application.

FIG. 2 is another schematic structural diagram of an electronic device provided by an embodiment of the present application.

FIG. 3 is an exploded schematic diagram of an electronic device provided by an embodiment of the present application.

FIG. 4 is a schematic structural diagram of a radio frequency circuit provided by an embodiment of the present application.

FIG. 5 is another schematic structural diagram of a radio frequency circuit provided by an embodiment of the present application.

FIG. 6 is another schematic structural diagram of a radio frequency circuit provided by an embodiment of the present application.

FIG. 7 is a schematic diagram of a scene when a B7 frequency band radio frequency signal is transmitted in an embodiment of the present application.

FIG. 8 is a schematic diagram of a scene when a B41 frequency band radio frequency signal is transmitted in an embodiment of the present application.

Detailed ways

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

In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", " rear, left, right, vertical, horizontal, top, bottom, inside, outside, clockwise, counterclockwise, etc., or The positional relationship is based on the orientation or positional relationship shown in the accompanying drawings, which is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, Therefore, it should not be construed as a limitation on this application. In addition, the terms "first" and "second" are only used for descriptive purposes, and should not be construed as indicating or implying relative importance or implying the number of indicated technical features. Thus, features defined as "first", "second" may expressly or implicitly include one or more of said features. In the description of the present application, "plurality" means two or more, unless otherwise expressly and specifically defined.

In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it may be a fixed connection or a detachable connection Connection, or integral connection; it can be mechanical connection, electrical connection or can communicate with each other; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal communication of two elements or the interaction of two elements relation. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific situations.

In this application, unless otherwise expressly specified and defined, a first feature "on" or "under" a second feature may include direct contact between the first and second features, or may include the first and second features Not directly but through additional features between them. Also, the first feature being "above", "over" and "above" the second feature includes the first feature being directly above and obliquely above the second feature, or simply means that the first feature is level higher than the second feature. The first feature is "below", "below" and "below" the second feature includes the first feature being directly below and diagonally below the second feature, or simply means that the first feature has a lower level than the second feature.

The following disclosure provides many different embodiments or examples for implementing different structures of the present application. To simplify the disclosure of the present application, the components and arrangements of specific examples are described below. Of course, they are only examples and are not intended to limit the application. Furthermore, this application may repeat reference numerals and/or reference letters in different instances for the purpose of simplicity and clarity, and does not in itself indicate a relationship between the various embodiments and/or arrangements discussed. In addition, this application provides examples of various specific processes and materials, but one of ordinary skill in the art will recognize the application of other processes and/or the use of other materials.

Embodiments of the present application provide an electronic device. The electronic device may be a smartphone, a tablet computer, etc., or a game device, an AR (Augmented Reality, augmented reality) device, a car, a data storage device, an audio playback device, a video playback device, a notebook, a desktop computing device, etc. , and can also be wearable devices such as electronic watches, electronic glasses, electronic helmets, electronic bracelets, electronic necklaces, electronic clothing and other devices.

In some embodiments, referring to FIGS. 1 and 3 , the electronic device 100 includes a display screen 11 , a middle frame 12 , a circuit board 13 , a battery 14 and a back cover 15 .

The display screen 11 is mounted on the back cover 15 to form a display surface of the electronic device 100 . The display screen 11 serves as the front case of the electronic device 100 , and together with the rear cover 15 forms the case of the electronic device 100 , and is used for accommodating other electronic components or functional components of the electronic device 100 . Meanwhile, the display screen 11 forms a display surface of the electronic device 100 for displaying information such as images and texts. The display screen 11 may be a liquid crystal display (Liquid Crystal Display, LCD) or an organic light-emitting diode (Organic Light-Emitting Diode, OLED) type display screen.

In some embodiments, a glass cover plate may be provided on the display screen 11 . The glass cover can cover the display screen 11 to protect the display screen 11 and prevent the display screen 11 from being scratched or damaged by water.

In some embodiments, as shown in FIG. 1 , the display screen 11 may include a display area 111 and a non-display area 112 . Among them, the display area 111 performs the display function of the display screen 11 for displaying information such as images and texts. The non-display area 112 can be used to set functional components such as distance sensors, receivers, and touch electrodes on the display screen. In some embodiments, the non-display area 112 may include at least one area located at the upper and lower parts of the display area 111 .

In some embodiments, as shown in FIG. 2 , the display screen 11 may be a full screen. At this time, the display screen 11 can display information in a full screen, so that the electronic device 100 has a larger screen ratio. The display screen 11 only includes the display area 111 and does not include the non-display area, or the area of the non-display area is relatively small. At this time, functional components such as a distance sensor and an ambient light sensor in the electronic device 100 can be hidden under the display screen 11 , and the fingerprint recognition module of the electronic device 100 can be disposed on the back of the electronic device 100 .

The middle frame 12 may have a thin plate-like or sheet-like structure, or a hollow frame structure. The middle frame 12 can be accommodated in the casing formed by the display screen 11 and the rear cover 15 described above. The middle frame 12 is used to provide support for the electronic components or functional components in the electronic device 100, so as to mount the electronic components and functional components in the electronic device together. For example, functional components such as receivers, circuit boards, and batteries in the electronic equipment can be installed on the middle frame 12 for fixing. In some embodiments, the material of the middle frame 12 may include metal or plastic.

The circuit board 13 is installed inside the housing of the electronic device 100 . The circuit board 13 may be the main board of the electronic device 100 . The circuit board 13 is provided with a ground point to realize the grounding of the circuit board 13 . A processing circuit is integrated on the circuit board 13 . The processing circuit is used to process application programs and data in the electronic device 100 . The circuit board 13 may also be integrated with one, two or more functional components such as a motor, a microphone, a speaker, a receiver, a headphone jack, a universal serial bus interface (USB interface), a distance sensor, an ambient light sensor, and a gyroscope. . Meanwhile, the display screen 11 may be electrically connected to the circuit board 13 .

The battery 14 is installed inside the housing of the electronic device 100 . Wherein, the battery 14 can be electrically connected to the circuit board 13 , so that the battery 14 can supply power to the electronic device 100 . Wherein, the circuit board 13 may be provided with a power management circuit. The power management circuit is used to distribute the voltage provided by the battery 14 to the various electronic components in the electronic device 100 .

The back cover 15 is used to form the outer contour of the electronic device 100 . The rear cover 15 may be integrally formed. During the molding process of the back cover 15 , structures such as a rear camera hole, a fingerprint identification module mounting hole and the like may be formed on the back cover 15 .

In the embodiment of the present application, a radio frequency (RF, Radio Frequency) circuit is provided on the circuit board 13 . The radio frequency circuit can communicate with network devices (eg, servers, base stations, etc.) or other electronic devices (eg, smart phones, etc.) through a wireless network, so as to complete information transceiving with the network devices or other electronic devices.

In some embodiments, as shown in FIG. 4 , the radio frequency circuit 20 includes a radio frequency transceiver module 21 , a first filter element 22 , a second filter element 23 , a radio frequency switch 24 and an antenna 25 .

The radio frequency transceiver module 21 is used for transmitting and receiving radio frequency signals. The radio frequency transceiver module 21 may be provided with one or more radio frequency transmit ports and one or more radio frequency receive ports. Each of the radio frequency transmitting ports is used for transmitting radio frequency signals in one frequency band, or for transmitting and receiving radio frequency signals in one frequency band. Each of the radio frequency receiving ports is used for receiving radio frequency signals of one frequency band.

In this embodiment of the present application, the radio frequency transceiver module 21 is configured to transmit and receive the first radio frequency signal and the second radio frequency signal. Wherein, the frequency range of the first radio frequency signal includes the first frequency band, and the frequency range of the second radio frequency signal includes the second frequency band. The first frequency band and the second frequency band are different frequency bands.

It should be noted that, when the radio frequency transceiver module 21 transmits radio frequency signals, the radio frequency signals may be transmitted in a frequency division duplex (Frequency Division Duplexing, FDD) mode, or may be transmitted in a time division duplex (Time Division Duplexing, TDD) mode. Among them, in the FDD mode, two independent channels are used to transmit uplink signals and receive downlink signals respectively, and the two channels use different frequencies, thereby ensuring that the uplink signals and the downlink signals do not interfere with each other. In TDD mode, the same channel is used to send uplink signals and receive downlink signals in different time slots, and use different time slots to ensure that the uplink signals and downlink signals do not interfere with each other.

In addition, it should also be noted that when the radio frequency transceiver module 21 transmits radio frequency signals, in addition to transmitting radio frequency signals in the frequency band required for communication, spurious signals are inevitably generated. Among them, the spurious signal is the radio frequency signal that does not have a positive effect on the current communication frequency band. The spurious signals may cause interference to radio frequency signals in other communication frequency bands of the electronic equipment.

Therefore, the first radio frequency signal transmitted by the radio frequency transceiver module 21 may include radio frequency signals of other frequencies in addition to the radio frequency signals of the first frequency band. The second radio frequency signal transmitted by the radio frequency transceiver module 21 may include, in addition to the radio frequency signal of the second frequency band, radio frequency signals of other frequency ranges.

The first filter element 22 is coupled to the radio frequency transceiver module 21 . The first filter element 22 is used for filtering. In the embodiment of the present application, the first filter element 22 is used to filter out the first spurious signal in the first radio frequency signal. Wherein, the frequency range of the first spurious signal includes the second frequency band. That is, the first filter element 22 can filter out spurious signals whose frequency range is the second frequency band in the first radio frequency signal.

The second filter element 23 is coupled to the radio frequency transceiver module 21 . The second filter element 23 is used for filtering. In the embodiment of the present application, the second filter element 23 is used to filter out the second spurious signal in the second radio frequency signal. Wherein, the frequency range of the second spurious signal includes the first frequency band. That is, the second filter element 23 can filter out spurious signals whose frequency range is the first frequency band in the second radio frequency signal.

The radio frequency switch 24 is respectively coupled to the first filter element 22 and the second filter element 23 . The RF switch 24 can turn on the first filter element 22 and the second filter element 23 at the same time. Thus, the radio frequency switch 24 can implement carrier aggregation of the first radio frequency signal and the second radio frequency signal.

Antenna 25 is coupled to the radio frequency switch. The antenna 25 is used to transmit the carrier-aggregated signal of the first radio frequency signal and the second radio frequency signal to the outside world, and to receive the radio frequency signal from the outside world.

Therefore, the radio frequency transceiver module 21 , the first filter element 22 , the radio frequency switch 24 , and the antenna 25 form a first signal path, which can realize the transmission and reception of the first radio frequency signal. The radio frequency transceiver module 21 , the second filter element 23 , the radio frequency switch 24 , and the antenna 25 form a second signal path, which can realize the transmission and reception of the second radio frequency signal.

In the embodiment of the present application, when the first radio frequency signal and the second radio frequency signal sent and received by the radio frequency transceiver module include signal components of the same frequency, the first radio frequency signal can be filtered by filtering elements in different signal paths, respectively. and carrier aggregation of the second radio frequency signal, so that the diversity of the carrier aggregation of the radio frequency signal by the electronic device can be improved.

In some embodiments, as shown in FIG. 5 , the radio frequency transceiver module 21 includes a first port 211 and a second port 212 .

The first port 211 is used to send and receive the first radio frequency signal. Wherein, the first port 211 may include two sub-ports. When the radio frequency transceiver module 21 uses the FDD mode to transmit and receive the first radio frequency signal, one of the sub-ports is used for transmitting the first radio frequency signal, and the other sub-port is used for receiving the first radio frequency signal.

The second port 212 is used for receiving and sending the second radio frequency signal. Wherein, the second port 212 may also include two sub-ports. When the radio frequency transceiver module 21 uses the FDD mode to transmit and receive the second radio frequency signal, one of the sub-ports is used for transmitting the second radio frequency signal, and the other sub-port is used for receiving the second radio frequency signal.

The first filter element 22 is coupled to the first port 211 of the radio frequency transceiver module 21 . The first filter element 22 filters the first radio frequency signal transmitted by the first port 211 . The second filter element 23 is coupled to the second port 212 of the radio frequency transceiver module 21 . The second filter element 23 filters the second radio frequency signal transmitted by the second port 212 .

In some embodiments, as shown in FIG. 5 , the RF switch 24 includes a first input port 241 , a second input port 242 and an output port 243 . The first input port 241 is coupled with the first filter element 22 , the second input port 242 is coupled with the second filter element 23 , and the output port 243 is coupled with the antenna 25 . The RF switch 24 can turn on the first input port 241 and the output port 243 and the second input port 242 and the output port 243 at the same time, thereby realizing carrier aggregation of the first RF signal and the second RF signal.

In some embodiments, the first filter element 22 includes a first notch filter. The second filter element 23 includes a second notch filter.

In some embodiments, the radio frequency transceiver module 21 transmits and receives the first radio frequency signal in a frequency division duplex (FDD) mode. That is, the frequency at which the radio frequency transceiver module 21 transmits the first radio frequency signal is different from the frequency at which the first radio frequency signal is received.

Wherein, the frequency range of the first radio frequency signal further includes a third frequency band. The highest frequency of the third frequency band is lower than the lowest frequency of the first frequency band. That is, the frequency range of the third frequency band does not overlap with the frequency range of the first frequency band.

The radio frequency transceiver module 21 transmits the radio frequency signal of the third frequency band and receives the radio frequency signal of the first frequency band in a frequency division duplex (FDD) mode.

In some embodiments, the first radio frequency signal is a radio frequency signal of a B7 (Band 7) frequency band. The frequency range of the first radio frequency signal includes the first frequency band and the third frequency band. Wherein, the third frequency band includes 2500MHz to 2570MHz, and the first frequency band includes 2620MHz to 2690MHz. That is, when the radio frequency transceiver module 21 transmits the first radio frequency signal, the frequency range of the transmitted radio frequency signal includes 2500MHz to 2570MHz. When the radio frequency transceiver module 21 receives the first radio frequency signal, the frequency range of the received radio frequency signal includes 2620MHz to 2690MHz.

It should be noted that when the radio frequency transceiver module 21 transmits the first radio frequency signal, the transmitted radio frequency signal may also include signals of other frequencies, for example, may also include radio frequency signals with a frequency greater than 2570 MHz.

In some embodiments, as shown in FIG. 6 , the radio frequency circuit 20 further includes a third filter element 26 . The third filter element 26 is connected to the radio frequency transceiver module 21 and the first filter element 22 respectively. At this time, the first filter element 22 is coupled with the radio frequency transceiver module 21 through the third filter element 26 .

The third filter element 26 is also used for filtering the first radio frequency signal transmitted by the radio frequency transceiver module 21 . For example, the third filter element 26 may also be used to filter out the first spurious signal in the first radio frequency signal. At this time, the third filter element 26 and the first filter element 22 simultaneously filter the first radio frequency signal, so that the filtering effect can be improved.

In some embodiments, the suppression effect of the third filter element 26 on the first spurious signal in the first radio frequency signal may reach 30 dBm, and the first filter element 22 on the first radio frequency signal The suppression effect of the first spurious signal in can reach 70dBm. Therefore, when the third filter element 26 and the first filter element 22 filter simultaneously, the suppression effect on the first spurious signal in the first radio frequency signal can reach 100 dBm. Wherein, the frequency range of the first spurious signal includes the second frequency band.

In some embodiments, the third filter element 26 comprises a duplexer.

In some embodiments, the radio frequency transceiver module 21 transmits and receives the second radio frequency signal in a time division duplex (TDD) mode. That is, the radio frequency transceiver module 21 transmits the second radio frequency signal and receives the second radio frequency signal in different time slots, respectively.

In some embodiments, the second radio frequency signal is a radio frequency signal of a B41 (Band 41) frequency band. It should be noted that, in the embodiments of the present application, the frequency range of the B41 frequency band is redefined. Among them, the B41 frequency band includes the second frequency band. The frequency range of the second frequency band includes 2570MHz to 2620MHz. That is, the frequency range when the radio frequency transceiver module 21 transmits the second radio frequency signal includes 2570MHz to 2620MHz, and the frequency range when the radio frequency transceiver module 21 receives the second radio frequency signal also includes 2570MHz to 2620MHz.

It should be noted that when the radio frequency transceiver module 21 transmits the second radio frequency signal, the transmitted radio frequency signal may also include signals of other frequencies, for example, may also include radio frequency signals with a frequency greater than 2620 MHz.

In some embodiments, as shown in FIG. 6 , the radio frequency circuit 20 further includes a fourth filter element 27 . The fourth filter element 27 is connected to the radio frequency transceiver module 21 and the second filter element 23 respectively. At this time, the second filter element 23 is coupled with the radio frequency transceiver module 21 through the fourth filter element 27 .

The fourth filter element 27 is also used for filtering the second radio frequency signal transmitted by the radio frequency transceiver module 21 . For example, the fourth filter element 27 may also be used to filter out the second spurious signal in the second radio frequency signal. At this time, the fourth filter element 27 and the second filter element 23 simultaneously filter the second radio frequency signal, so that the filtering effect can be improved.

In some embodiments, the suppression effect of the fourth filter element 27 on the second spurious signal in the second radio frequency signal can reach 30 dBm, and the second filter element 23 can suppress the second radio frequency signal The suppression effect of the first spurious signal can reach 70dBm. Therefore, when the fourth filter element 27 and the second filter element 23 filter simultaneously, the suppression effect on the second spurious signal in the second radio frequency signal can reach 100 dBm. Wherein, the frequency range of the second spurious signal includes the first frequency band.

In some embodiments, the fourth filter element 27 comprises a filter.

In some embodiments, referring to FIG. 7 and FIG. 8 at the same time, the first port 211 of the radio frequency transceiver module 21 is used to transmit and receive radio frequency signals in the B7 frequency band. Wherein, the frequency range of the radio frequency signal transmitted by the first port 211 includes 2500MHz-2570MHz, and the frequency range of the received radio frequency signal includes 2620MHz-2690MHz. The second port 212 of the radio frequency transceiver module 21 is used for transmitting and receiving radio frequency signals in the B41 frequency band. Wherein, the frequency range of the radio frequency signal transmitted by the second port 212 includes 2570MHz-2620MHz, and the frequency range of the received radio frequency signal also includes 2570MHz-2620MHz.

Wherein, when the first port 211 transmits the radio frequency signal in the B7 frequency band, the frequency range of the transmitted radio frequency signal includes 2500MHz-2570MHz, and the transmitted radio frequency signal includes spurious signals in the frequency range of 2570MHz-2620MHz. When the duplexer 26 performs filtering, the suppression effect on spurious signals of 2570MHz-2620MHz can reach 30dBm. When the first notch filter 22 performs filtering, the suppression effect on spurious signals of 2570MHz-2620MHz can reach 70dBm. Therefore, in the radio frequency signal finally transmitted to the outside world, the signal strength of the spurious signal of 2570MHz-2620MHz is below -100dBm. At this time, the signal strength of the 2570MHz-2620MHz spurious signal is very small, which will not cause interference to the second port 212 receiving the radio frequency signal of the B41 frequency band, or cause little interference to the reception of the radio frequency signal of the B41 frequency band.

When the second port 212 transmits the radio frequency signal of the B41 frequency band, the frequency range of the transmitted radio frequency signal includes 2570MHz-2620MHz, and the transmitted radio frequency signal includes spurious signals in the frequency range of 2620MHz-2690MHz. When the filter 27 performs filtering, the suppression effect on the spurious signals of 2620MHz-2690MHz can reach 30dBm. When the second notch filter 23 performs filtering, the suppression effect on spurious signals of 2620MHz-2690MHz can reach 70dBm. Therefore, in the radio frequency signal finally transmitted to the outside world, the signal strength of the spurious signal of 2620MHz-2690MHz is below -100dBm. At this time, the signal strength of the spurious signal of 2620MHz-2690MHz is very small, which will not cause interference to the first port receiving the radio frequency signal of the B7 frequency band, or cause little interference to the receiving of the radio frequency signal of the B7 frequency band.

Therefore, in the embodiment of the present application, when the first radio frequency signal and the second radio frequency signal transmitted and received by the radio frequency transceiver module include signal components of the same frequency, filtering is performed by filtering elements in different signal paths, not only the first radio frequency signal can be realized. The carrier aggregation of the first radio frequency signal and the second radio frequency signal can avoid mutual interference between the first radio frequency signal and the second radio frequency signal, so that the diversity of the carrier aggregation of the radio frequency signal by the electronic device can be improved.

The radio frequency circuit and the electronic device provided by the embodiments of the present application are described in detail above. The principles and implementations of the present application are described herein by using specific examples, and the descriptions of the above embodiments are only used to help the understanding of the present application. At the same time, for those skilled in the art, according to the idea of the present application, there will be changes in the specific embodiments and application scope. To sum up, the content of this specification should not be construed as a limitation to the present application.

Claims (11)

1. A radio frequency circuit, comprising:

the radio frequency transceiving module is used for transceiving a first radio frequency signal and a second radio frequency signal, wherein the frequency range of the first radio frequency signal comprises 2500MHz to 2690MHz, and the frequency range of the second radio frequency signal comprises 2570MHz to 2690 MHz;

the first filtering element is coupled with the radio frequency transceiving module and is used for filtering stray signals with a frequency range of 2570MHz to 2620MHz in the first radio frequency signal;

the second filtering element is coupled with the radio frequency transceiving module and is used for filtering stray signals with a frequency range of 2620MHz to 2690MHz in the second radio frequency signals;

the radio frequency switch is respectively coupled with the first filtering element and the second filtering element and is used for realizing carrier aggregation of the first radio frequency signal and the second radio frequency signal;

an antenna coupled with the radio frequency switch.

2. The RF circuit of claim 1, wherein the RF transceiver module comprises a first port and a second port, the first port is configured to transceive the first RF signal, and the second port is configured to transceive the second RF signal;

the first filtering element is coupled to the first port of the radio frequency transceiver module, and the second filtering element is coupled to the second port of the radio frequency transceiver module.

3. The radio frequency circuit of claim 1, wherein the radio frequency switch comprises a first input port, a second input port, and an output port;

the first input port is coupled to the first filter element, the second input port is coupled to the second filter element, and the output port is coupled to the antenna.

4. A radio frequency circuit according to any of claims 1 to 3, wherein the first filter element comprises a first trap and the second filter element comprises a second trap.

5. The RF circuit according to any of claims 1 to 3, wherein the RF transceiving module is configured to transceive the first RF signal via a frequency division duplex mode.

6. The RF circuit of claim 5, further comprising a third filter element, wherein the third filter element is connected to the RF transceiver module and the first filter element respectively.

7. The radio frequency circuit of claim 6, wherein the third filtering element comprises a duplexer.

8. The RF circuit according to any of claims 1 to 3, wherein the RF transceiving module is configured to transceive the second RF signal via a time division duplex mode.

9. The radio frequency circuit according to claim 8, further comprising a fourth filter element, wherein the fourth filter element is connected to the radio frequency transceiver module and the second filter element respectively.

10. The radio frequency circuit of claim 9, wherein the fourth filtering element comprises a filter.

11. An electronic device comprising a housing and a circuit board mounted inside the housing, the circuit board having a radio frequency circuit disposed thereon, the radio frequency circuit being as claimed in any one of claims 1 to 10.

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