Communication module and electronic equipment

Abstract

The utility model provides a communication module and electronic equipment. The communication module comprises a radio frequency transceiver, a power amplifier and an access module, and the access module is connected between the radio frequency transceiver and the power amplifier. The access module comprises at least one straight-through access, at least one attenuation access and a switch unit, the switch unit is used for selectively conducting a target access, so that the radio frequency transceiver and the power amplifier are connected through the target access, and the target access is one of the at least one straight-through access and the at least one attenuation access; wherein the attenuation path is provided with an attenuation network, and the attenuation network is used for carrying out attenuation processing on the power of a radio frequency signal output by the radio frequency transceiver and transmitting the radio frequency signal after attenuation processing to the power amplifier when the radio frequency transceiver and the power amplifier are connected through the attenuation path. The communication module can realize smaller transmitting power, is low in cost, and improves the product competitiveness.

Description

Technical Field

[0001] The utility model relates to the technical field of communications, and in particular to a communication module and electronic equipment. Background Art

[0002] In the related art, when the gain level of the power amplifier is controlled by adjusting the power supply voltage of the power amplifier, the power amplifier needs to enter the low gain mode at a low voltage. The existing communication module will set a DC-DC (direct current-direct current) circuit to adjust the power supply voltage of the power amplifier so that the power amplifier enters the low gain mode, thereby achieving a lower transmission power. However, setting a DC-DC circuit in the communication module requires adding corresponding DC-DC devices and peripheral circuits, which not only increases the cost, but also takes up the layout space of other circuits in the module. Utility Model Content

[0003] The utility model aims to solve at least one of the problems existing in the prior art. To this end, the utility model provides a communication module and an electronic device, wherein the communication module can achieve a relatively small transmission power, does not need to set up a DC-DC circuit, has a low cost, does not occupy a large arrangement space, and improves the product competitiveness.

[0004] In order to achieve the above-mentioned object, on the one hand, the utility model provides a communication module, including a radio frequency transceiver, a power amplifier and a path module, wherein the path module is connected between the radio frequency transceiver and the power amplifier;

[0005] The path module includes at least one straight path, at least one attenuation path and a switch unit, wherein the switch unit is used to selectively conduct a target path so that the RF transceiver and the power amplifier are connected through the target path, and the target path is one of the at least one straight path and the at least one attenuation path;

[0006] The attenuation path is provided with an attenuation network, and the attenuation network is used to attenuate the power of the RF signal output by the RF transceiver and transmit the attenuated RF signal to the power amplifier when the RF transceiver and the power amplifier are connected through the attenuation path.

[0007] In one embodiment, the communication module further includes a controller, wherein the controller is connected to the switch unit, and the controller is used to control the switch unit to selectively conduct the target path.

[0008] In one embodiment, the controller controls the switch unit via GPIO.

[0009] In one embodiment, the switch unit includes a first time-division switch and a second time-division switch, the first time-division switch includes a first electrical connection member, a first connection end and a plurality of second connection ends, and the second time-division switch includes a second electrical connection member, a third connection end and a plurality of fourth connection ends;

[0010] The first connection end is connected to the output end of the RF transceiver and the end of the first electrical connection member close to the RF transceiver at the same time, the plurality of second connection ends are connected to the at least one straight-through path and the end of the at least one attenuation path close to the RF transceiver in a one-to-one correspondence, the third connection end is connected to the input end of the power amplifier and the end of the second electrical connection member close to the power amplifier at the same time, and the plurality of fourth connection ends are connected to the at least one straight-through path and the end of the at least one attenuation path close to the power amplifier in a one-to-one correspondence;

[0011] Among them, the end of the first electrical connector away from the RF transceiver is used to selectively connect to the second connection end corresponding to the target path, and the end of the second electrical connector away from the power amplifier is used to selectively connect to the fourth connection end corresponding to the target path, so that the RF transceiver and the power amplifier are connected through the target path.

[0012] In one embodiment, the switch unit includes a first time-division switch, and the first time-division switch includes a first electrical connector, a first connection end, and a plurality of second connection ends;

[0013] The first connection end is simultaneously connected to the output end of the RF transceiver and an end of the first electrical connector close to the RF transceiver, the multiple second connection ends are connected one-to-one to an end of the at least one straight-through path and the at least one attenuation path close to the RF transceiver, and an end of the at least one straight-through path and the at least one attenuation path away from the RF transceiver is connected to the power amplifier, and an end of the first electrical connector away from the RF transceiver is used to selectively connect to the second connection end corresponding to the target path, so that the RF transceiver and the power amplifier are connected through the target path.

[0014] In one embodiment, the switch unit includes a second time-division switch, and the second time-division switch includes a second electrical connector, a third connection terminal, and a plurality of fourth connection terminals;

[0015] The third connection end is simultaneously connected to the input end of the power amplifier and the end of the second electrical connector close to the power amplifier. The multiple fourth connection ends are connected one-to-one to the at least one straight-through path and the at least one attenuation path close to the power amplifier. The at least one straight-through path and the at least one attenuation path are connected to the RF transceiver at their ends away from the power amplifier. The end of the second electrical connector away from the power amplifier is used to selectively connect to the fourth connection end corresponding to the target path, so that the RF transceiver is connected to the power amplifier through the target path.

[0016] In one embodiment, the switch unit includes at least one first single-pole single-throw switch and at least one second single-pole single-throw switch; each of the through paths is connected in series with one of the first single-pole single-throw switches, and the through paths and the first single-pole single-throw switches connected in series are connected between the RF transceiver and the power amplifier; each of the attenuation paths is connected in series with one of the second single-pole single-throw switches on at least one side of the attenuation network, and the through paths and the second single-pole single-throw switches connected in series are connected between the RF transceiver and the power amplifier;

[0017] When the switch corresponding to the target path in the at least one first single-pole single-throw switch and the at least one second single-pole single-throw switch is closed, the other switches are in an open state, so that the RF transceiver is connected to the power amplifier through the target path.

[0018] In one embodiment, the passage module includes at least two straight passages;

[0019] And / or, the path module includes at least two attenuation paths, and the attenuation amounts of the power of the radio frequency signal output by the radio frequency transceiver are different for each of the attenuation paths.

[0020] On the other hand, the utility model further provides an electronic device, comprising the communication module of any one of the above embodiments.

[0021] In the communication module and electronic device provided by the utility model, the communication module adds a path module between the RF transceiver and the power amplifier, the path module includes at least one straight path, at least one attenuation path and a switch unit, the switch unit is used to selectively conduct the target path so that the RF transceiver and the power amplifier are connected through the target path, wherein the attenuation path is provided with an attenuation network, and the attenuation network can attenuate the power of the RF signal output by the RF transceiver and transmit the attenuated RF signal to the power amplifier when the RF transceiver and the power amplifier are connected through the attenuation path, so that the communication module can achieve a smaller transmission power. Compared with the existing communication module, the communication module provided by the utility model does not need to set a DC-DC circuit, has low cost, does not occupy a large layout space, and improves product competitiveness. In addition, when the RF transceiver is connected to the power amplifier through the direct path, the direct path does not process the RF signal output by the RF transceiver, and directly transmits the RF signal to the power amplifier, and the power amplifier works in a high gain mode, so that the communication module can achieve a larger transmission power. Therefore, the communication module provided by the utility model can achieve both the application requirements of a smaller transmission power and the application requirements of a larger transmission power, and has a wide range of applications.

[0022] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solution of the embodiments of the utility model, the drawings required for use in the implementation mode will be briefly introduced below. Obviously, the drawings described below are some implementation modes of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0024] Figure 1 It is a structural block diagram of a communication module provided in one embodiment of the present utility model.

[0025] Figure 2 The figure is a structural block diagram of a radio frequency transceiver, a power amplifier and a path module in one embodiment.

[0026] Figure 3 It is a structural block diagram of a radio frequency transceiver, a power amplifier and a path module in another embodiment.

[0027] Figure 4It is a structural block diagram of a communication module provided by another embodiment of the utility model.

[0028] Figure 5 It is a structural block diagram of an electronic device provided by one embodiment of the utility model.

[0029] Description of main reference numerals:

[0030] 1000-electronic device; 100-communication module; 10-RF transceiver; 20-power amplifier; 30-pathway module; 31-through path; 32-attenuation path; 33-switch unit; 331-first time-division switch; 3311-first connection end; 3312-second connection end; 3313-first electrical connection piece; 332-second time-division switch; 3321-third connection end; 3322-fourth connection end; 3323-second electrical connection piece; 333-first single-pole single-throw switch; 334-second single-pole single-throw switch; 40-controller. DETAILED DESCRIPTION

[0031] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0032] It should be noted that in the description of the present utility model, the terms "first", "second", "third", etc. are used to distinguish different objects rather than to describe a specific order, and the term "multiple" refers to at least two, and therefore cannot be understood as a limitation on the present application. In addition, unless otherwise clearly specified and limited, the term "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through other elements, or it can be internal communication between two elements; it can be a communication connection or an electrical connection, wherein both communication connection and electrical connection also include direct connection or indirect connection through other elements. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0033] See also Figure 1 The embodiment of the utility model provides a communication module 100, comprising a radio frequency transceiver 10, a power amplifier 20 and a path module 30, wherein the path module 30 is connected between the radio frequency transceiver 10 and the power amplifier 20. Figure 1As shown, the path module 30 includes at least one straight path 31, at least one attenuation path 32 and a switch unit 33. The switch unit 33 is used to selectively conduct a target path so that the RF transceiver 10 and the power amplifier 20 are connected through the target path, and the target path is one of the at least one straight path 31 and the at least one attenuation path 32. In other words, in the embodiment of the utility model, the switch unit 33 selects to conduct any one of the at least one straight path 31 and the at least one attenuation path 32, so that the RF signal output by the RF transceiver 10 can be transmitted to the power amplifier 20 through the conducted path, so that the power amplifier 20 performs gain processing (also referred to as amplification processing) on ​​the received RF signal, and the communication module 100 finally transmits the RF signal after the gain of the power amplifier 20.

[0034] In the embodiment of the utility model, the RF transceiver 10 and the power amplifier 20 can respectively adopt the existing RF transceiver and power amplifier, and the specific structure and working principle are not described in detail here. Similar to the existing communication module, the communication module 100 can also include an antenna connected to the power amplifier 20, and the RF signal after the power amplifier 20 gains is transmitted to the antenna, and then the RF signal is transmitted through the antenna.

[0035] It should be emphasized that in the embodiment of the utility model, the attenuation path 32 is provided with an attenuation network, and the attenuation network is used to attenuate the power of the RF signal output by the RF transceiver 10 and transmit the attenuated RF signal to the power amplifier 20 when the RF transceiver 10 and the power amplifier 20 are connected through the attenuation path 32, so that the communication module 100 can achieve a smaller transmission power. Compared with the existing communication module, the communication module 100 provided by the utility model does not need to set up a DC-DC circuit, has low cost, does not occupy a large layout space, and improves product competitiveness. In addition, when the RF transceiver 10 and the power amplifier 20 are connected through the direct path 31, the direct path 31 will not perform any processing on the RF signal output by the RF transceiver 10, and directly transmits the RF signal to the power amplifier 20, so that the communication module 100 can achieve a larger transmission power. Therefore, the communication module 100 provided by the present invention can meet both application requirements of relatively low transmission power and application requirements of relatively high transmission power, and has a wide range of applications.

[0036] The through path 31 may be understood as a transmission path formed by a wire without any device.

[0037] Preferably, in one embodiment of the present invention, the power amplifier 20 can operate in a low gain mode and a high gain mode; when the communication module 100 operates at low power, the power amplifier 20 operates in the low gain mode, and the RF transceiver 10 is connected to the power amplifier 20 through the attenuation path 32, and the attenuation network attenuates the power of the RF signal output by the RF transceiver 10, and the power amplifier 20 operating in the low gain mode can output a RF signal with lower power after receiving the RF signal after attenuation. signal, so that the communication module 100 can transmit a smaller power; when the communication module 100 operates at high power, the power amplifier 20 operates in a high gain mode, and the RF transceiver 10 is connected to the power amplifier 20 through the direct path 31, and the direct path 31 does not perform any processing on the RF signal output by the RF transceiver 10. The power amplifier 20 operating in the high gain mode can output a RF signal with a higher power after receiving the RF signal with almost no loss, so that the communication module 100 can transmit a higher power.

[0038] Alternatively, if Figure 1 As shown, in one embodiment of the present utility model, the communication module 100 may further include a controller 40, the controller 40 is connected to the switch unit 33, and the controller 40 is used to output a control signal to control the switch unit 33 to selectively conduct the target path. The controller 40 may be, but is not limited to, an existing control device such as a baseband processor. In other embodiments, the switch unit 33 may be directly connected to the RF transceiver 10, and the RF transceiver 10 may synchronously output a control signal to the switch unit 33 when outputting a RF signal, so as to control the switch unit 33 to selectively conduct the target path.

[0039] In one embodiment of the present invention, the controller 40 can control the switch unit 33 through GPIO (General-Purpose IO ports). Specifically, the controller 40 outputs a first voltage signal (such as a high voltage signal) as a control signal through GPIO, and the switch unit 33 is closed after receiving the control signal to turn on the corresponding path; conversely, the controller 40 outputs a second voltage signal (such as a low voltage signal) as a control signal through GPIO, and the switch unit 33 is opened after receiving the control signal to disconnect the path. It is not difficult to understand that the controller 40 or the RF transceiver 10 can also use other existing technologies to output a control signal to control the switch unit 33, which will not be elaborated.

[0040] Also optionally, in one embodiment of the utility model, the attenuation network adopts a π-type attenuation network or a T-type attenuation network composed of multiple resistors. Compared with the DC-DC circuit, the attenuation network composed of multiple resistors has fewer components and a simpler structure, which is conducive to reducing costs and reducing the occupied layout space. Of course, in other embodiments, the attenuation network can also be a digital attenuator, which is not limited to this. Among them, the attenuation amount (or attenuation multiple N) of the power of the RF signal output by the RF transceiver 10 can be set by the attenuation network according to actual needs, which will not be elaborated.

[0041] See also Figure 2 In one embodiment of the present utility model, the switch unit 33 includes a first time-division switch 331 and a second time-division switch 332, the first time-division switch 331 includes a first electrical connection member 3313, a first connection end 3311 and multiple second connection ends 3312, and the second time-division switch 332 includes a second electrical connection member 3323, a third connection end 3321 and multiple fourth connection ends 3322. Among them, the first connection end 3311 is simultaneously connected to the output end of the RF transceiver 10 and the end of the first electrical connector 3313 close to the RF transceiver 10, the multiple second connection ends 3312 are connected one-to-one to the at least one straight-through path 31 and the end of the at least one attenuation path 32 close to the RF transceiver 10, the third connection end 3321 is simultaneously connected to the input end of the power amplifier 20 and the end of the second electrical connector 3323 close to the power amplifier 20, and the multiple fourth connection ends 3322 are connected one-to-one to the at least one straight-through path 31 and the end of the at least one attenuation path 32 close to the power amplifier 20, that is, the end of each path close to the RF transceiver 10 is correspondingly connected to a second connection end 3312, and the end of each path close to the power amplifier 20 is correspondingly connected to a fourth connection end 3322.

[0042] exist Figure 2In the example, the end of the first electrical connector 3313 away from the RF transceiver 10 is used to selectively connect the second connection end 3312 corresponding to the target path, and the end of the second electrical connector 3323 away from the power amplifier 20 is used to selectively connect the fourth connection end 3322 corresponding to the target path, so that the RF transceiver 10 and the power amplifier 20 are connected through the target path. In other words, in this embodiment, when the first time-division switch 331 and the second time-division switch 332 receive a control signal, the first electrical connector 3313 and the second electrical connector 3323 will be electrically connected to the opposite ends of the same path, that is, the target path. In this embodiment, a switch is provided at the opposite ends of each path, and the path can be turned on only when both switches are electrically connected to the path, which helps to improve the safety and reliability of selecting the target path.

[0043] It should be noted that in Figure 1 and Figure 2 In the example, the number of the through passage 31 and the attenuation passage 32 are both one, and the first time-division switch 331 and the second time-division switch 332 are both SPDT switches, wherein the single terminal of the SPDT switch can be used as the first connection terminal 3311 or the third connection terminal 3321, and the two selection terminals of the SPDT switch can be used as the multiple second connection terminals 3312 or the multiple fourth connection terminals 3322. In other embodiments, when the number of the through passage 31 and / or the attenuation passage 32 is multiple, the first time-division switch 331 and the second time-division switch 332 respectively use single-pole multi-throw switches, where multiple means three or more.

[0044] In a possible implementation, the switch unit 33 may include only the first time-division switch 331, and the end of the at least one through path 31 and the at least one attenuation path 32 away from the RF transceiver 10 is directly connected to the power amplifier 20. In this way, the end of the first electrical connector 3313 away from the RF transceiver 10 is used to selectively connect to the second connection end 3312 corresponding to the target path, and the RF transceiver 10 and the power amplifier 20 can also be connected through the target path.

[0045] In another possible implementation, the switch unit 33 may also only include the second time-division switch 332, and the end of the at least one straight-through path 31 and the at least one attenuation path 32 away from the power amplifier 20 is directly connected to the RF transceiver 10. In this way, the end of the second electrical connector 3323 away from the power amplifier 20 is used to selectively connect to the fourth connection end 3322 corresponding to the target path, which can also enable the RF transceiver 10 to be connected to the power amplifier 20 through the target path.

[0046] It can be understood that in the above two possible implementations, a switch is only required at one end of each path to selectively conduct the target path, thereby saving switch costs and simplifying the structure of the path module 30 .

[0047] See also Figure 3 In another embodiment of the present invention, the switch unit 33 may include at least one first single-pole single-throw switch 333 and at least one second single-pole single-throw switch 334. Figure 3 As shown, each of the through paths 31 is connected in series with a first single-pole single-throw switch 333, and the through paths 31 and the first single-pole single-throw switch 333 connected in series are connected between the RF transceiver 10 and the power amplifier 20, and whether the through paths 31 are turned on can be controlled by controlling the opening and closing of the first single-pole single-throw switch 333; each of the attenuation paths 32 is connected in series with a second single-pole single-throw switch 334 on at least one side of the attenuation network, and the through paths 31 and the second single-pole single-throw switch 334 connected in series are connected between the RF transceiver 10 and the power amplifier 20, so that whether the attenuation paths 32 are turned on can be controlled by controlling the opening and closing of the second single-pole single-throw switch 334. It should be noted that, in the present embodiment, when the switch corresponding to the target path in the at least one first single-pole single-throw switch 333 and the at least one second single-pole single-throw switch 334 is closed, the other switches are in an open state, that is, at the same time only the switch connected in series in the target path is in a closed state, so that the RF transceiver 10 is connected to the power amplifier 20 through the target path.

[0048] Optionally, in Figure 3 In the example, the through path 31 can be connected in series with the first single-pole single-throw switch 333 on the side close to the RF transceiver 10, or connected in series with the first single-pole single-throw switch 333 on the side close to the power amplifier 20. It is low cost to set only one switch.

[0049] Optionally, in Figure 3In the example, the attenuation path 32 is connected in series with a second single-pole single-throw switch 334 on both opposite sides of the attenuation network, which can not only control the conduction or shutoff of the attenuation path 32, but also avoid the problem that when the switch is only set on one side of the attenuation network, the other side of the attenuation network is connected to the RF transceiver 10 or the power amplifier 20, and there may be a problem that the components in the attenuation network interfere with the RF signal.

[0050] See also Figure 4 In another embodiment of the present invention, the passage module 30 includes at least two straight passages 31 and at least two attenuation passages 32 (eg Figure 4 The first attenuation path 32a and the second attenuation path 32b shown in the figure are different in attenuation of the power of the RF signal output by the RF transceiver 10. It is not difficult to understand that in this embodiment, by providing at least two straight-through paths 31 in the path module 30, the defect that there is only one straight-through path 31 and the straight-through path 31 cannot be selected as the target path when the straight-through path 31 is open can be avoided, and by providing at least two attenuation paths 32 with different attenuation in the path module 30, the attenuation paths 32 with different attenuation can be selected as the target path according to different requirements, so that the communication module 100 can achieve a wider range of transmission power, which helps to further expand the scope of application of the communication module 100.

[0051] Of course, in other embodiments, the passage module 30 may include a straight passage 31 and at least two attenuation passages 32 with different attenuation amounts, or may include one attenuation passage 32 and at least two straight passages 31, which is not limited to this.

[0052] For further information, see Figure 5 The embodiment of the utility model further provides an electronic device 1000, which includes a communication module. The communication module can be the communication module 100 described in any of the above embodiments, and thus at least has all the beneficial effects brought by the technical solutions of the above embodiments. For more specific descriptions, please refer to the relevant contents of the above embodiments, which will not be repeated here.

[0053] It is understandable that, similar to existing electronic devices, the electronic device 1000 may also include at least one of a processor, a memory, a display screen, and other electronic devices, which will not be described in detail. The electronic device 1000 may be, but is not limited to, a mobile phone, a tablet computer, a laptop computer, a PDA, a personal digital assistant, a portable media player, a wearable device, a navigation device, a smart bracelet, a pedometer, a desktop computer, and other electronic devices.

[0054] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0055] In the description of this specification, the description with reference to the terms "embodiment", "specific embodiment", "example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0056] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A communication module, characterized in that: It includes a radio frequency transceiver, a power amplifier and a path module, wherein the path module is connected between the radio frequency transceiver and the power amplifier; The path module includes at least one straight path, at least one attenuation path and a switch unit, wherein the switch unit is used to selectively conduct a target path so that the RF transceiver and the power amplifier are connected through the target path, and the target path is one of the at least one straight path and the at least one attenuation path; The attenuation path is provided with an attenuation network, and the attenuation network is used to attenuate the power of the RF signal output by the RF transceiver and transmit the attenuated RF signal to the power amplifier when the RF transceiver and the power amplifier are connected through the attenuation path.

2. The communication module according to claim 1, characterized in that: The device also includes a controller connected to the switch unit, and configured to control the switch unit to selectively conduct the target path.

3. The communication module according to claim 2, characterized in that: The controller controls the switch unit through GPIO.

4. The communication module according to any one of claims 1 to 3, characterized in that: The switch unit includes a first time-division switch and a second time-division switch, the first time-division switch includes a first electrical connector, a first connection end and a plurality of second connection ends, the second time-division switch includes a second electrical connector, a third connection end and a plurality of fourth connection ends; The first connection end is connected to the output end of the RF transceiver and the end of the first electrical connection member close to the RF transceiver at the same time, the plurality of second connection ends are connected to the at least one straight-through path and the end of the at least one attenuation path close to the RF transceiver in a one-to-one correspondence, the third connection end is connected to the input end of the power amplifier and the end of the second electrical connection member close to the power amplifier at the same time, and the plurality of fourth connection ends are connected to the at least one straight-through path and the end of the at least one attenuation path close to the power amplifier in a one-to-one correspondence; Among them, the end of the first electrical connector away from the RF transceiver is used to selectively connect to the second connection end corresponding to the target path, and the end of the second electrical connector away from the power amplifier is used to selectively connect to the fourth connection end corresponding to the target path, so that the RF transceiver and the power amplifier are connected through the target path.

5. The communication module according to any one of claims 1 to 3, characterized in that: The switch unit includes a first time-division switch, and the first time-division switch includes a first electrical connector, a first connection end, and a plurality of second connection ends; The first connection end is simultaneously connected to the output end of the RF transceiver and an end of the first electrical connector close to the RF transceiver, the multiple second connection ends are connected one-to-one to an end of the at least one straight-through path and the at least one attenuation path close to the RF transceiver, and an end of the at least one straight-through path and the at least one attenuation path away from the RF transceiver is connected to the power amplifier, and an end of the first electrical connector away from the RF transceiver is used to selectively connect to the second connection end corresponding to the target path, so that the RF transceiver and the power amplifier are connected through the target path.

6. The communication module according to any one of claims 1 to 3, characterized in that: The switch unit includes a second time-division switch, and the second time-division switch includes a second electrical connector, a third connection terminal, and a plurality of fourth connection terminals; The third connection end is simultaneously connected to the input end of the power amplifier and the end of the second electrical connector close to the power amplifier. The multiple fourth connection ends are connected one-to-one to the at least one straight-through path and the at least one attenuation path close to the power amplifier. The at least one straight-through path and the at least one attenuation path are connected to the RF transceiver at their ends away from the power amplifier. The end of the second electrical connector away from the power amplifier is used to selectively connect to the fourth connection end corresponding to the target path, so that the RF transceiver is connected to the power amplifier through the target path.

7. The communication module according to any one of claims 1 to 3, characterized in that: The switch unit includes at least one first single-pole single-throw switch and at least one second single-pole single-throw switch; each of the through paths is connected in series with one of the first single-pole single-throw switches, and the through paths and the first single-pole single-throw switches connected in series are connected between the RF transceiver and the power amplifier; each of the attenuation paths is connected in series with one of the second single-pole single-throw switches on at least one side of the attenuation network, and the through paths and the second single-pole single-throw switches connected in series are connected between the RF transceiver and the power amplifier; When the switch corresponding to the target path in the at least one first single-pole single-throw switch and the at least one second single-pole single-throw switch is closed, the other switches are in an open state, so that the RF transceiver is connected to the power amplifier through the target path.

8. The communication module according to any one of claims 1 to 3, characterized in that: The passage module includes at least two straight passages; And / or, the path module includes at least two attenuation paths, and the attenuation amounts of the power of the radio frequency signal output by the radio frequency transceiver are different for each of the attenuation paths.

9. An electronic device, characterized in that: Comprising a communication module as described in any one of claims 1 to 8.

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