CN215581153U

CN215581153U - RF Circuits and Electronic Equipment

Info

Publication number: CN215581153U
Application number: CN202122417062.0U
Authority: CN
Inventors: 王翟
Original assignee: Vivo Mobile Communication Co Ltd
Current assignee: Vivo Mobile Communication Co Ltd
Priority date: 2021-10-08
Filing date: 2021-10-08
Publication date: 2022-01-18
Anticipated expiration: 2031-10-08

Abstract

The application discloses radio frequency circuit and electronic equipment belongs to circuit technical field. The radio frequency circuit includes: the antenna comprises a radio frequency transceiver, a first receiving circuit, a second receiving circuit, a first change-over switch, a first filter, a second filter, a first antenna and a second antenna; a first port of the radio frequency transceiver is connected with the output end of the first receiving circuit, and a second port of the radio frequency transceiver is connected with the output end of the second receiving circuit; the input end of the first receiving circuit is connected with the first end of the first change-over switch, the input end of the second receiving circuit is connected with the second end of the first change-over switch, the third end of the first change-over switch is connected with the first antenna through the first filter, and the fourth end of the first change-over switch is connected with the second antenna through the second filter; the third terminal of the first transfer switch may be conducted with the first terminal of the first transfer switch or the second terminal of the first transfer switch, and the fourth terminal of the first transfer switch may be conducted with the second terminal of the first transfer switch or the second terminal of the first transfer switch.

Description

Radio frequency circuit and electronic device

Technical Field

The application belongs to the technical field of circuits, and particularly relates to a radio frequency circuit and electronic equipment.

Background

In the 5G era, mobile data traffic is explosively increased, the number of required frequency spectrums is far ahead of the sum of several generations of mobile communication technologies, and since frequency spectrum resources are limited, more frequency spectrums are aggregated by Carrier Aggregation (CA) technology in the related art to increase bandwidth, a more flexible radio frequency architecture is required to support the requirement. In addition, as shown in fig. 1, the Dual Connectivity (EN _ DC) between the Evolved Universal Terrestrial Radio Access Network and the New air interface can also increase the bandwidth, and is relatively close to a single frequency band CA of Long Term Evolution (LTE), thereby forming an LTE + NR combination.

Fig. 2 shows a conventional diversity module, which can meet CA requirements of 1+3+7, 1+3+40, 1+3+41, etc., and simultaneously support the requirement of NR/LTE 1 multi-Input multi-Output (MIMO) through a 1-path Low Noise Amplifier (LNA). However, since combinations of B1/N1(4 × 4) + B3+ B7, B1+ B3/N3(4 × 4) + B7, B1+ B3+ B7/N7(4 × 4), B1/N1(4 × 4) + B3+ B40, B1+ B3/N3(4 × 4) + B40, B1+ B3+ B40/N40(4 × 4), B1/N1(4 × 4) + B3+ B41, B1+ B3/N3(4 × 4) + B41, and B1+ B3+ B41/N41(4 × 4) are supported in order to balance size, area, cost, etc., the capability of the multi-input multi-output circuit is low.

SUMMERY OF THE UTILITY MODEL

An object of the embodiments of the present application is to provide a radio frequency circuit and an electronic device, which can solve the problem of low CA capability of a mimo circuit in the related art.

In a first aspect, an embodiment of the present application provides a radio frequency circuit, including: the antenna comprises a radio frequency transceiver, a first receiving circuit, a second receiving circuit, a first change-over switch, a first filter, a second filter, a first antenna and a second antenna;

the radio frequency transceiver is provided with a first port and a second port;

the first port is connected with the output end of the first receiving circuit, and the second port is connected with the output end of the second receiving circuit;

the input end of the first receiving circuit is connected with the first end of the first change-over switch, the input end of the second receiving circuit is connected with the second end of the first change-over switch, the third end of the first change-over switch is connected with the first antenna through the first filter, and the fourth end of the first change-over switch is connected with the second antenna through the second filter;

the third terminal of the first transfer switch may be conducted with the first terminal of the first transfer switch or the second terminal of the first transfer switch, and the fourth terminal of the first transfer switch may be conducted with the second terminal of the first transfer switch or the second terminal of the first transfer switch.

In a second aspect, embodiments of the present application provide an electronic device including the radio frequency circuit as in the first aspect.

In the embodiment of the application, a double-pole double-throw first change-over switch is integrated in the radio frequency circuit, and is respectively connected with the input end of the first receiving circuit, the input end of the second receiving circuit, the first filter and the second filter, so that flexible configuration inside the radio frequency circuit is realized, more CA or MIMO capabilities are supported, channel performance is optimized, and module capability is improved. Specifically, on one hand, 4CA scenarios such as B1+ B3+ B7+ B40 can be supported in a non-MIMO state, which meets the requirements of some specific operators; on the other hand, the first change-over switch can also support the combination of 4 × 4MIMO and the like of B1/N1+ B3/N3, thereby meeting the requirements of many operators for MIMO.

Drawings

Fig. 1 is a diagram illustrating a single frequency band CA in the related art;

FIG. 2 is a schematic diagram of a related art RF circuit;

FIG. 3 is a schematic diagram of an embodiment of a RF circuit;

FIG. 4 is a second schematic diagram of an RF circuit according to an embodiment of the present invention;

fig. 5 is a third schematic diagram of an rf circuit according to an embodiment of the present application;

FIG. 6 is a fourth schematic diagram of an embodiment of the present invention;

FIG. 7 is a fifth exemplary schematic diagram of an RF circuit according to an embodiment of the present application;

FIG. 8 is a sixth schematic diagram of an RF circuit according to an embodiment of the present application;

fig. 9 is a schematic block diagram of an electronic device according to an embodiment of the present application.

Detailed Description

The technical solutions in the embodiments of the present application will be described clearly below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some, but not all, embodiments of the present application. All other embodiments that can be derived by one of ordinary skill in the art from the embodiments given herein are intended to be within the scope of the present disclosure.

The terms first, second and the like in the description and in the claims of the present application are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application are capable of operation in sequences other than those illustrated or described herein. In addition, "and/or" in the specification and claims means at least one of connected objects, a character "/" generally means that a preceding and succeeding related objects are in an "or" relationship.

The radio frequency circuit and the electronic device provided by the embodiments of the present application are described in detail below with reference to the accompanying drawings through specific embodiments and application scenarios thereof.

The embodiment of the present application provides a radio frequency circuit 30, as shown in fig. 3 to 8, the radio frequency circuit 30 includes:

a radio frequency transceiver 32, a first receiving circuit 3602, a second receiving circuit 3604, a first switch 3610, a first filter B40 SAW1, a second filter B1 SAW2, a first antenna 3402, and a second antenna 3404;

the radio frequency transceiver 32 is provided with a first port and a second port;

a first port is connected to an output terminal of the first receiving circuit 3602, and a second port is connected to an output terminal of the second receiving circuit 3604;

an input end of the first receiving circuit 3602 is connected to a first end of the first switch 3610, an input end of the second receiving circuit 3604 is connected to a second end of the first switch 3610, a third end of the first switch 3610 is connected to the first antenna 3402 through the first filter B40 SAW1, and a fourth end of the first switch 3610 is connected to the second antenna 3404 through the second filter B1 SAW 2;

a third terminal of the first switch 3610 may be conducted with a first terminal of the first switch 3610 or a second terminal of the first switch 3610, and a fourth terminal of the first switch 3610 may be conducted with a second terminal of the first switch 3610 or a second terminal of the first switch 3610.

In this embodiment, a double-pole double-throw first switch 3610 is integrated in the rf circuit 30, and is connected to the input terminal of the first receiver circuit 3602, the input terminal of the second receiver circuit 3604, the first filter B40 SAW1, and the second filter B1 SAW2, respectively. The first filter B40 SAW1 is used for filtering out radio frequency signals outside the B40 frequency band, and the second filter B1 SAW2 is used for filtering out radio frequency signals outside the B1 frequency band.

By the above mode, flexible configuration inside the radio frequency circuit 30 is realized, lower cost is increased, more CA or MIMO capabilities are supported, channel performance is optimized, and module capability is improved. Specifically, on one hand, 4CA scenarios such as B1+ B3+ B7+ B40 can be supported in a non-MIMO state, which meets the requirements of some specific operators; on the other hand, the first switch 3610 may also support 4 × 4MIMO and other combinations of B1/N1+ B3/N3, so as to meet the MIMO requirements of many operators.

Further, in an embodiment of the present application, as shown in fig. 3 to 8, the radio frequency circuit 30 further includes: a third filter B41 SAW1, a fourth filter B7 SAW 1; the first receiving circuit 3602 includes a first amplifier LNA1 and a first switch K1, a first port is connected to a first end of the first switch K1 through a first amplifier LNA1, a second end of the first switch K1 is connected to a third filter B41 SAW1, a third end of the first switch K1 is connected to a fourth filter B7 SAW1, and a fourth end of the first switch K1 is connected to a first end of a first switch 3610; the first terminal of the first switch K1 can be connected to the second terminal of the first switch K1, the third terminal of the first switch K1, or the fourth terminal of the first switch K1.

The third filter B41 SAW1 is used for filtering out radio frequency signals outside the B41 frequency band, and the fourth filter B7 SAW1 is used for filtering out radio frequency signals outside the B7 frequency band.

In this embodiment, the first receiver circuit 3602 is used to support the operation of the third filter B41 SAW1 and the fourth filter B7 SAW 1. Specifically, the first port of the radio frequency transceiver 32 is connected to the first end of a first switch K1 through a first amplifier LNA1, the second end of the first switch K1 is connected to a third filter B41 SAW1, the third end of the first switch K1 is connected to a fourth filter B7 SAW1, the fourth end of the first switch K1 is connected to the first end of a first switch 3610, and the first end of the first switch K1 is conducted to one of the second end, the third end and the fourth end thereof, so that a combination of multiple CAs or MIMO is realized, and more CA or MIMO capabilities are supported.

Further, in one embodiment of the present application, as shown in fig. 3 to 8, the radio frequency transceiver 32 is provided with a third port; the radio frequency circuit 30 further includes: a third receiver circuit 3606, a fifth filter B1 SAW1, a sixth filter B34 SAW 1; an output terminal of the third receiver circuit 3606 is connected to the third port, and an input terminal of the third receiver circuit 3606 is connected to the fifth filter B1 SAW1 and the sixth filter B34 SAW1, respectively.

The fifth filter B1 SAW1 is used for filtering out radio frequency signals outside the B1 frequency band, and the sixth filter B34 SAW1 is used for filtering out radio frequency signals outside the B34 frequency band.

In this embodiment, the third receiver circuit 3606 is used to support the operation of the fifth filter B1 SAW1 and the sixth filter B34 SAW 1. Specifically, the third port of the radio frequency transceiver 32 may be connected to the fifth filter B1 SAW1 and the sixth filter B34 SAW1 through the third receiving circuit 3606, so that a combination of multiple CAs can be implemented, and thus, the CA usage requirements can be met.

Further, in one embodiment of the present application, as shown in fig. 3 to 8, the radio frequency transceiver 32 is provided with a fourth port; the radio frequency circuit 30 further includes: a fourth receiving circuit 3608, a seventh filter B3 SAW1, an eighth filter B39 SAW 1; an output terminal of the fourth receiver circuit 3608 is connected to the fourth port, and an input terminal of the fourth receiver circuit 3608 is connected to the seventh filter B3 SAW1 and the eighth filter B39 SAW1, respectively.

The seventh filter B3 SAW1 is used for filtering out radio frequency signals outside the B3 frequency band, and the eighth filter B39 SAW1 is used for filtering out radio frequency signals outside the B39 frequency band.

In this embodiment, the fourth receiver circuit 3608 is used to support the operation of the seventh filter B3 SAW1 and the eighth filter B39 SAW 1. Specifically, the third port of the radio frequency transceiver 32 may be connected to the seventh filter B3 SAW1 and the eighth filter B39 SAW1 through the fourth receiving circuit 3608, so that a combination of multiple CAs can be implemented, and thus, the CA usage requirements can be met.

Further, in an embodiment of the present application, as shown in fig. 3 to 8, the third receiving circuit 3606 includes a second amplifier LNA2 and a second switch K2, a third port is connected to a first terminal of the second switch K2 through the second amplifier LNA2, a second terminal of the second switch K2 is connected to the fifth filter B1 SAW1, and a third terminal of the second switch K2 is connected to the sixth filter B34 SAW 1; the fourth receiving circuit 3608 includes a third amplifier LNA3 and a third switch K3, a fourth port is connected to a first end of the third switch K3 through the third amplifier LNA3, a second end of the third switch K3 is connected to a seventh filter B3 SAW1, and a third end of the third switch K3 is connected to an eighth filter B39 SAW 1; the first terminal of the second switch K2 can be connected to the second terminal of the second switch K2 or the third terminal of the second switch K2, and the first terminal of the third switch K3 can be connected to the second terminal of the third switch K3 or the third terminal of the third switch K3.

In this embodiment, the third port of the rf transceiver 32 is connected to the first terminal of the second switch K2 through the second amplifier LNA2, the second terminal of the second switch K2 is connected to the fifth filter B1 SAW1, the third terminal of the second switch K2 is connected to the sixth filter B34 SAW1, and the first terminal of the second switch K2 is conductive to one of the second terminal and the third terminal thereof.

The fourth port of the radio frequency transceiver 32 is connected to the first terminal of a third switch K3 through a third amplifier LNA3, the second terminal of the third switch K3 is connected to a seventh filter B3 SAW1, the third terminal of the third switch K3 is connected to an eighth filter B39 SAW1, and the first terminal of the third switch K3 is conductive to one of the second terminal and the third terminal thereof.

By the mode, the combination of various CAs can be realized, so that the use requirement of the CA can be met.

Further, in an embodiment of the present application, as shown in fig. 3 to 8, the radio frequency circuit 30 further includes: an antenna frequency band control switch 3612; an input end of the antenna frequency band control switch 3612 is connected to the first antenna 3402, and an output end of the antenna frequency band control switch 3612 is connected to the first filter B40 SAW1, the third filter B41 SAW1, the fourth filter B7 SAW1, the fifth filter B1 SAW1, the sixth filter B34 SAW1, the seventh filter B3 SAW1, and the eighth filter B39 SAW1, respectively; the antenna band control switch 3612 may control the first antenna 3402 and at least one of the first filter B40 SAW1, the third filter B41 SAW1, the fourth filter B7 SAW1, the fifth filter B1 SAW1, the sixth filter B34 SAW1, the seventh filter B3 SAW1, and the eighth filter B39 SAW1 to be turned on.

In this embodiment, the antenna frequency band control switch 3612 is turned on in different ways, so that a combination of multiple CAs is realized, and more CA capabilities are supported.

It should be noted that the fifth filter B1 SAW1 and the seventh filter B3 SAW1 share a contact of an antenna frequency band control switch, that is, carrier aggregation of a B1 frequency band radio frequency signal and a B3 frequency band radio frequency signal is realized; the sixth filter B34 SAW1 and the eighth filter B39 SAW1 share the moving contact of an antenna frequency band control switch, that is, carrier aggregation of B34 frequency band radio frequency signals and B39 frequency band radio frequency signals is realized.

Further, in an embodiment of the present application, as shown in fig. 3 to 8, the radio frequency circuit further includes: a fifth switch 38, a ninth filter B3 SAW2, a tenth filter B7 SAW2, an eleventh filter B40 SAW2, and a twelfth filter B41 SAW 2; an input end of the fifth switch 38 is connected to the second antenna 3404, and a plurality of output ends of the fifth switch 38 are connected to the second filter B1 SAW2, the ninth filter B3 SAW2, the tenth filter B7 SAW2, the eleventh filter B40 SAW2, and the twelfth filter B41 SAW2, respectively; wherein an input terminal of the fifth switch 38 is conductive with one of the output terminals of the fifth switch 38.

In this embodiment, the radio frequency circuit further includes a fifth switch 38, a ninth filter B3 SAW2, a tenth filter B7 SAW2, an eleventh filter B40 SAW2, and a twelfth filter B41 SAW 2. The fifth switch 38 is used to conduct the second antenna 3404 with the ninth filter B3 SAW2, the tenth filter B7 SAW2, the eleventh filter B40 SAW2 or the twelfth filter B41 SAW2, thereby implementing MIMO.

Further, in an embodiment of the present application, as shown in fig. 4 to 8, the second receiving circuit 3604 includes a fourth amplifier LNA4 and a fourth switch K4, a second port is connected to a first end of the fourth switch K4 through the fourth amplifier LNA4, and a second end to a sixth end of the fourth switch K4 are sequentially connected to a second end of the first switch 3610, a ninth filter B3 SAW2, a tenth filter B7 SAW2, an eleventh filter B40 SAW2, and a twelfth filter B41 SAW 2; the first terminal of the fourth switch K4 may be connected to one of the second terminal to the sixth terminal of the fourth switch K4.

In this embodiment, the second receiving circuit 3604 includes a fourth amplifier LNA4 and a fourth switch K4, one end of the fourth switch K4 is connected to the fourth amplifier LNA4, and the other end of the fourth switch K4 can selectively communicate with one of a ninth filter B3 SAW2, a tenth filter B7 SAW2, an eleventh filter B40 SAW2 and a twelfth filter B41 SAW2, so as to implement different MIMO combinations.

In the embodiment of the present application, the first switch 3610 includes a double-pole double-throw switch, which can implement conduction in multiple situations, and the first switch 3610, the first switch K1, the second switch K2, the third switch K3, and the fourth switch K4 can be selectively connected to a filter, thereby implementing different CA or MIMO combinations.

Illustratively, as shown in fig. 4, B1+ B3+ B7+ B40 is supported in the non-MIMO state, specifically, B1 is supported by the second amplifier LNA2, B3 is supported by the third amplifier LNA3, B7 is supported by the first amplifier LNA1, and B40 is supported by the first switch 3610 to the fourth amplifier LNA4, which supports the 4CA scenario and meets the requirements of some specific operators.

As another example, as shown in fig. 5, B1/N14 × 4MIMO + B34 × 4MIMO is supported in the MIMO state, specifically, B1 is supported by the second amplifier LNA2, B3 is supported by the third amplifier LNA3, B1 MIMO is supported by the first amplifier LNA1, and B3 MIMO is supported by the fourth amplifier LNA4, which satisfies the requirements of many operators for B1/N1+ B3/N34 × 4 MIMO.

Further, in an embodiment of the present application, as shown in fig. 6 to 8, the radio frequency circuit 30 further includes: a second switch 3614; a first terminal of the second switch 3614 is connected to a tenth filter B7 SAW2, a second terminal of the second switch 3614 is connected to an input terminal of the second receiver circuit 3604, a third terminal of the second switch 3614 is connected to an input terminal of the fourth receiver circuit 3608, and a fourth terminal of the second switch 3614 is connected to an input terminal of the third receiver circuit 3606; a first terminal of the second switch 3614 may be electrically connected to a second terminal of the second switch 3614, a third terminal of the second switch 3614, or a fourth terminal of the second switch 3614.

In this embodiment, a single-pole multi-throw second switch 3614 is added in the rf circuit 30, so that more CA or MIMO capabilities can be realized. Specifically, the second switch 3614 is connected to the tenth filter B7 SAW2, the second receiver circuit 3604, the third receiver circuit 3606, and the fourth receiver circuit 3608. That is, a part of CA or MIMO combination is added by first switch 3610, and a part of CA or MIMO combination is added by second switch 3614.

In addition, the second switch 3614 may be connected to one of the eleventh filter B40 SAW2 and the twelfth filter B41 SAW2 according to signal diversity requirements, for example, when the eleventh filter B40 SAW2 needs to be CA-combined, the first end of the second switch 3614 is connected to the eleventh filter B40 SAW 2. That is, more CA _ MIMO and EN _ DC capabilities may be implemented in the same manner based on B40, B41, or other combinations.

In the embodiment of the present application, the first switch 3610, the second switch 3614, the first switch K1, the second switch K2, the third switch K3, and the fourth switch K4 are selectively connected to the filter, so as to implement different CA or MIMO combinations.

Illustratively, as shown in fig. 7, 4 × 4MIMO implementing B1+ B7, B1 is supported by the second amplifier LNA2, B7 is supported by the first amplifier LNA1, B1 MIMO is supported by the fourth amplifier LNA4 using the first switch 3610, and B7 MIMO is supported by the third amplifier LNA3 using the second switch 3614.

As shown in fig. 8, 4 × 4MIMO implementing B3+ B7, B3 is supported by the third amplifier LNA3, B7 is supported by the first amplifier LNA1, B3 MIMO is supported by the fourth amplifier LNA4, and B7 MIMO is supported by the second amplifier LNA2 using the second switch 3614.

The embodiment of the application can achieve the aim of supporting more combinations through flexible switch configuration.

It should be noted that the radio frequency circuit 30 also supports the configuration of 3 CA +1 MIMO, and from the architecture, the configuration requirement of more flexible can be realized by adding 2 switches (i.e., the first switch and the second switch), and the configuration requirements of 2CA +2MIMO and the like of B1+ B3, B3+ B7, and B1+ B7 are realized, and because the radio frequency circuit is integrated inside a chip, the increase of the switch die (die) is not large, the influence on the chip area is limited, and the requirement of an operator is better supported without substantially increasing the cost.

The embodiment of the application is mainly a diversity module, can also be popularized to a receiving part in a transceiving module, realizes better functions by adopting the same flexible collocation, and meets the requirement of supporting more without increasing the area.

The embodiment of the present application provides an electronic device, as shown in fig. 9, the electronic device 90 includes the radio frequency circuit 30 of the above embodiment.

The electronic device may be a mobile electronic device or a non-mobile electronic device. By way of example, the Mobile electronic device may be a Mobile phone, a tablet Computer, a notebook Computer, a palm top Computer, an in-vehicle electronic device, a wearable device, an Ultra-Mobile Personal Computer (UMPC), a netbook or a Personal Digital Assistant (PDA), and the like, and the non-Mobile electronic device may be a server, a Network Attached Storage (NAS), a Personal Computer (Personal Computer, PC), a Television (TV), a teller machine, a self-service machine, and the like, and the embodiments of the present application are not limited in particular.

The operating system of the electronic device in the embodiment of the present application may be an Android operating system, an ios operating system, or other possible operating systems, which is not specifically limited in the embodiment of the present application.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element. Further, it should be noted that the scope of the methods and apparatus of the embodiments of the present application is not limited to performing the functions in the order illustrated or discussed, but may include performing the functions in a substantially simultaneous manner or in a reverse order based on the functions involved, e.g., the methods described may be performed in an order different than that described, and various steps may be added, omitted, or combined. In addition, features described with reference to certain examples may be combined in other examples.

Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solutions of the present application may be embodied in the form of a computer software product, which is stored in a storage medium (such as ROM/RAM, magnetic disk, optical disk) and includes instructions for enabling a terminal (such as a mobile phone, a computer, a server, or a network device) to execute the method according to the embodiments of the present application.

While the present embodiments have been described with reference to the accompanying drawings, it is to be understood that the invention is not limited to the precise embodiments described above, which are meant to be illustrative and not restrictive, and that various changes may be made therein by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. A radio frequency circuit, comprising: a radio frequency transceiver, a first receiving circuit, a second receiving circuit, a first switch, a first filter, a second filter, a first antenna, and a second antenna;

the first port is connected to the output end of the first receiving circuit, and the second port is connected to the output end of the second receiving circuit;

The input end of the first receiving circuit is connected to the first end of the first changeover switch, the input end of the second receiving circuit is connected to the second end of the first changeover switch, and the first changeover switch The third end of the switch is connected to the first antenna through the first filter, and the fourth end of the first switch is connected to the second antenna through the second filter;

Wherein, the third terminal of the first switch can be connected to the first terminal of the first switch or the second terminal of the first switch, and the fourth terminal of the first switch can be connected to The second end of the first transfer switch or the second end of the first transfer switch is turned on.

2. The radio frequency circuit according to claim 1, wherein the radio frequency circuit further comprises: a third filter and a fourth filter;

The first receiving circuit includes a first amplifier and a first switch, the first port is connected to the first end of the first switch through the first amplifier, and the second end of the first switch is connected to the first end of the first switch. a third filter is connected, the third end of the first switch is connected to the fourth filter, and the fourth end of the first switch is connected to the first end of the first transfer switch;

Wherein, the first end of the first switch may be conductive with the second end of the first switch or the third end of the first switch or the fourth end of the first switch.

3. The radio frequency circuit according to claim 2, wherein,

The radio frequency transceiver is provided with a third port;

The radio frequency circuit further includes: a third receiving circuit, a fifth filter, and a sixth filter;

The output end of the third receiving circuit is connected to the third port, and the input end of the third receiving circuit is respectively connected to the fifth filter and the sixth filter.

4. The radio frequency circuit according to claim 3, characterized in that,

The radio frequency transceiver is provided with a fourth port;

The radio frequency circuit further includes: a fourth receiving circuit, a seventh filter, and an eighth filter;

The output end of the fourth receiving circuit is connected to the fourth port, and the input end of the fourth receiving circuit is respectively connected to the seventh filter and the eighth filter.

5. The radio frequency circuit according to claim 4, wherein,

The third receiving circuit includes a second amplifier and a second switch, the third port is connected to the first end of the second switch through the second amplifier, and the second end of the second switch is connected to the second switch. a fifth filter is connected, and the third end of the second switch is connected to the sixth filter;

The fourth receiving circuit includes a third amplifier and a third switch, the fourth port is connected to the first end of the third switch through the third amplifier, and the second end of the third switch is connected to the third switch. a seventh filter is connected, and the third end of the third switch is connected to the eighth filter;

Wherein, the first end of the second switch can be connected to the second end of the second switch or the third end of the second switch, and the first end of the third switch can be connected to the third The second end of the switch or the third end of the third switch is turned on.

6. The radio frequency circuit according to claim 4, wherein the radio frequency circuit further comprises: an antenna frequency band control switch;

The input end of the antenna frequency band control switch is connected to the first antenna, and the output end of the antenna frequency band control switch is respectively connected to the first filter, the third filter, the fourth filter, the The fifth filter, the sixth filter, the seventh filter, and the eighth filter are connected;

Wherein, the antenna frequency band control switch can control the first antenna, the first filter, the third filter, the fourth filter, the fifth filter, and the sixth filter , at least one of the seventh filter and the eighth filter is turned on.

7. The radio frequency circuit according to any one of claims 4 to 6, wherein the radio frequency circuit further comprises: a fifth switch, a ninth filter, a tenth filter, an eleventh filter, a twelve filters;

The input end of the fifth switch is connected to the second antenna, and the multiple output ends of the fifth switch are respectively connected to the second filter, the ninth filter, the tenth filter, the The eleventh filter and the twelfth filter are connected;

Wherein, the input end of the fifth switch can be conductive with one of the output ends of the fifth switch.

8 . The radio frequency circuit according to claim 7 , wherein the second receiving circuit comprises a fourth amplifier and a fourth switch, and the second port passes through a first connection between the fourth amplifier and the fourth switch. 9 . one end is connected, the second end to sixth end of the fourth switch are connected with the second end of the first switch, the ninth filter, the tenth filter, and the eleventh filter in sequence connected to the twelfth filter;

Wherein, the first end of the fourth switch can be conductive with one of the second end to the sixth end of the fourth switch.

9. The radio frequency circuit according to claim 7, wherein the radio frequency circuit further comprises: a second switch;

The first end of the second changeover switch is connected to the tenth filter, the second end of the second changeover switch is connected to the input end of the second receiving circuit, and the third end of the second changeover switch is connected to the input end of the second receiving circuit. The terminal is connected to the input terminal of the fourth receiving circuit, and the fourth terminal of the second switching switch is connected to the input terminal of the third receiving circuit;

Wherein, the first terminal of the second switch can be conductive with the second terminal of the second switch or the third terminal of the second switch or the fourth terminal of the second switch.

10. An electronic device, comprising the radio frequency circuit according to any one of claims 1 to 9.