CN110546908B

CN110546908B - Radio frequency circuit, antenna device and electronic equipment

Info

Publication number: CN110546908B
Application number: CN201780089915.6A
Authority: CN
Inventors: 丛明; 冯斌
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2017-05-10
Filing date: 2017-05-10
Publication date: 2022-03-01
Anticipated expiration: 2037-05-10
Also published as: WO2018205174A1; CN110546908A

Abstract

The present invention provides a radio frequency circuit, an antenna device and electronic equipment. The radio frequency circuit includes a front-end module, a radio frequency switch module, a first combiner module and a second combiner, the front-end module and the radio frequency switch module. The radio frequency switch module is respectively connected with the first combiner module and the second combiner.

Description

Radio frequency circuit, antenna device and electronic equipment

Technical Field

The present invention relates to the field of communications technologies, and in particular, to a radio frequency circuit, an antenna apparatus, and an electronic device.

Background

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

Radio frequency signals that can be supported by a mobile terminal 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 respectively comprise a plurality of sub-frequency band signals. Each sub-band signal needs to be transmitted to the outside world via an antenna.

Thus, a Carrier Aggregation (CA) technique has been produced. Through carrier aggregation, a plurality of sub-frequency band signals can be aggregated together to improve the uplink and downlink transmission rate of the network.

Currently, the frequency resources of the various communication markets around the world are different from each other. Communication operators in different regions have different communication spectrum allocations, so that different frequency band combination requirements of carrier aggregation exist. However, the frequency band for aggregation in the current carrier aggregation is single, and the diversity is lacking, so that the above requirements cannot be met.

Disclosure of the invention

Technical problem

The embodiment of the invention provides a radio frequency circuit, an antenna device and electronic equipment, which can improve the diversity of carrier aggregation of radio frequency signals by the electronic equipment.

Solution to the problem

Technical solution

The embodiment of the invention provides a radio frequency circuit, which comprises a front-end module, a radio frequency switch module, a first combiner module and a second combiner, wherein the front-end module is connected with the radio frequency switch module;

when the radio frequency switch module is connected with the first combiner module and the second combiner, transmitting the high-frequency signal and the intermediate-frequency signal provided by the front-end module to the first combiner module for carrier aggregation to form a first aggregation signal, and transmitting the first aggregation signal and the low-frequency signal to the second combiner for carrier aggregation;

when the radio frequency switch module is disconnected with the first combiner module and is connected with the second combiner, one of the high-frequency signal and the intermediate-frequency signal and the low-frequency signal are sent to the second combiner for carrier aggregation.

The embodiment of the invention provides an antenna device which comprises the radio frequency circuit.

The embodiment of the invention provides electronic equipment which comprises a shell and a circuit board, wherein the circuit board is arranged in the shell, and a radio frequency circuit is arranged on the circuit board and is the radio frequency circuit.

Advantageous effects of the invention

Advantageous effects

Brief description of the drawings

Drawings

Fig. 1 is an exploded schematic view of an electronic device according to an embodiment of the present invention.

Fig. 2 is a schematic structural diagram of an electronic device according to an embodiment of the present invention.

Fig. 3 is a schematic diagram of a first structure of a radio frequency circuit according to an embodiment of the present invention.

Fig. 4 is a schematic diagram of a second structure of the rf circuit according to the embodiment of the present invention.

Fig. 5 is a schematic diagram of a partial structure of a radio frequency circuit according to an embodiment of the present invention.

Fig. 6 is a schematic structural diagram of a radio frequency switch module of a radio frequency circuit according to an embodiment of the present invention.

Fig. 7 is a schematic diagram of a second structure of a radio frequency switch module of a radio frequency circuit according to an embodiment of the present invention.

Fig. 8 is a schematic structural diagram of an electronic device according to an embodiment of the present invention.

Best mode for carrying out the invention

The technical solution 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. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. 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 invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

Referring to fig. 1 and fig. 2, an embodiment of the invention provides an electronic device. The electronic device can be a smart phone, a tablet computer and the like. Referring to fig. 1 and 2, the electronic device 100 includes a cover plate 101, a display screen 102, a circuit board 103, a battery 104, and a housing 105.

Wherein the cover plate 101 is mounted to the display screen 102 to cover the display screen 102. The cover plate 101 may be a transparent glass cover plate. In some embodiments, the cover plate 101 may be a glass cover plate made of a material such as sapphire.

The display screen 102 is mounted on the housing 105 to form a display surface of the electronic device 100. The display screen 102 may include a display area 102A and a non-display area 102B. The display area 102A is used to display information such as images and texts. The non-display area 102B does not display information. The bottom of the non-display area 102B may be provided with functional elements such as a fingerprint module, a touch circuit, and the like.

The circuit board 103 is mounted inside the housing 105. The circuit board 103 may be a motherboard of the electronic device 100. Functional components such as a camera, a proximity sensor, and a processor may be integrated on the circuit board 103. Meanwhile, the display screen 102 may be electrically connected to the circuit board 103.

In some embodiments, Radio Frequency (RF) circuitry is disposed on the circuit board 103. The radio frequency circuit can communicate with a network device (e.g., a server, a base station, etc.) or other electronic devices (e.g., a smart phone, etc.) through a wireless network to complete information transceiving with the network device or other electronic devices.

In some embodiments, as shown in fig. 3, the rf circuit 200 includes a front-end module 21, an rf switch module 22, a first combiner module 23, a second combiner 24, and an antenna 25. The front-end module 21 is connected to the rf switch module 22, and the rf switch module 22 is connected to the first combiner module 23 and the second combiner module 24, respectively.

When the rf switch module 22 is connected to the first combiner module 23 and the second combiner 24, the high frequency signal and the intermediate frequency signal provided by the front end module 21 are transmitted to the first combiner module 23 for carrier aggregation to form a first aggregation signal, and the first aggregation signal and the low frequency signal are transmitted to the second combiner 24 for carrier aggregation. When the rf switch module 22 is disconnected from the first combiner module 23 and connected to the second combiner 24, one of the high frequency signal and the intermediate frequency signal and the low frequency signal are transmitted to the second combiner 24 for carrier aggregation.

In some embodiments, referring to fig. 4, the front-end module 21 includes a radio frequency transceiver 211, a low frequency amplifier component 212, an intermediate frequency amplifier component 213, a high frequency amplifier component 214, a low frequency filter component 215, an intermediate frequency filter component 216, and a high frequency filter component 217.

Wherein, the rf transceiver 211, the lf amplifier module 212 and the lf filter module 215 are connected in sequence. The rf transceiver 211, the if amplifier module 213 and the if filter module 216 are connected in sequence. The rf transceiver 211, the rf amplifier 214 and the rf filter 217 are connected in sequence. The high frequency filter component 217 and the intermediate frequency filter component 216 are respectively connected to the third switch component 223, and the low frequency filter component 215 is connected to the first switch component 221.

In practical applications, the low frequency amplifier assembly 212 includes a low frequency amplifier 2121 and a low frequency gate 2122. The low frequency filtering component 215 includes a plurality of first filters 2151. The first filter 2151 is a duplexer. The low frequency gate 2122 has a low frequency port having at least two fourth sub-ports, for example, in the present embodiment, the low frequency port has a fourth sub-port L1, a fourth sub-port L2, a fourth sub-port L3 and a fourth sub-port L4, and a first input port L0. The low frequency gate 2122 can selectively connect the first input port L0 with one of the at least two fourth sub-ports L1/L2/L3/L4. Each fourth sub-port is connected to a first filter 2151.

In practical applications, the if amplifier assembly 213 includes an if amplifier 2131 and an if gate 2132. The if filtering component 216 includes a plurality of second filters 2161. The second filter 2161 is a duplexer. The if gate 2132 has an if port with a first subport M4, a second subport M1, a second subport M2 and a second subport M3, and a second input port M0. The if gate 2132 can selectively connect the second input port M0 with one of the multiple sub-ports of the if port. The first sub-port M4 is connected to a second filter 2161, the second sub-port M1 is connected to a second filter 2161, and the second sub-port M2 is connected to a second filter 2161. Each sub-port of the if port is connected to only one second filter 2161.

The high frequency amplifier module 214 includes a high frequency amplifier 2141 and a high frequency gate 2142. The high frequency filtering component 217 includes a plurality of third filters 2171. The third filter 2171 is a duplexer. The high frequency gate 2142 has a high frequency port and a third input port H0, wherein the high frequency port includes at least two third sub-ports, for example, the at least two third sub-ports are a third sub-port H1, a third sub-port H2, a third sub-port H3 and a third sub-port H4. The high frequency gate 2142 can selectively connect the third input port H0 with one of the at least two third sub-ports H1/H2/H3/H4. The at least two third sub-ports H1/H2/H3/H4 are respectively connected to the plurality of third filters 2171 in one-to-one correspondence.

Referring to fig. 5 and fig. 6, in some embodiments, the rf switch module 22 includes a first switch element 221, a second switch element 222, a third switch element 223, and a fourth switch element 224.

Each fourth sub-port of the low frequency gate 2122 of the front-end module 21 is connected to the first switch element 221 through a first filter 2151, and the first switch element 221 is connected to the second combiner 24.

Each of the first sub-port M4, the second sub-port M1, and the second sub-port M2 of the if gate 2132 of the front end module 21 is connected to the third switch element 223 through a second filter 2161.

Each third sub-port of the high frequency gate 2142 of the front end module 21 is connected to the third switch element 223 through a third filter 2171, and the third switch element 223 is connected to the first combiner module 23 and the second combiner 24, respectively.

Each third sub-port of the high frequency gate 2142 of the front end module 21 is connected to the fourth switch element 224 through a third filter 2171, and the fourth switch element 224 is connected to the first combiner module 23.

In some embodiments, the first combiner module 23 includes a third combiner 231 and a fourth combiner 232.

The first switch module 221 includes a plurality of second input sub-ports D1/D2/D3/D4 and a second output sub-port D0, wherein the plurality of second input sub-ports D1/D2/D3/D4 may be the second input sub-port D1, the second input sub-port D2, the second input sub-port D3 and the second input sub-port D4. The fourth sub-port L1/L2/L3/L4 of the low frequency port is connected with the second input sub-port D1/D2/D3/D4 in a one-to-one correspondence, and the first switch module 221 is configured to connect one of the plurality of second input sub-ports D1/D2/D3/D4 with the second output sub-port D0. In a specific application, the first switch assembly 221 is a single-pole K-throw switch, where K is the same as the number of second input sub-ports.

The second switch module 222 is respectively connected to the first sub-port M4, the second sub-port M1, the second sub-port M2, the first input terminal of the third combiner 231, and the first input terminal of the fourth combiner 232, and the second switch module 222 selectively connects the first sub-port M4 to the first input terminal of the fourth combiner 232 or connects the second sub-port M1/M2 to the first input terminal of the third combiner 231.

In a specific application, the second switch assembly 222 includes a first single-pole single-throw switch 2221 and a first single-pole N-throw switch 2222. The first single pole single throw switch 2221 has one end F1 connected to the first subport M4 and the other end F0 connected to the first input of the third hybrid 231. The N gate terminals E1/E2 of the first single-pole N-throw switch 2222 are respectively connected to the at least two second sub-ports M1/M2 in a one-to-one correspondence, the fixed terminal E0 of the first single-pole N-throw switch 2222 is connected to the first input terminal of the fourth combiner 232, and the first single-pole N-throw switch 2222 selectively connects one of the at least two second sub-ports M1/M2 to the first input terminal of the fourth combiner 232. In this embodiment, the first single-pole, N-throw switch 2222 is a single-pole, double-throw switch.

The fourth switch assembly 224 is connected to the plurality of third sub-ports H1/H2/H3/H4, the second input of the third combiner 231, and the second input of the fourth combiner 232, respectively. The fourth switching assembly 224 selectively connects one of the plurality of third sub-ports H1/H2/H3/H4 with the second input of the third combiner 231 or the second input of the fourth combiner 232.

In practice, the fourth switch assembly 224 includes a second single pole, M-throw switch 2241 and a third single pole, double throw switch 2242, where M is the number of third sub-ports. M gate terminals B1/B2/B3/B4 of the second single-pole M-throw switch 2241 are respectively connected to the plurality of third sub-ports H1/H2/H3/H4 in a one-to-one correspondence manner, in the embodiment, M is 4, and the M gate terminals are respectively a gate terminal B1, a gate terminal B2, a gate terminal B3 and a gate terminal B4. The gate terminal B1 is connected to the third sub-port H1, the gate terminal B2 is connected to the third sub-port H2, the gate terminal B3 is connected to the third sub-port H3, and the gate terminal B4 is connected to the third sub-port H4. A fixed end B0 of the second single-pole M-throw switch is connected to a fixed end a0 of a third single-pole double-throw switch 2242, and two pass ends a1/a2 of the third single-pole double-throw switch 2242 are connected to the second input end of the third combiner 231 and the second input end of the fourth combiner 232 in a one-to-one correspondence. The gate terminal a1 is connected to the second input terminal of the third combiner 231, and the gate terminal a2 is connected to the second input terminal of the fourth combiner 232.

The third switch module 223 includes a plurality of first input sub-ports and a first output sub-port C0, the plurality of first input sub-ports are respectively connected to the first sub-port M4, at least two second sub-ports M1/M2, at least two third sub-ports H1/H2/H3/H4, the output end of the third combiner 231, and the output end of the fourth combiner 232 in a one-to-one correspondence manner, and the first output sub-port C0 is connected to the first input end of the second combiner 24. The third switching assembly 223 is operable to selectively connect one of the plurality of first input sub-ports C1-C10 with the first output sub-port C0. The number of the first input sub-ports is 10, namely, the first input sub-ports C1-C10. The third switching element 223 is a single-pole, L-throw switch 223, L being a natural number greater than or equal to M + N + 3.

In this embodiment, the first input sub-port C1 of the third switch element 223 is connected to the output of the third combiner 231, the first input sub-port C2 is connected to the output of the fourth combiner 232, the first input sub-port C3 is connected to the second sub-port M1, the first input sub-port C4 is connected to the second sub-port M2, the first input sub-port C5 is connected to the second sub-port M3, and the first input sub-port C6 is connected to the first sub-port M4. The first input sub-port C7 is connected to the third sub-port H1, the first input sub-port C8 is connected to the third sub-port H2, the first input sub-port C9 is connected to the third sub-port H3, and the first input sub-port C10 is connected to the third sub-port H4.

In the present embodiment, the signals in M1-M4 are the first intermediate frequency sub-signal, the second intermediate frequency sub-signal, the third intermediate frequency sub-signal and the fourth intermediate frequency sub-signal of the intermediate frequency signals, respectively. The signals in H1-H4 are the first high frequency sub-signal, the second high frequency sub-signal, the third high frequency sub-signal and the fourth high frequency sub-signal of the high frequency signal, respectively. The signals in the L1-L4 are the first low-frequency sub-signal, the second low-frequency sub-signal, the third low-frequency sub-signal and the fourth low-frequency sub-signal in the intermediate frequency signal, respectively.

When carrier aggregation of the low frequency signal, the high frequency signal, and the intermediate frequency signal is required, for example, when the first intermediate frequency sub-signal, the first high frequency sub-signal, and the first low frequency sub-signal are to be carrier aggregated, the gate terminal B1 of the second single-pole M-throw switch 2241 is connected to the fixed terminal B0, the gate terminal E2 of the first single-pole N-throw switch 2222 is connected to the fixed terminal E0, the first input sub-port C2 and the first output sub-port C0 of the third switch module 223 are connected, and the second input sub-port D1 and the second output sub-port D0 of the first switch module 221 are connected, so that the aggregated signal formed by carrier aggregation of the first intermediate frequency sub-signal and the first high frequency sub-signal in the fourth combiner 232 and the first low frequency sub-signal are carrier aggregated in the second combiner 24.

When carrier aggregation of the low frequency signal and the intermediate frequency signal is required, for example, when the first intermediate frequency sub-signal and the first low frequency sub-signal are carrier aggregated, the first input sub-port C3 of the third switch element 223 is connected to the first output sub-port C0, and the second input sub-port D1 of the first switch element 221 is connected to the second output sub-port D0, so that the first intermediate frequency sub-signal and the first low frequency sub-signal are carrier aggregated in the second combiner 24.

It will be appreciated that in other embodiments, the fourth switch assembly 224 may be implemented using other circuitry, for example, referring to fig. 7, the fourth switch assembly 224 includes a second single pole M-throw switch 2241 and a third single pole M-throw switch 2243. Where M is 4, other values are of course possible. The four gating terminals B1/B2/B3/B4 of the single-pole M-throw switch 2241 are respectively connected with the four third sub-ports H1/H2/H3/H4 in a one-to-one correspondence manner. The four pass terminals G1/G2/G3/G4 of the third single-pole M-throw switch 2241 are connected to the four third sub-ports H1/H2/H3/H4 in a one-to-one correspondence. The third single-pole M-throw switch 2243 and the second single-pole M-throw switch 2241 are both single-pole four-throw switches.

Therefore, by adopting the technical scheme, the low-frequency and medium-frequency signals, the low-frequency and high-frequency signals or the low-frequency, medium-frequency and high-frequency signals are selectively subjected to carrier aggregation, so that the selectivity and diversity of the carrier aggregation can be improved.

Referring to fig. 8, fig. 8 is a schematic structural diagram of an electronic device 100 according to an embodiment of the present invention. The electronic device 100 includes an antenna apparatus 10, a memory 20, a display unit 30, a power supply 40, and a processor 50. Those skilled in the art will appreciate that the configuration of the electronic device 100 shown in fig. 8 does not constitute a limitation of the electronic device 100. Electronic device 100 may include more or fewer components than shown, or some components may be combined, or a different arrangement of components.

The antenna device 10 includes the rf circuit 200 described in any of the above embodiments. The antenna device 10 can communicate with a network device (e.g., a server) or other electronic devices (e.g., a smart phone) through a wireless network, and complete information transceiving with the network device or other electronic devices.

The memory 20 may be used to store applications and data. The memory 20 stores applications containing executable program code. The application programs may constitute various functional modules. The processor 50 executes various functional applications and data processing by running the application programs stored in the memory 20.

The display unit 30 may be used to display information input to the electronic apparatus 100 by a user or information provided to the user and various graphic user interfaces of the electronic apparatus 100. These graphical user interfaces may be made up of graphics, text, icons, video, and any combination thereof. The display unit 30 may include a display panel.

The power supply 40 is used to power the various components of the electronic device 100. In some embodiments, power supply 40 may be logically coupled to processor 50 through a power management system, such that functions to manage charging, discharging, and power consumption management are performed through the power management system.

The processor 50 is the control center of the electronic device 100. The processor 50 connects various parts of the entire electronic device 100 using various interfaces and lines, performs various functions of the electronic device 100 and processes data by running or executing an application program stored in the memory 20 and calling data stored in the memory 20, thereby monitoring the electronic device 100 as a whole.

In addition, the electronic device 100 may further include a camera module, a bluetooth module, and the like, which are not described herein again.

The following disclosure provides many different embodiments or examples for implementing different features of the invention. To simplify the disclosure of the present invention, the components and arrangements of specific examples are described below. Of course, they are merely examples and are not intended to limit the present invention. Furthermore, the present invention 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, the present invention provides examples of various specific processes and materials, but one of ordinary skill in the art may recognize applications of other processes and/or uses of other materials.

Claims

1. A radio frequency circuit comprises a front-end module, a radio frequency switch module, a first combiner module and a second combiner, wherein the front-end module is connected with the radio frequency switch module, and the radio frequency switch module is respectively connected with the first combiner module and the second combiner;

when the radio frequency switch module is disconnected with the first combiner module and is connected with the second combiner, one of the high-frequency signal and the intermediate-frequency signal and the low-frequency signal are sent to the second combiner for carrier aggregation;

the radio frequency switch module comprises a first switch component, a second switch component, a third switch component and a fourth switch component, and the front end module is provided with a low-frequency port, a high-frequency port and a medium-frequency port;

the low-frequency port, the first switch component and the second combiner are sequentially connected;

the intermediate frequency port, the second switch assembly and the first combiner module are sequentially connected;

the high-frequency port, the fourth switch assembly and the first combiner module are sequentially connected;

the third switch component is provided with a plurality of input ports and output ports, the input ports are respectively connected with the intermediate-frequency port, the high-frequency port and the first combiner module, and the output ports are connected with the second combiner, so that the second combiner carries out carrier aggregation on at least one of the intermediate-frequency signal and the high-frequency signal and the low-frequency signal.

2. The radio frequency circuit according to claim 1, wherein the first combiner module comprises a third combiner and a fourth combiner, the second switch element, the third switch element and the fourth switch element are respectively connected to the third combiner and the fourth combiner, and the third switch element is connected to the second combiner;

when the third combiner or the fourth combiner, the second switch component and the fourth switch component are respectively connected, the high-frequency signal and the intermediate-frequency signal are subjected to carrier aggregation to form a first aggregation signal, and the first aggregation signal and the low-frequency signal are sent to the second combiner for carrier aggregation;

when the third combiner and the fourth combiner are disconnected with the second switch component and the fourth switch component, the third switch component sends the high-frequency signal or the intermediate-frequency signal to the second combiner so as to carry out carrier aggregation with the low-frequency signal.

3. The radio frequency circuit of claim 2, wherein the intermediate frequency port has a first sub-port and a second sub-port;

the second switch assembly is respectively connected with the first sub-port, the second sub-port, the first input end of the third combiner and the first input end of the fourth combiner, and selectively connects the first sub-port with the first input end of the fourth combiner or connects the second sub-port with the first input end of the third combiner.

4. The radio frequency circuit of claim 3, wherein the second subport is at least two in number, the second switch assembly comprising a first single pole, single throw switch and a first single pole, N throw switch;

one end of the first single-pole single-throw switch is connected with the first sub-port, and the other end of the first single-pole single-throw switch is connected with the first input end of the third combiner;

the N gating ends of the first single-pole N-throw switch are respectively connected with the at least two second sub-ports in a one-to-one correspondence mode, the fixed end of the first single-pole N-throw switch is connected with the first input end of the fourth combiner, and the first single-pole N-throw switch selectively connects one second sub-port of the at least two second sub-ports with the first input end of the fourth combiner.

5. The radio frequency circuit of claim 3, wherein the high frequency port has at least two third sub-ports;

the fourth switch assembly is respectively connected with the at least two third sub-ports, the second input end of the third combiner and the second input end of the fourth combiner, and selectively connects one of the at least two third sub-ports with the second input end of the third combiner or the second input end of the fourth combiner.

6. The radio frequency circuit of claim 5, wherein the fourth switch assembly comprises a second single-pole, M-throw switch and a third single-pole, double-throw switch, where M is the number of third sub-ports;

the M gating ends of the second single-pole M-throw switch are respectively connected with the at least two third sub-ports in a one-to-one correspondence mode, the fixed end of the second single-pole M-throw switch is connected with the fixed end of the third single-pole double-throw switch, and the two gating ends of the third single-pole double-throw switch are respectively connected with the second input end of the third combiner and the second input end of the fourth combiner in a one-to-one correspondence mode.

7. The radio frequency circuit of claim 4, wherein the high frequency port has at least two third sub-ports;

8. The radio frequency circuit of claim 7, wherein the fourth switch assembly comprises a second single-pole, M-throw switch and a third single-pole, double-throw switch, where M is the number of third sub-ports;

9. The radio frequency circuit of claim 8, wherein the third switching element includes a plurality of first input sub-ports and a first output sub-port;

the plurality of first input sub-ports are respectively connected with the first sub-ports, the at least two second sub-ports, the at least two third sub-ports, the output end of the third combiner and the output end of the fourth combiner in a one-to-one correspondence manner, and the output sub-ports are connected with the first input end of the second combiner;

the third switch component is used for selectively connecting one of the plurality of first input sub-ports with the first output sub-port.

10. The radio frequency circuit of claim 9, wherein the third switching component is a single-pole, L-throw switch, L being a natural number greater than or equal to M + N + 3.

11. The radio frequency circuit of claim 9, wherein the first switch assembly includes a plurality of second input sub-ports and a second output sub-port;

the low-frequency port is provided with at least two fourth sub-ports, each fourth sub-port is respectively connected with one second input sub-port, and the first switch assembly is used for connecting one second input sub-port in the plurality of second input sub-ports with the second output sub-port.

12. The radio frequency circuit of claim 11, wherein the first switch component is a single pole, K-throw switch, where K is the same number as the second input subport.

13. The radio frequency circuit of claim 11, wherein the front-end module comprises a radio frequency transceiver, a low frequency amplifier component, an intermediate frequency amplifier component, a high frequency amplifier component, a low frequency filtering component, an intermediate frequency filtering component, and a high frequency filtering component;

the radio frequency transceiver, the low-frequency amplifier component and the low-frequency filtering component are sequentially connected;

the radio frequency transceiver, the intermediate frequency amplifier assembly and the intermediate frequency filter assembly are sequentially connected;

the radio frequency transceiver, the high-frequency amplifier assembly and the high-frequency filter assembly are sequentially connected;

the high-frequency filtering component and the intermediate-frequency filtering component are respectively connected with the third switch component;

the low-frequency filtering component is connected with the first switch component.

14. The radio frequency circuit of claim 13, wherein the low frequency amplifier component comprises a low frequency amplifier and a low frequency gate;

the low-frequency gate is provided with a first input port and the low-frequency port, and each fourth sub-port of the low-frequency port is connected with the first switch component through the low-frequency filtering component;

the low-frequency gate is used for connecting the first input port with one of a plurality of fourth sub-ports.

15. The rf circuit of claim 14, wherein the low frequency filtering component comprises a plurality of first filters, and each fourth sub-port is connected to the first switch component through a respective first filter.

16. The radio frequency circuit of claim 13, wherein the intermediate frequency amplifier component comprises an intermediate frequency amplifier and an intermediate frequency gate;

the intermediate frequency gate is provided with a second input port and the intermediate frequency port, and a first sub-port and a second sub-port of the intermediate frequency port are respectively connected with the third switch component through the intermediate frequency filtering component;

the intermediate frequency gate is used for selectively connecting the second input port with one of the first sub-port and a fourth sub-port of the second sub-port.

17. The radio frequency circuit of claim 16, wherein the if filter component comprises a plurality of second filters, each of the first and second sub-ports being connected to the third switch component through a respective second filter.

18. An antenna device comprising the radio frequency circuit of claim 1.

19. An electronic device comprising a housing and a circuit board, the circuit board being mounted inside the housing, the circuit board having a radio frequency circuit disposed thereon, the radio frequency circuit being the radio frequency circuit of claim 1.