CN217159699U

CN217159699U - Radio frequency switch module, radio frequency system and communication equipment

Info

Publication number: CN217159699U
Application number: CN202220568359.9U
Authority: CN
Inventors: 陈锋; 仝林
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2022-03-15
Filing date: 2022-03-15
Publication date: 2022-08-09
Anticipated expiration: 2032-03-15

Abstract

The embodiment of the application relates to a radio frequency switch module, radio frequency system and communication equipment, and the radio frequency switch module is configured with first antenna port, second antenna port, first receiving and dispatching port and second receiving and dispatching port, and the second receiving and dispatching port is used for transmitting the radio frequency signal of target standard, and the radio frequency switch module includes: the first switch unit is connected with the second transceiving port at one first end, and the rest first ends of the first switch unit are respectively connected with at least one first transceiving port in a one-to-one correspondence manner; a first end of the second switch unit is connected with a second end of the first switch unit, and a second end of the second switch unit is connected with the first antenna port; the second antenna port is connected to the other second end of the first switch unit or the other second end of the second switch unit, and is connected to the second transceiving port through at least one of the first switch unit and the second switch unit.

Description

Radio frequency switch module, radio frequency system and communication equipment

Technical Field

The embodiment of the application relates to the technical field of radio frequency, in particular to a radio frequency switch module, a radio frequency system and communication equipment.

Background

With the development and progress of the technology, the mobile communication technology is gradually applied to communication devices, such as mobile phones, etc., which have built-in radio frequency systems. Accordingly, radio frequency systems also need to support more and more functions. However, the flexibility of prior art rf systems has not been able to meet such complex communication requirements.

SUMMERY OF THE UTILITY MODEL

In view of the foregoing, it is desirable to provide a radio frequency switch module, a radio frequency system and a communication device capable of flexibly detecting channel quality of each radio frequency path in a radio frequency system.

In a first aspect, the present application provides a radio frequency switch module configured with a first antenna port, a second antenna port, a first transceiving port, and a second transceiving port, where the second transceiving port is used to transmit a radio frequency signal of a target system, and the radio frequency switch module includes:

a first switch unit, wherein a first end of the first switch unit is connected to the second transceiving port, and the remaining first ends of the first switch unit are respectively connected to at least one first transceiving port in a one-to-one correspondence manner;

a second switch unit, a first end of the second switch unit being connected to a second end of the first switch unit, a second end of the second switch unit being connected to the first antenna port;

the second antenna port is connected to the other second end of the first switch unit or the other second end of the second switch unit, and is connected to the second transceiving port through at least one of the first switch unit and the second switch unit, so as to support a 1T2R round-trip function of the radio frequency signal of the target system through the first antenna port and the second antenna port, respectively.

In a second aspect, the present application provides a radio frequency system comprising:

a radio frequency transceiver;

two antennas;

according to the radio frequency switch module, the first antenna port and the second antenna port of the radio frequency switch module are respectively connected with the two antennas in a one-to-one correspondence manner;

and the transceiving module is respectively connected with the radio frequency transceiver and the radio frequency switch module, and is used for transmitting and processing the radio frequency signals from the radio frequency transceiver and transmitting the processed signals to the radio frequency switch module, and is also used for receiving and processing the radio frequency signals from the radio frequency switch module and transmitting the processed signals to the radio frequency transceiver.

In a third aspect, the present application provides a communication device comprising a radio frequency system as described above.

When the radio frequency switch module needs to transmit radio frequency signals in turn, the radio frequency switch module can receive the radio frequency signals of a target system through the second receiving and transmitting port, and respectively transmit the radio frequency signals of the target system to the first antenna port and the second antenna port through the switching function of the first switch unit and/or the second switch unit so as to transmit the radio frequency signals of the target system in turn to the 1T 2R. Moreover, when the radio frequency signal is not required to be sent out in turn, the first switch unit can also transmit the signal from the first transceiving port to the first antenna port through the second switch unit so as to send the radio frequency signal, or transmit the signal from the second switch unit to the first transceiving port so as to receive the radio frequency signal. Under the alternate sending scene and the conventional sending and receiving scene, the radio frequency switch module can flexibly switch the radio frequency path through signals, so that the flexibility of a radio frequency system is effectively improved.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments or related technologies of the present application, the drawings needed to be used in the description of the embodiments or related technologies are briefly introduced below, it is obvious that the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural diagram of an rf switch module according to an embodiment;

FIG. 2 is a second schematic structural diagram of an RF switch module according to an embodiment;

FIG. 3 is a third schematic structural diagram of an RF switch module according to an embodiment;

FIG. 4 is a fourth schematic structural diagram of an RF switch module according to an embodiment;

FIG. 5 is a fifth exemplary schematic structural diagram of an RF switch module according to an embodiment;

FIG. 6 is a sixth schematic structural view of an RF switch module according to an embodiment;

FIG. 7 is a seventh schematic structural diagram of an RF switch module according to an embodiment;

FIG. 8 is an eighth schematic structural diagram of an RF switch module according to an embodiment;

fig. 9 is a block diagram of an rf system according to an embodiment.

Element number description:

the radio frequency switch module: 10; a first switching unit: 100; a first radio frequency switch: 110; a second radio frequency switch: 120 of a solvent; a second switching unit: 200 of a carrier; a coupler: 300, and (c) a step of cutting; a radio frequency transceiver: 20; a transceiver module: 30.

Detailed Description

In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.

It will be understood that, as used herein, the terms "first," "second," and the like may be used herein to describe various elements, but these elements are not limited by these terms. These terms are only used to distinguish one element from another. For example, a first antenna port may be referred to as a second antenna port, and similarly, a second antenna port may be referred to as a first antenna port, without departing from the scope of the present application. Both the first antenna port and the second antenna port are antenna ports, but they are not the same antenna port.

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, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present application, "plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise. In the description of the present application, "a plurality" means at least one, e.g., one, two, etc., unless explicitly specified otherwise.

Fig. 1 is a first schematic structural diagram of an rf switch module 10 according to an embodiment, and fig. 2 is a second schematic structural diagram of the rf switch module 10 according to the embodiment, and with reference to fig. 1 and fig. 2, in one embodiment, the rf switch module 10 is configured with a first antenna Port ANT Port, a second antenna Port SRS OUT, a first transceiving Port TRX1, and a second transceiving Port TRX14, where the second transceiving Port TRX14 is configured to transmit an rf signal of a target system. The rf switch module 10 includes a first switch unit 100 and a second switch unit 200. One first end of the first switch unit 100 is connected to the second transceiver port TRX14, and the remaining first ends of the first switch unit 100 are respectively connected to at least one first transceiver port TRX1 in a one-to-one correspondence manner. Specifically, in the embodiment shown in fig. 1, the first switch unit 100 has two first ends, and the two first ends of the first switch unit 100 are respectively connected to one of the first transceiver ports TRX1 and one of the second transceiver ports TRX14 in a one-to-one correspondence manner. In other embodiments, the first switch unit 100 may also have four first terminals, one of the first terminals is connected to the second transceiver port TRX14, and the remaining three first terminals of the first switch unit 100 are respectively connected to the three first transceiver ports TRX1 in a one-to-one correspondence manner. A first terminal of the second switch unit 200 is connected to a second terminal of the first switch unit 100, and a second terminal of the second switch unit 200 is connected to the first antenna Port ANT Port.

Referring to fig. 1, in one example, the second antenna port SRS OUT may be connected to the other second end of the first switch unit 100. Based on the above structure, the second antenna Port SRS OUT-the first switch unit 100-the second switch unit 200-the first antenna Port ANT Port may constitute a first radio frequency path, and the second antenna Port SRS OUT-the first switch unit 100-the second antenna Port SRS OUT may constitute a second radio frequency path. Therefore, the radio frequency Signal from the second transceiving port TRX14 can be sequentially transmitted through the first radio frequency path and the second radio frequency path, thereby implementing a 1T2R round transmission (SRS) function on the radio frequency Signal of the target system.

Referring to fig. 2, in another example, the second antenna port SRS OUT may also be connected to another second terminal of the second switch unit 200. Based on the above structure, the second antenna Port SRS OUT-the first switch unit 100-the first antenna Port ANT Port of the second switch unit 200 may constitute a first radio frequency path, and the second antenna Port SRS OUT-the first switch unit 100-the second antenna Port SRS OUT of the second switch unit 200 may constitute a second radio frequency path. Therefore, the radio frequency signal from the second transceiving port TRX14 can be transmitted sequentially through the first radio frequency path and the second radio frequency path, thereby implementing the 1T2R round-robin transmission function for the radio frequency signal of the target system.

That is, the second antenna Port SRS OUT may be connected to the second transceiving Port TRX14 through at least one of the first switch unit 100 and the second switch unit 200, so as to support a 1T2R round-robin function for the radio frequency signals of the target system through the first antenna Port ANT and the second antenna Port SRS OUT, respectively. In this embodiment, when the round transmission of the radio frequency signal is required, the radio frequency signal of the target system can be received through the second transceiving Port TRX14, and the radio frequency signal of the target system is respectively transmitted to the first antenna Port ANT Port and the second antenna Port SRS OUT through the switching function of the first switch unit 100 and/or the second switch unit 200, so as to perform the round transmission of the 1T 2R. Furthermore, when the radio frequency signal is not required to be transmitted in turn, the first switch unit 100 may transmit the radio frequency signal from the first transmitting/receiving Port TRX1 to the first antenna Port ANT Port via the second switch unit 200, or transmit the radio frequency signal from the second switch unit 200 to the first transmitting/receiving Port TRX1, so as to receive the radio frequency signal. By reasonably planning the circuit function in the switch, the circuit for performing 1T2R rounds of sending of the target system radio frequency signals in the dual-antenna radio frequency system is effectively simplified. In a round-sending scene and a conventional receiving and sending scene, the radio frequency switch module 10 can flexibly switch radio frequency paths by signals, so that the flexibility of a radio frequency system is effectively improved.

In one embodiment, the target standard is a 5G standard. It can be understood that the radio frequency signal of 5G standard has relatively higher requirement on channel quality. Therefore, through the SRS function, the communication quality on each channel can be effectively acquired, and then the channel with higher communication quality can be selected for communication, so that the communication quality of the radio frequency signal of the 5G system is effectively improved. The frequency band of the radio frequency signal of the 5G standard includes, but is not limited to, N1, N41, N77, N79, and the like, and in each embodiment of the present application, the frequency band of the radio frequency signal of the 5G standard is N41 for example.

In one embodiment, the first transceiving port TRX1 is configured to transmit radio frequency signals of 3G, 4G, and 5G communication systems. Specifically, due to the continuous development of the radio frequency technology, a communication operator gradually quits the 2G GSM, and after the GSM quits the network, if the 2G system radio frequency signal is continuously supported for receiving and transmitting, the cost of the scheme of the communication equipment such as the mobile phone is increased. Therefore, in this embodiment, the first transceiving port TRX1 is used to transmit radio frequency signals of 3G, 4G, and 5G communication systems, so as to reduce a hardware structure for supporting 2G transceiving, thereby reducing the volume of the radio frequency system and the communication device.

Fig. 3 is a third structural schematic diagram of the rf switch module 10 according to an embodiment, and referring to fig. 3, in one embodiment, the rf switch module 10 may be configured with a plurality of first transceiving ports. Specifically, the rf switch module 10 of the present embodiment is configured with 13 first transceiving ports, i.e., TRX1 to TRX 13. By arranging the plurality of first transceiving ports, transceiving of radio frequency signals of a plurality of different frequency bands can be supported, so that compatibility of the radio frequency switch module 10 is improved. It is understood that, in other embodiments, the rf switch module 10 may be configured with other numbers of first transceiving ports. Moreover, some of the first transceiving ports may be idle standby ports, that is, the first transceiving ports do not have to be connected to the low noise amplifiers or the power amplifiers in a one-to-one correspondence, and may be specifically set according to a use requirement.

Fig. 4 is a fourth schematic structural diagram of the rf switch module 10 according to an embodiment, and referring to fig. 4, in one embodiment, the rf switch module 10 is configured with two first antenna ports ANT Port1 and ANT Port2, and the rf switch module 10 is further configured with a diversity receiving Port DRx.

Wherein the second switching unit 200 includes two first terminals and at least two second terminals. Two first ends of the second switch unit 200 are respectively connected to one second end of the first switch unit 100 and the diversity reception ports DRx in a one-to-one correspondence manner, and two second ends of the second switch unit 200 are respectively connected to two first antenna ports ANT Port in a one-to-one correspondence manner. In particular, when the second switching unit 200 further includes an additional second terminal, the additional second terminal may be connected to the second antenna port SRS OUT as shown in fig. 4. When the second switching unit 200 includes only two second terminals, the second antenna port SRS OUT may be connected to the first switching unit 100 as shown in fig. 1. In this embodiment, one first antenna Port ANT Port may be connected to a main antenna and the other first antenna Port ANT Port may be connected to a diversity antenna. Accordingly, each path of signal can perform the ASDIV function of antenna switching between the main antenna and the diversity antenna without matching with an additional circuit, thereby simplifying the radio frequency front end architecture.

With continued reference to fig. 4, in one embodiment, the rf switch module 10 is configured with two of the second antenna ports SRS OUT, namely SRS OUT1 and SRS OUT 2. The second switch unit 200 includes four second ends, and the four second ends of the second switch unit 200 are respectively connected to the two first antenna ports ANT Port and the two second antenna ports SRS OUT in a one-to-one correspondence manner. Based on the above structure, the second transceiving Port TRX 14-the first switch unit 100-the second switch unit 200-the first antenna Port ANT Port2 may constitute a first radio frequency path, the second transceiving Port TRX 14-the first switch unit 100-the second switch unit 200-the first antenna Port ANT Port1 may constitute a second radio frequency path, the second transceiving Port TRX 14-the first switch unit 100-the second switch unit 200-the second antenna Port SRS OUT1 may constitute a third radio frequency path, and the second transceiving Port TRX 14-the first switch unit 100-the second switch unit 200-the second antenna Port SRS OUT2 may constitute a fourth radio frequency path. Therefore, the radio frequency Signal from the second transceiving port TRX14 may be transmitted sequentially through the first radio frequency path, the second radio frequency path, the third radio frequency path, and the fourth radio frequency path, thereby implementing a 1T4R round transmission (SRS) function on the radio frequency Signal of the target system. In this embodiment, when the radio frequency signal needs to be transmitted in round, the radio frequency signal of the target system can be received through the second transceiver port TRX14, and the 1T4R round transmission is realized through the switching function of the first switch unit 100 and/or the second switch unit 200. When the radio frequency signal is not required to be transmitted in a round, the first switch unit 100 may select a radio frequency path between any one of the first transmission/reception ports TRX1 to TRX13 and the first antenna Port ANT Port, thereby transmitting and receiving the radio frequency signal. By reasonably planning the circuit function in the switch, the circuit for performing 1T4R rounds of sending of the target system radio frequency signals in the four-antenna radio frequency system is effectively simplified. In a round-sending scene and a conventional receiving and sending scene, the radio frequency switch module 10 can flexibly switch radio frequency paths by signals, so that the flexibility of a radio frequency system is effectively improved.

Fig. 5 is a fifth structural schematic diagram of the rf switch module 10 according to an embodiment, and referring to fig. 5, in one embodiment, the rf switch module 10 is configured with two second antenna ports SRS OUT. The first switch unit 100 includes three second terminals, and the three second terminals of the first switch unit 100 are respectively connected to one second terminal of the second switch unit 200 and the two second antenna ports SRS OUT in a one-to-one correspondence manner. Based on the above structure, the second transceiving Port TRX 14-the first switch unit 100-the second switch unit 200-the first antenna Port ANT Port2 may constitute a first radio frequency path, the second transceiving Port TRX 14-the first switch unit 100-the second switch unit 200-the first antenna Port ANT Port1 may constitute a second radio frequency path, the second transceiving Port TRX 14-the first switch unit 100-the second antenna Port SRS OUT1 may constitute a third radio frequency path, and the second transceiving Port TRX 14-the first switch unit 100-the second antenna Port SRS OUT2 may constitute a fourth radio frequency path. Therefore, the radio frequency Signal from the second transceiving port TRX14 may be transmitted sequentially through the first radio frequency path, the second radio frequency path, the third radio frequency path, and the fourth radio frequency path, thereby implementing a 1T4R round transmission (SRS) function on the radio frequency Signal of the target system.

In one embodiment, the first transceiving port TRX1 and the second antenna port SRS OUT are in an off state. Specifically, if there is no need to transmit the rf signal to the second antenna port SRS OUT through the first transceiving port TRX1 in an actual usage scenario, a corresponding rf path may not be provided in the first switch unit 100. That is, the first transceiving port TRX1 cannot be conducted to the second antenna port SRS OUT at any time. It can be understood that the above arrangement may simplify the internal structure of the first switch unit 100, so that the volume of the first switch unit 100 may be reduced and the cost of the first switch unit 100 may be reduced. It is understood that, in other embodiments, if there is a need to transmit the rf signal to the second antenna port SRS OUT through the first transceiving port TRX1, a corresponding rf path may be provided, and the embodiment is not limited thereto.

With continued reference to fig. 5, in one embodiment, the rf switch module 10 is further configured with a power detection port for connecting to an rf transceiver, and the rf switch module 10 further includes a coupler 300. The coupler 300 is disposed in a radio frequency path between the first switch unit 100 and the second switch unit 200, an output end of the coupler 300 is connected to the power detection port, and the coupler 300 is configured to detect power of a radio frequency signal output through the second end of the first switch unit 100, and output a detection result to the power detection port, so as to implement power information detection on the radio frequency signal, and thus, analysis and control based on the power information can be performed. Specifically, the detection result may include a forward coupling signal and a reverse coupling signal, and based on the forward coupling signal, the forward power information of the transmitted radio frequency signal may be detected; based on the reverse coupled signal, reverse power information of the transmitted radio frequency signal may be correspondingly detected. It is understood that, as shown in fig. 6, based on the above-mentioned radio frequency switch module 10 in the embodiments of fig. 2 to fig. 4, a coupler 300 may also be disposed, and the disposing manner is similar to that in the embodiment of fig. 5, and is not repeated here.

Fig. 7 is a seventh schematic structural diagram of the rf switch module 10 according to an embodiment, and referring to fig. 7, in one embodiment, the first switch unit 100 includes a first rf switch 110 and a second rf switch 120. The first rf switch 110 includes a first terminal and three second terminals, the first terminal of the first rf switch 110 is connected to the second transceiving port TRX14, and the three second terminals of the first rf switch 110 are respectively connected to the first terminal of the second rf switch 120 and the two second antenna ports SRS OUT in a one-to-one correspondence manner. The second rf switch 120 includes at least two first terminals and a second terminal, the remaining first terminals of the second rf switch 120 are respectively connected to the first antenna ports ANT Port in a one-to-one correspondence, and the second terminal of the second rf switch 120 is connected to a first terminal of the second switch unit 200. Based on the above structure, the second transceiving Port TRX14, the first rf switch 110, the second rf switch 120, the second switch unit 200, the first antenna Port ANT Port2 may form a first rf path, the second transceiving Port TRX14, the first rf switch 110, the second rf switch 120, the second switch unit 200, the first antenna Port ANT Port2 may form a second rf path, the second transceiving Port TRX14, the first rf switch 110, the second antenna Port SRS OUT1 may form a third rf path, and the second transceiving Port TRX14, the first rf switch 110, the second antenna Port SRS OUT2 may form a fourth rf path. Therefore, the radio frequency Signal from the second transceiving port TRX14 may be transmitted sequentially through the first radio frequency path, the second radio frequency path, the third radio frequency path, and the fourth radio frequency path, thereby implementing a 1T4R round transmission (SRS) function on the radio frequency Signal of the target system. It is understood that, for example, as shown in fig. 8, other radio frequency switch combinations capable of implementing the switching function of the first switch unit 100 also belong to the protection scope of the present application, and are not exemplified here.

The embodiment of the present application further provides a radio frequency system, where the radio frequency system related to the embodiment of the present application may be applied to a communication device with a wireless communication function, and the communication device may be a handheld device, a vehicle-mounted device, a wearable device, a computing device, or other processing devices connected to a wireless modem, and various forms of User Equipment (UE), such as a Mobile phone, a Mobile Station (MS), and the like. For convenience of description, the above-mentioned devices are collectively referred to as a communication device.

Fig. 9 is a block diagram of an embodiment of a radio frequency system, and referring to fig. 9, the radio frequency system includes a radio frequency transceiver 20, two antennas, a transceiver module 30, and the radio frequency switch module 10. It should be noted that, in this embodiment, the radio frequency switch module 10 in the embodiment of fig. 1 is taken as an example to constitute a radio frequency system, and the radio frequency switch modules 10 in other embodiments may also constitute corresponding radio frequency systems respectively, and only the number of antennas and the transceiver circuit in the transceiver module 30 need to be adaptively adjusted, which is not described herein again.

The first antenna ANT1 and the second antenna ANT2 can both support transceiving of radio frequency signals of different frequency bands. Each branch antenna may be formed using any suitable type of antenna. For example, each branch antenna may include an antenna with a resonating element formed from the following antenna structure: at least one of an array antenna structure, a loop antenna structure, a patch antenna structure, a slot antenna structure, a helical antenna structure, a strip antenna, a monopole antenna, a dipole antenna, and the like. Different types of antennas may be used for different frequency bands and frequency band combinations. In this embodiment, the types of the first antenna ANT1 and the second antenna ANT2 are not further limited. The first antenna Port ANT Port and the second antenna Port SRS OUT of the radio frequency switch module 10 are respectively connected with the two antennas in a one-to-one correspondence manner. The transceiver module 30 is respectively connected to the rf transceiver 20 and the rf switch module 10, and is configured to transmit a radio frequency signal from the rf transceiver 20, transmit the processed signal to the rf switch module 10, receive a radio frequency signal from the rf switch module 10, and transmit the processed signal to the rf transceiver 20. The transceiver module 20 is configured to perform transmitting and receiving processing on the received preset low-frequency signal. In this embodiment, the transceiver Module 20 may be a Low frequency Power Amplifier Module (LB L-PA Mid) with a built-in Low noise Amplifier. In this embodiment, based on the rf switch module 10, the radio frequency signals can be transmitted, emitted, and received flexibly, so as to provide a flexible rf system.

The embodiment of the application also provides communication equipment comprising the radio frequency system. By setting the radio frequency system, the communication device of the embodiment can transmit the radio frequency signals of the target system in turn to accurately detect the communication quality of each channel, thereby improving the receiving and transmitting quality of the radio frequency signals of the target system. And when the alternate transmission is not carried out, the radio frequency system can also respectively transmit and receive multiple paths of radio frequency signals, so that the flexibility of signal transmission and reception of the communication equipment is improved.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express a few embodiments of the present application, and the description thereof is specific and detailed, but not construed as limiting the scope of the utility model. It should be noted that, for those skilled in the art, variations and modifications can be made without departing from the concept of the embodiments of the present application, and these embodiments are within the scope of the present application. Therefore, the protection scope of the embodiments of the present application shall be subject to the appended claims.

Claims

1. A radio frequency switch module configured with a first antenna port, a second antenna port, a first transceiving port, and a second transceiving port, the second transceiving port being configured to transmit a radio frequency signal of a target system, the radio frequency switch module comprising:

2. The rf switch module of claim 1, wherein the rf switch module is configured with two of the first antenna ports and is further configured with a diversity receive port;

the second switch unit comprises two first ends and at least two second ends, the two first ends of the second switch unit are respectively connected with one second end of the first switch unit and the diversity receiving port in a one-to-one correspondence manner, and the two second ends of the second switch unit are respectively connected with the two first antenna ports in a one-to-one correspondence manner.

3. The rf switch module of claim 2, wherein the rf switch module is configured with two second antenna ports, the second switch unit includes four second ends, and the four second ends of the second switch unit are respectively connected to the two first antenna ports and the two second antenna ports in a one-to-one correspondence manner, so as to support a 1T4R round-trip function of the rf signals of the target system through the two first antenna ports and the two second antenna ports, respectively.

4. The rf switch module of claim 2, wherein the rf switch module is configured with two second antenna ports, the first switch unit includes three second terminals, and the three second terminals of the first switch unit are respectively connected to one second terminal of the second switch unit and two second antenna ports in a one-to-one correspondence manner, so as to support a 1T4R round-sending function of the rf signals of the target system through the two first antenna ports and the two second antenna ports, respectively.

5. The RF switch module of claim 4, wherein the first port and the second port are disconnected.

6. The RF switch module of claim 4, wherein the first switch unit comprises a first RF switch and a second RF switch; wherein the content of the first and second substances,

the first radio frequency switch comprises a first end and three second ends, the first end of the first radio frequency switch is connected with the second transceiving port, and the three second ends of the first radio frequency switch are respectively connected with the first end of the second radio frequency switch and the two second antenna ports in a one-to-one correspondence manner;

the second radio frequency switch comprises at least two first ends and a second end, the remaining first ends of the second radio frequency switch are respectively connected with the first antenna ports in a one-to-one correspondence mode, and the second end of the second radio frequency switch is connected with one first end of the second switch unit.

7. The RF switch module of any of claims 1-6, further configured with a power detection port for connection to an RF transceiver, further comprising:

the coupler is arranged on a radio frequency channel between the first switch unit and the second switch unit, the output end of the coupler is connected with the power detection port, and the coupler is used for detecting the power of the radio frequency signal output by the second end of the first switch unit and outputting a detection result to the power detection port.

8. The RF switch module according to any one of claims 1 to 6, wherein the target format is a 5G format.

9. A radio frequency system, comprising:

a radio frequency transceiver;

two antennas;

the RF switch module of any one of claims 1 to 8 wherein the first antenna port and the second antenna port of the RF switch module are respectively connected to the two antennas in a one-to-one correspondence;

and the transceiving module is respectively connected with the radio frequency transceiver and the radio frequency switch module, and is used for transmitting and processing the radio frequency signals from the radio frequency transceiver, transmitting the processed signals to the radio frequency switch module, receiving and processing the radio frequency signals from the radio frequency switch module, and transmitting the processed signals to the radio frequency transceiver.

10. A communication device comprising a radio frequency system according to claim 9.