Radio frequency circuit and electronic equipment

Abstract

The utility model provides a radio frequency circuit and electronic equipment. The radio frequency circuit comprises a power supply end; the first switch module comprises a first input end, a plurality of first output ends and a first control end, and the first input end is connected with the power supply end; the first switch module is used for conducting the first input end and at least one first output end in the plurality of first output ends according to a first control signal received by the first control end; and a plurality of radio frequency branches, the plurality of radio frequency branches are respectively connected with the plurality of first output ends, a first part of radio frequency branches in the plurality of radio frequency branches comprises a radio frequency transmitting unit, and a second part of radio frequency branches in the plurality of radio frequency branches comprises a radio frequency receiving unit.

Description

Technical Field

[0001] The present application relates to the field of electronic technology, and is related to, but not limited to, a radio frequency circuit and an electronic device. Background Art

[0002] In the related technology, there is a situation where multiple RF devices share a power supply module. The shared power supply module will cause signal crosstalk between the multiple RF signals of multiple RF devices. How to isolate and reduce the mutual interference between the RF transmitting unit and the RF receiving unit, as well as the mutual interference between the RF receiving units when multiple RF signals coexist has become a technical problem that needs to be solved urgently. Utility Model Content

[0003] In view of this, the technical solution of the embodiment of the present application is implemented as follows:

[0004] An embodiment of the present application provides a radio frequency circuit, the radio frequency circuit comprising:

[0005] Power supply end;

[0006] a first switch module, the first switch module comprising a first input terminal, a plurality of first output terminals, and a first control terminal, the first input terminal being connected to the power supply terminal, the first switch module being configured to conduct electricity between the first input terminal and at least one of the plurality of first output terminals according to a first control signal received by the first control terminal;

[0007] Multiple radio frequency branches, each of which is connected to the multiple first output ends respectively, a first part of the radio frequency branches in the multiple radio frequency branches includes a radio frequency transmitting unit, and a second part of the radio frequency branches in the multiple radio frequency branches includes a radio frequency receiving unit.

[0008] An embodiment of the present application provides an electronic device, comprising:

[0009] Power supply module;

[0010] a first switch module, the first switch module comprising a first input terminal, a plurality of first output terminals, and a first control terminal, the first input terminal being connected to the power supply terminal, the first switch module being configured to conduct electricity between the first input terminal and at least one of the plurality of first output terminals according to a first control signal received by the first control terminal;

[0011] Multiple radio frequency branches, each of which is connected to the multiple first output ends respectively, a first part of the radio frequency branches in the multiple radio frequency branches includes a radio frequency transmitting unit, and a second part of the radio frequency branches in the multiple radio frequency branches includes a radio frequency receiving unit. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 A schematic diagram of a radio frequency circuit is provided for an embodiment of the present application;

[0013] Figure 2 A schematic diagram of a radio frequency circuit provided in an embodiment of the present application;

[0014] Figure 3 A schematic diagram of a radio frequency circuit provided in an embodiment of the present application;

[0015] Figure 4 An electronic device provided in an embodiment of the present application;

[0016] Figure 5 A schematic diagram of a radio frequency circuit of the related art;

[0017] Figure 6 A schematic diagram of a radio frequency circuit provided in an embodiment of the present application. DETAILED DESCRIPTION

[0018] To make the technical solutions and advantages of the embodiments of the present application clearer, the specific technical solutions of the present application will be further described in detail below in conjunction with the drawings in the embodiments of the present application. The following embodiments are used to illustrate the present application but are not intended to limit the scope of the present application.

[0019] When describing the embodiments of this application, for ease of explanation, cross-sectional views of device structures may be partially enlarged and not to scale. Furthermore, these schematic views are merely illustrative and should not limit the scope of protection of this application. Furthermore, in actual production, three-dimensional dimensions, including length, width, and depth, should be included.

[0020] It should be understood that the specific embodiments described herein are only used to explain the present application and are not intended to limit the present application.

[0021] In the subsequent description, suffixes such as "module," "component," or "unit" used to represent elements are only used to facilitate the description of the present application and have no specific meaning. Therefore, "module," "component," or "unit" may be used interchangeably.

[0022] Figure 1 A schematic diagram of a radio frequency circuit is provided for an embodiment of the present application, such as Figure 1 As shown, the radio frequency circuit includes: a power supply end 11, a first switch module 12 and a plurality of radio frequency branches 13, wherein:

[0023] A first switch module 12, comprising a first input terminal 121, a plurality of first output terminals 122, and a first control terminal 123. The first input terminal 121 is connected to the power supply terminal 11. The first switch module 12 is configured to conduct electricity between the first input terminal 121 and at least one of the plurality of first output terminals 122 according to a first control signal received by the first control terminal 123;

[0024] Here, the first control terminal 123 can receive a first control signal sent by the control module 14, so that the first switch module 12 determines to connect the first input terminal 121 and at least one first output terminal 122 based on the first control signal. In this way, the connected first output terminal 122 can supply power to the RF branch connected thereto.

[0025] For example, the power supply end 11 can be a port in the RF circuit for connecting to a power management integrated circuit (PowerManagement IC, PMIC), etc. The first input end 121 of the first switch module 12 can be connected to the PMIC through the power supply end 11, and the first input end 121 can be connected to at least one first output end 122 based on a first control signal to provide power for at least one RF branch 13, so that the RF transmitting unit in the at least one RF branch can work.

[0026] The multiple RF branches 13 include at least two RF branches 131, a RF branch 132, and a RF branch 133. The multiple RF branches 13 are respectively connected to the multiple first output terminals 122. A first portion of the multiple RF branches includes a RF transmitting unit, and a second portion of the multiple RF branches includes a RF receiving unit.

[0027] For example, the first input terminal 121 can be connected to a first output terminal 122 based on the first control signal, so that the power supply terminal 11 can supply power to an RF branch 13 (for example, RF branch 131), so that the RF transmitting unit in the RF branch 131 can work; the first input terminal 121 can also be connected to two first output terminals 122 based on the first control signal, so that the power supply terminal 11 can supply power to two RF branches 13 (for example, RF branch 131 and RF branch 132), so that the RF transmitting units in the two RF branches (RF branch 131 and RF branch 132) can work; the first input terminal 121 can also be connected to three first output terminals 122 based on the first control signal, so that the power supply terminal 11 can supply power to three RF branches (RF branch 131, RF branch 132 and RF branch 133), so that the RF transmitting units in the three RF branches can work.

[0028] In some embodiments, when the RF transmitting unit in the RF branch 132 is not operating and the RF receiving unit is operating, the first output terminal 122 connected to the RF branch 132 is disconnected from the first input terminal 121. In this way, the influence of the RF signal generated by the operating RF transmitting unit of the other RF branch on the RF receiving unit in the RF branch can be cut off.

[0029] In some embodiments, when the RF transmitting unit and the RF receiving unit in RF branch 131 are in operation, the first output terminal 122 and the first input terminal 131 corresponding to the RF branch 131 are connected to power the RF branch 131. When the RF transmitting unit in RF branch 132 and / or RF branch 133 is not in operation and the RF receiving unit is in operation, the first output terminal 122 and the first input terminal 121 corresponding to the RF branch 132 and / or RF branch 133 are disconnected. In this way, the influence of the RF signal generated by the RF transmitting unit of RF branch 131 when in operation and / or the RF signal of the RF receiving unit on the RF receiving unit in RF branch 132 and / or RF branch 133 can be cut off.

[0030] In an embodiment of the present application, the RF circuit includes: a power supply end; a first switch module, the first switch module includes a first input end, multiple first output ends and a first control end, the first input end is connected to the power supply end, and the first switch module is used to conduct the first input end and at least one of the multiple first output ends according to the first control signal received by the first control end; multiple RF branches, the multiple RF branches are respectively connected to the multiple first output ends, the first part of the RF branches in the multiple RF branches include RF transmitting units, and the second part of the RF branches in the multiple RF branches include RF receiving units. In this way, when the RF transmitting unit in the RF branch is not working and the RF receiving unit is working, the first output end connected to the RF branch is disconnected from the first input end. This effectively cuts off the influence of the RF signal generated when the RF transmitting unit of other RF branches is working on the RF receiving unit in the RF branch, thereby improving the receiving sensitivity of the RF receiving unit.

[0031] Figure 2 A schematic diagram of a radio frequency circuit provided by this radio frequency embodiment, such as Figure 2 As shown, the radio frequency circuit includes: a power supply end 11, a first switch module 12, a plurality of radio frequency branches 13 and a second switch module 15, wherein:

[0032] The second switch module 15 includes a second input terminal 151, a second output terminal 152 and a second control terminal 153. The second input terminal 151 is connected to the RF branch 13, and the second output terminal 152 is connected to the ground point. The second switch module 15 is used to connect the second input terminal 151 and the second output terminal 152 according to the second control signal received by the second control terminal 153.

[0033] The grounding point is located between the RF transmitting unit and / or the RF receiving unit in the RF branch and the second output end 152 .

[0034] In some embodiments, the second control terminal 153 of the switch module can be connected to the control module 16 to obtain the second control signal of the control module to achieve conduction between the second input terminal 151 and the second output terminal 152. Here, the control module 16 and the control module 14 can be the same multiplexed control module, or the control module 16 and the control module 14 can be two independent control modules.

[0035] For example, when the RF transmitting unit of a RF branch 132 is not operating and the RF receiving unit is operating, the control module 16 can control the second input terminal 151 and the second output terminal 152 of the second control module 15 connected to the RF branch 132 to be conductive. In this way, after the noise signal generated by the power supply module 11 is coupled to the second input terminal 151 through crosstalk, the noise signal can be directly directed to the ground through the conductive second output terminal 152, so that the noise information has no chance to crosstalk to the RF receiving unit of the RF branch 132, thereby preventing deterioration of receiving sensitivity.

[0036] In an embodiment of the present application, the RF circuit further includes: a second switch module, the second switch module including a second input terminal, a second output terminal, and a second control terminal, the second input terminal being connected to the RF branch, the second output terminal being connected to a ground point, the second switch module being configured to conduct the second input terminal and the second output terminal based on a second control signal received by the second control terminal, wherein the ground point is located between the RF transmitting unit and / or the RF receiving unit in the RF branch and the second output terminal. In this way, after the noise signal generated by the power supply module is coupled and crosstalked to the second input terminal, the noise signal can be directly directed to the ground using the conducted second output terminal, so that the noise information has no chance of crosstalking to the RF receiving unit of the RF branch, thereby avoiding deterioration of receiving sensitivity.

[0037] In some embodiments, the radio frequency circuit further includes: a control module, the control module is connected to the first control end and / or the second control end, and the control module is used to send the first control signal and / or the second control signal.

[0038] like Figure 1 As shown, the control module may be the control module 14 connected to the first control terminal 123 for sending the first control information.

[0039] like Figure 2 As shown, the control module may be the control module 16 connected to the second control terminal 153 for sending the second control information.

[0040] In some embodiments, the control module may also be a multiplexing control module of the control module 16 and the control module 14 , configured to send the first control information and the second control information.

[0041] For example, the control module may be a radio frequency transceiver, and the control module is further configured to receive and / or send radio frequency signals.

[0042] Here, the RF transceiver may be an electronic device provided in an electronic device for receiving and / or transmitting RF signals. During implementation, the control function of the RF transceiver may be reused to implement the functions of the control module, namely, generating a first control signal and / or a second control signal and transmitting the first control signal and / or the second control signal to the corresponding first switch module and / or second switch module.

[0043] For another example, the control module may also be a controller such as a baseband chip, a processor, a coprocessor, etc., and the above controllers may be connected to the switch module via a MIPI bus.

[0044] In some embodiments, the control module may also be some control chips capable of sending control signals via an I2C bus.

[0045] During implementation, the control module may be connected to the first control end and the second control end via a mobile industry processor interface MIPI bus.

[0046] Here, the connection between the control module and the first control end and / or the second control end may be achieved through the MIPI bus.

[0047] In an embodiment of the present application, a control module is connected to the first control terminal and / or the second control terminal and is used to send the first control signal and / or the second control signal. The control module is a radio frequency transceiver and is also used to receive and / or send radio frequency signals. The control module is connected to the first control terminal and / or the second control terminal via the mobile industry processor interface MIPI bus. In this way, some control functions of the radio frequency transceiver module can be reused without adding additional hardware modules to realize the functions of the control module.

[0048] In some embodiments, the first input terminal of the first switch module is set to be connected to the first output terminal of at least one target RF branch;

[0049] The first output terminal connected to the other radio frequency branches except the at least one target radio frequency branch is disconnected from the first input terminal.

[0050] Figure 3 A schematic diagram of a radio frequency circuit provided by this radio frequency embodiment, such as Figure 3 As shown, the first input terminal 121 of the first switch module 12 can be set to be connected to the first output terminal 122 of a target RF branch 132 to provide power to the target RF branch 132, so that the RF transmitting unit of the target RF branch 132 can operate. At the same time, the first output terminals connected to the other RF branches (including the RF branch 131 and the RF branch 133) other than the at least one target RF branch 132 are disconnected from the first input terminal.

[0051] In the embodiment of the present application, the first input terminal 121 of the first switch module is connected to the first output terminal 122 of at least one target RF branch 132, and the first output terminals 121 connected to RF branches 131 other than the at least one target RF branch 132 are disconnected from the first input terminal 122. In this way, power can be supplied to the target RF branch 132 while disconnecting the remaining RF branches 131 that do not require power from the first input terminal.

[0052] In some embodiments, the two first output terminals 122 of the first switch module are connected to the first RF branch 132 and the second RF branch 131 respectively;

[0053] When the first control signal connects the first output end 122 connected to the first RF branch 132 and the first input end 121, the first output end 122 connected to the second RF branch 131 and the first input end 121 are disconnected; wherein the first RF branch 132 has the first part of the RF branch, and the second RF branch 131 has the second part of the RF branch.

[0054] Here, since the first RF branch 132 has a RF transmitting unit, the first output terminal 122 connected to the first RF branch 132 and the first input terminal 121 are conductive to power the RF transmitting unit.

[0055] The second RF branch 131 may only have an RF receiving unit. Since the RF receiving unit can be powered by other power supply modules in the electronic device, the first output end 122 and the first input end 121 connected to the second RF branch 131 can be disconnected. In this way, the impact of the power module powering the first RF branch 132 and the first RF branch 132 on the RF receiving unit in the second RF branch 131 can be effectively reduced.

[0056] In some implementations, the second RF branch 131 may also include both an RF transmitting unit and an RF receiving unit. In this case, the first output terminal 122 connected to the second RF branch 133 may be conductively connected to the first input terminal 131. In this way, power can be provided to the second RF circuit 131.

[0057] In the embodiment of the present application, when the first control signal connects the first output terminal 122 connected to the first RF branch 132 and the first input terminal 121, the first output terminal 122 connected to the second RF branch 131 is disconnected from the first input terminal 121. In this way, the influence of the power module supplying power to the first RF branch and the transmit signal of the first RF branch on the receive signal of the RF receiving unit in the second RF branch can be effectively reduced.

[0058] In some embodiments, the two first output terminals 121 of the first switch module 12 are connected to the first RF branch 132 and the second RF branch 131 respectively;

[0059] The two second input terminals 151 of the two second switch modules 15 are respectively connected to the first RF branch 132 and the second RF branch 131;

[0060] When the first control signal connects the first output terminal 122 connected to the first RF branch 132 and the first input terminal 121, the first output terminal 122 connected to the second RF branch 131 and the first input terminal 121 are disconnected;

[0061] When the second control signal disconnects the second input end 151 and the second output end 152 connected to the first RF branch 132, the second input end 151 and the second output end 152 connected to the second RF branch 131 are connected; wherein the first part of the RF branch exists in the first RF branch 132, and the second part of the RF branch exists in the second RF branch 131.

[0062] In the embodiment of the present application, when the first control signal connects the first output terminal 122 connected to the first RF branch 132 and the first input terminal 121, the first output terminal 122 connected to the second RF branch 131 and the first input terminal 121 are disconnected; and when the second control signal disconnects the second input terminal 151 connected to the first RF branch 132 and the second output terminal 152, the second input terminal 151 connected to the second RF branch 131 and the second output terminal 152 are connected. In this way, since the second input terminal 151 connected to the second RF branch 131 and the second output terminal 152 are connected, the interference signal generated by the power module 11 powered by the first RF branch 132 and the interference signal generated by the first RF branch 132 can be directly introduced into the grounding point, which greatly reduces the influence of the transmission signals of the power module powered by the first RF branch 132 and the first RF branch 132 on the reception signal of the RF receiving unit in the second RF branch 131.

[0063] Figure 4 An electronic device provided in an embodiment of the present application includes:

[0064] Power supply module 41;

[0065] Here, the electronic device may be a terminal device, that is, an electronic device such as a mobile phone or a tablet computer that can communicate with a base station, and may also be a remote radio unit (RRU).

[0066] The power supply module 41 may be a module capable of providing power to the PA.

[0067] For example, the power supply module 41 may be a power management module for providing electrical signals to various loads, such as a Power Management IC or other integrated power management chips, etc. The PMIC may be provided with a power supply terminal to provide power to the RF branch.

[0068] A first switch module 42, comprising a first input terminal, a plurality of first output terminals, and a first control terminal, wherein the first input terminal is connected to the power supply terminal, and the first switch module is configured to conduct electricity between the first input terminal and at least one of the plurality of first output terminals according to a first control signal received by the first control terminal;

[0069] Multiple RF branches 43, each of which is connected to the multiple first output ends respectively, a first part of the RF branches in the multiple RF branches includes a RF transmitting unit, and a second part of the RF branches in the multiple RF branches includes a RF receiving unit.

[0070] In the embodiment of the present application, when the RF transmitting unit in a RF branch is not operating and the RF receiving unit is operating, the first output terminal connected to the RF branch is disconnected from the first input terminal. This effectively cuts off the influence of RF signals generated by the operating RF transmitting units of other RF branches on the RF receiving unit in the RF branch, thereby improving the receiving sensitivity of the RF receiving unit.

[0071] In some embodiments, the electronic device further includes:

[0072] A second switch module includes a second input terminal, a second output terminal, and a second control terminal. The second input terminal is connected to the RF branch, and the second output terminal is connected to the ground point. The second switch module is configured to connect the second input terminal and the second output terminal according to a second control signal received by the second control terminal.

[0073] Wherein, the grounding point is located between the RF transmitting unit and / or the RF receiving unit in the RF branch and the second output end;

[0074] There is coupling feeding between at least two radio frequency branches among the multiple radio frequency branches.

[0075] Here, the coupling feed point can be the spatial signal coupling between two adjacent RF branches in the physical wiring. An RF branch sends or receives an RF signal of a preset frequency to form an electromagnetic field area, which can be spatially coupled to the circuit trace connected to the other RF branch.

[0076] For example, when the RF transmission unit of the RF branch 132 is operating, the RF transmission signal (interference signal) may be coupled to the RF branch 131 through the circuit trace connected to the RF branch 131. In this case, the interference signal can be directed to the ground point by connecting the second input terminal 151 and the second output terminal 152 provided at the RF branch connection, thereby effectively reducing the adverse effects of the interference signal on the RF branch 131.

[0077] In an embodiment of the present application, after the noise signal generated by the power supply module is coupled and crosstalked to the second input end, the noise signal generated by the coupled feed can be directly introduced into the grounding point using the conductive second output end, so that the noise information has no chance to crosstalk to the RF receiving unit of the RF branch, thereby avoiding deterioration of the receiving sensitivity.

[0078] The related technology requires two PMICs to power the PA in the ENDC combination. Figure 5 A schematic diagram of a radio frequency circuit of related technology, such as Figure 5As shown, PA1 and PA3 work simultaneously and use PMIC1 and PMIC2. However, at this time, all four RX channels (RX1 and RX2 on RF2 of PA1, and RX3 and RX4 on RF2 of PA4) are working. Therefore, the noise on VCC of PA1 will pass through VCC and interfere with RX1 and RX2 on RF2 of PA1. Similarly, the noise on VCC of PA3 will pass through VCC and interfere with RX3 and RX4 on RF2 of PA4.

[0079] Figure 6 A schematic diagram of a radio frequency circuit provided in an embodiment of the present application is shown in FIG. Figure 6 As shown, the radio frequency circuit includes a switch, PA1 and PA2, wherein,

[0080] Here, the radio frequency branch may be powered by a PMIC.

[0081] A switch is added between the PMIC and the two PAs (PA1 and PA2). The switch structure and working principle are as follows:

[0082] The switch components include: node 1, node 2, node 3, node 4 and node 5, and two ground points (GND) for short-circuiting node 3 and node 4.

[0083] When PA1's TX is working and PA2's RX is only working, nodes 1 and 2 are connected, and node 4 is connected to GND (i.e., short-circuited to ground). In this way, the noise generated by PA1's VCC is coupled to node 4 through crosstalk and then directly introduced to ground. It has no chance to crosstalk to PA2's RX circuit, thus preventing PA2's receiving sensitivity from deteriorating.

[0084] When the TX of PA2 needs to work, node 4 is disconnected from GND and node 1 is connected to node 5, so that the TX of PA2 can work normally.

[0085] It should be understood that "one embodiment" or "an embodiment" mentioned throughout the specification means that the specific features, structures or characteristics related to the embodiment are included in at least one embodiment of the present application. Therefore, "in one embodiment" or "in an embodiment" appearing throughout the specification does not necessarily refer to the same embodiment. In addition, these specific features, structures or characteristics can be combined in one or more embodiments in any suitable manner. It should be understood that in the various embodiments of the present application, the size of the serial numbers of the above-mentioned processes does not mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present application. The above-mentioned serial numbers of the embodiments of the present application are for description only and do not represent the advantages and disadvantages of the embodiments.

[0086] It should be noted that, in this document, the terms "comprises," "includes," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a process, method, article, or apparatus comprising a series of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of other identical elements in the process, method, article, or apparatus comprising the element.

[0087] The above is merely an embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this application should be included in the scope of protection of this application. Therefore, the scope of protection of this application should be based on the scope of protection of the claims.

Claims

1. A radio frequency circuit, characterized in that: The radio frequency circuit comprises: Power supply end; A first switch module, the first switch module comprising a first input terminal, a plurality of first output terminals and a first control terminal, the first input terminal being connected to the power supply terminal, the first switch module being used to conduct the first input terminal with at least one of the plurality of first output terminals according to a first control signal received by the first control terminal; A plurality of radio frequency branches, wherein the plurality of radio frequency branches are respectively connected to the plurality of first output ends, a first part of the radio frequency branches in the plurality of radio frequency branches comprises a radio frequency transmitting unit, and a second part of the radio frequency branches in the plurality of radio frequency branches comprises a radio frequency receiving unit.

2. The radio frequency circuit according to claim 1, characterized in that: The radio frequency circuit also includes: A second switch module, the second switch module includes a second input terminal, a second output terminal and a second control terminal, the second input terminal is connected to the RF branch, the second output terminal is connected to the ground point, and the second switch module is used to connect the second input terminal and the second output terminal according to a second control signal received by the second control terminal. Wherein, the grounding point is located between the RF transmitting unit and / or the RF receiving unit in the RF branch and the second output end.

3. The radio frequency circuit according to claim 2, characterized in that: The radio frequency circuit also includes: A control module, wherein the control module is connected to the first control end and / or the second control end, and the control module is used to send the first control signal and / or the second control signal.

4. The radio frequency circuit according to claim 3, characterized in that: The control module is a radio frequency transceiver, and the control module is also used to receive and / or send radio frequency signals.

5. The radio frequency circuit according to claim 4, characterized in that: The control module is connected to the first control end and / or the second control end via a mobile industry processor interface MIPI bus.

6. The radio frequency circuit according to claim 1, characterized in that: Setting the first input end of the first switch module to be connected to the first output end of at least one target RF branch; The first output terminal connected to other radio frequency branches except the at least one target radio frequency branch is set to be disconnected from the first input terminal.

7. The radio frequency circuit according to claim 1, characterized in that: Setting the two first output ends of the first switch module to be connected to the first RF branch and the second RF branch respectively; When the first control signal turns on the first output end connected to the first RF branch and the first input end, the first output end connected to the second RF branch and the first input end are disconnected; wherein the first RF branch has the first part of the RF branch, and the second RF branch has the second part of the RF branch.

8. The radio frequency circuit according to claim 2, characterized in that: Setting the two first output ends of the first switch module to be connected to the first RF branch and the second RF branch respectively; Setting two second input ends of the two second switch modules to be connected to the first RF branch and the second RF branch respectively; When the first control signal connects the first output end connected to the first RF branch and the first input end, disconnecting the first output end connected to the second RF branch and the first input end; When the second control signal disconnects the second input end and the second output end connected to the first RF branch, the second input end and the second output end connected to the second RF branch are turned on; wherein the first RF branch has the first part of the RF branch, and the second RF branch has the second part of the RF branch.

9. An electronic device, characterized in that: The electronic device comprises: Power supply module; a first switch module, the first switch module comprising a first input terminal, a plurality of first output terminals and a first control terminal, the first input terminal being connected to the power supply terminal of the power supply module, the first switch module being configured to conduct the first input terminal with at least one of the plurality of first output terminals according to a first control signal received by the first control terminal; A plurality of radio frequency branches, wherein the plurality of radio frequency branches are respectively connected to the plurality of first output ends, a first part of the radio frequency branches in the plurality of radio frequency branches comprises a radio frequency transmitting unit, and a second part of the radio frequency branches in the plurality of radio frequency branches comprises a radio frequency receiving unit.

10. The electronic device according to claim 9, characterized in that: The electronic device further comprises: A second switch module, the second switch module includes a second input terminal, a second output terminal and a second control terminal, the second input terminal is connected to the RF branch, the second output terminal is connected to the ground point, and the second switch module is used to connect the second input terminal and the second output terminal according to a second control signal received by the second control terminal. Wherein, the grounding point is located between the RF transmitting unit and / or the RF receiving unit in the RF branch and the second output end; At least two of the multiple radio frequency branches have coupling feeding.

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