Antenna module and electronic device

Abstract

The present disclosure provides an antenna module and an electronic device. The antenna module comprises a plurality of antennas and a switch switching unit; the switch switching unit is composed of a double-pole double-throw switch and a single-pole multi-throw switch; the switch switching unit is used to provide a transmission path of an aggregated antenna signal. In this embodiment, the double-pole double-throw switch and the single-pole multi-throw switch are used to realize the switch switching unit, the antenna carrier aggregation function can be realized, the number of devices in the antenna module can be reduced, and the cost of the antenna module can be reduced.

Description

Technical Field

[0001] This disclosure relates to the field of antenna technology, and more particularly to an antenna module and electronic device. Background Technology

[0002] Electronic devices are typically equipped with multiple antennas, some of which may operate simultaneously, necessitating increased speeds for transmitting and receiving information.

[0003] Related technologies employ carrier aggregation (CA) to improve internet speed, which involves binding multiple carriers together to increase internet speed.

[0004] However, the antenna modules of electronic devices in related technologies are implemented using multi-pole multi-throw switches, resulting in a large size. Summary of the Invention

[0005] This disclosure provides an antenna module and an electronic device to solve the above-mentioned technical problems.

[0006] According to a first aspect of this disclosure, an antenna module is provided, comprising: a plurality of antennas and a switch switching unit; the switch switching unit is composed of a double-pole double-throw switch and a single-pole multi-throw switch;

[0007] The switching unit is used to provide a transmission path for the aggregated antenna signal.

[0008] Optionally, the antenna module further includes a first duplex filter and a first antenna; the switch switching unit, the first antenna, and the first duplex filter are used to form a first receiving path for receiving antenna signals of the first frequency band.

[0009] Optionally, the switch switching unit includes a first single-pole multi-throw switch, a second single-pole multi-throw switch, and a first double-pole double-throw switch;

[0010] The first terminal of the first single-pole multi-throw switch is electrically connected to the first antenna, and the second terminal of the first single-pole multi-throw switch is electrically connected to the first terminal of the first double-pole double-throw switch.

[0011] The second terminal of the first double-pole double-throw switch is electrically connected to the first terminal of the first duplex filter; the second terminal of the first duplex filter outputs an antenna signal of the first frequency band.

[0012] The path between the first antenna and the second end of the first duplex filter constitutes the first receiving path.

[0013] Optionally, the third terminal of the first duplex filter receives the antenna signal of the first frequency band, and the path between the third terminal of the first duplex filter and the first antenna serves as the first transmission path.

[0014] Optionally, the antenna module further includes a second duplex filter; the switch unit, the first antenna, and the second duplex filter are used to form a second receiving path for transmitting antenna signals of the second frequency band and a second transmitting path for transmitting antenna signals of the second frequency band.

[0015] Optionally, the switch switching unit further includes a second double-pole double-throw switch;

[0016] The first terminal of the second double-pole double-throw switch is electrically connected to the third terminal of the first single-pole multi-throw switch, and the second terminal of the second double-pole double-throw switch is electrically connected to the third terminal of the first double-pole double-throw switch; the first terminal of the first single-pole multi-throw switch is electrically connected to the first antenna.

[0017] The first end of the second duplex filter is electrically connected to the fourth end of the first double-pole double-throw switch, the second end of the second duplex filter is used to output the antenna signal of the second frequency band, and the third end of the second duplex filter is used to receive the antenna signal of the second frequency band.

[0018] The second end of the second duplex filter forms the second receiving path with the first antenna, and the third end of the second duplex filter forms the second transmitting path with the first antenna.

[0019] Optionally, the antenna module further includes a third duplex filter and a second antenna; the switch unit, the third duplex filter, and the second antenna are used to form a third receiving path for transmitting antenna signals in the third frequency band and a third transmitting path for transmitting antenna signals in the third frequency band.

[0020] Optionally, the third terminal of the second double-pole double-throw switch in the switching unit is electrically connected to the second antenna, and the fourth terminal of the second double-pole double-throw switch is electrically connected to the first terminal of the third duplex filter.

[0021] The second end of the third duplex filter is used to output the antenna signal of the third frequency band, and the third end of the third duplex filter is used to receive the antenna signal of the third frequency band.

[0022] The third receiving path is formed between the second end of the third duplex filter and the second antenna, and the third transmitting path is formed between the third end of the third duplex filter and the second antenna.

[0023] Optionally, the second antenna includes a main antenna and a diversity antenna; the switch switching unit further includes a third double-pole double-throw switch;

[0024] The first terminal of the third double-pole double-throw switch is electrically connected to the main antenna, the second terminal of the third double-pole double-throw switch is electrically connected to the third terminal of the second double-pole double-throw switch, the third terminal of the third double-pole double-throw switch is electrically connected to the diversity antenna, and the fourth terminal of the third double-pole double-throw switch is used to receive the diversity antenna signal.

[0025] Optionally, the antenna module further includes a coupler; the coupler is connected in series between the second terminal of the third double-pole double-throw switch and the third terminal of the second double-pole double-throw switch, and is used to detect the real-time power of the antenna signal of the third transmission path, the real-time power being used as a reference value for correcting the transmission power of the antenna module.

[0026] According to a second aspect of this disclosure, an electronic device is provided, comprising: an antenna module as described in any of the first aspects.

[0027] The technical solutions provided by the embodiments of this disclosure may include the following beneficial effects:

[0028] The antenna module provided in this embodiment includes: multiple antennas and a switch switching unit; the switch switching unit is composed of a double-pole double-throw switch and a single-pole multi-throw switch; the switch switching unit is used to provide a transmission path for aggregated antenna signals. Thus, by using double-pole double-throw switches and single-pole multi-throw switches to implement the switch switching unit in this embodiment, antenna carrier aggregation function can be achieved, reducing the number of components in the antenna module and lowering the cost of the antenna module.

[0029] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit this disclosure. Attached Figure Description

[0030] Figures 1-9 These are block diagrams of an antenna module according to an embodiment of the present disclosure.

[0031] Figure 10 This is a block diagram of an electronic device according to an embodiment of the present disclosure. Detailed Implementation

[0032] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numerals in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this disclosure. Rather, they are merely examples of apparatuses consistent with some aspects of this disclosure as detailed in the appended claims.

[0033] Considering that the antenna module in the relevant technology uses multi-pole multi-throw (3P3T) and Phase3 TXM switches to implement the carrier aggregation function, the antenna module is relatively large; and the communication link is relatively long, resulting in greater link loss.

[0034] This disclosure provides an antenna module and an electronic device. The antenna module is designed to utilize a double-pole double-throw switch and a single-pole multi-throw switch to achieve the transmission path of the antenna signal. While meeting carrier aggregation requirements, this reduces the number of components, thereby reducing the size of the antenna module and ultimately lowering its cost.

[0035] Based on the above concept, this disclosure provides an antenna module, including: multiple antennas and a switching unit; the switching unit is composed of a double-pole double-throw switch and a single-pole multi-throw switch, and the switching unit is used to provide a transmission path for aggregated antenna signals.

[0036] See one example. Figure 1 The antenna module includes a first duplex filter 12 and a first antenna ANT1. In this scenario, the switch unit 11, the first antenna ANT1, and the first duplex filter 12 form a first receiving path for receiving antenna signals in a first frequency band. The first frequency band can be the B7 band of an FDD-LTE network, with an uplink frequency range of 2500-2570MHz and a downlink frequency range of 2620-2690MHz. That is, the frequency range of the antenna signals received by the first receiving path is 2620-2690MHz.

[0037] See one example. Figure 2 The switch switching unit includes a first single-pole multi-throw switch 111, a second single-pole multi-throw switch 113, and a first double-pole double-throw switch 112;

[0038] The first terminal of the first single-pole multi-throw switch 111 is electrically connected to the first antenna ANT1, and the second terminal of the first single-pole multi-throw switch 111 is electrically connected to the first terminal of the first double-pole double-throw switch 112.

[0039] The second terminal of the first double-pole double-throw switch 112 is electrically connected to the first terminal of the first duplex filter 12; the second terminal of the first duplex filter 12 outputs the antenna signal of the first frequency band.

[0040] The path between the first antenna ANT1 and the second end of the first duplex filter 12 forms the first receiving path. That is, the antenna signal of the first frequency band is transmitted through the first receiving path, passing sequentially through the first antenna ANT1, the first single-pole multi-throw switch 111, the first double-pole double-throw switch 112, the second single-pole multi-throw switch 113 and the first duplex filter 12, and the antenna signal of the first frequency band is output by the first duplex filter 12 and demodulated by the radio frequency transceiver.

[0041] See one example. Figure 3 The antenna module may include a radio frequency amplifier (PA). This PA is electrically connected to the third terminal of the first duplex filter 12, meaning the third terminal of the first duplex filter 12 receives antenna signals in a first frequency band, the frequency range of which is 2500-2570MHz. In this scenario, the path between the third terminal of the first duplex filter 12 and the first antenna ANT1 constitutes a first transmission path. That is, the antenna signal in the first frequency band is transmitted through the first transmission path, sequentially passing through the third terminal of the first duplex filter 12, the second single-pole multi-throw switch 113, the first double-pole double-throw switch 112, the first single-pole multi-throw switch 111, and the first antenna ANT1.

[0042] See one example. Figure 4 The antenna module also includes a second duplex filter 13; the switch unit 11, the first antenna ANT1, and the second duplex filter 13 are used to form a second receiving path for transmitting antenna signals in the second frequency band. The second frequency band can be the B3 band of the FDD-LTE network, with an uplink frequency range of 1710-1785MHz and a downlink frequency range of 2620-2690MHz. That is, the frequency range of the antenna signals received by the first receiving path is 1805-1880MHz.

[0043] See one example. Figure 5 The switching unit also includes a second double-pole double-throw switch 114; the first end of the second double-pole double-throw switch 114 is electrically connected to the third end of the first single-pole multi-throw switch 111, and the second end of the second double-pole double-throw switch 114 is electrically connected to the third end of the first double-pole double-throw switch 112; the first end of the first single-pole multi-throw switch 111 is electrically connected to the first antenna ANT1; the first end of the second duplex filter 13 is electrically connected to the fourth end of the first double-pole double-throw switch 112, the second end of the second duplex filter 13 is used to output the antenna signal of the second frequency band, and the third end of the second duplex filter 13 is used to receive the antenna signal of the second frequency band.

[0044] In this case, the second end of the second duplex filter 13 and the first antenna ANT1 form a second receiving path, that is, the antenna signal of the second frequency band is transmitted through the second receiving path, passing through the first antenna ANT1, the first single-pole multi-throw switch 111, the second double-pole double-throw switch 114, the first double-pole double-throw switch 112 and the second duplex filter 13 in sequence, and the antenna signal of the second frequency band is output through the second end of the second duplex filter 13, which is then demodulated by the radio frequency transceiver.

[0045] In one example, the third terminal of the second duplex filter 13 is electrically connected to the radio frequency amplifier PA. In this case, a second transmission path is formed between the third terminal of the second duplex filter 13 and the first antenna ANT1. This second transmission path can transmit antenna signals in the second frequency band, with a frequency range of 1710-1785MHz. The signals pass sequentially through the radio frequency amplifier PA, the third terminal of the second duplex filter 13, the first double-pole double-throw switch 112, the second double-pole double-throw switch 114, the first single-pole multi-throw switch 111, and the first antenna ANT1.

[0046] See one example. Figure 6 The antenna module also includes a third duplex filter 14 and a second antenna ANT2. The switch unit 11, the third duplex filter 14, and the second antenna ANT2 are used to form a third receiving path for transmitting antenna signals in the third frequency band. The third frequency band can be the B1 band of the FDD-LTE network, with an uplink frequency range of 1920-1980MHz and a downlink frequency range of 2110-2170MHz. That is, the frequency range of the antenna signals received by the third receiving path is 2110-2170MHz.

[0047] See one example. Figure 7 The third terminal of the second double-pole double-throw switch 114 in the switch switching unit 11 is electrically connected to the second antenna ANT2, and the fourth terminal of the second double-pole double-throw switch 114 is electrically connected to the first terminal of the third duplex filter 14; the second terminal of the third duplex filter 14 is used to output the antenna signal of the third frequency band, and the third terminal of the third duplex filter is used to receive the antenna signal of the third frequency band.

[0048] In this case, the third receiving path can transmit the antenna signal of the third frequency band, which passes through the second antenna ANT2, the second double-pole double-throw switch 114 and the third duplex filter 14 in sequence, and the antenna signal of the third frequency band is output from the second end of the third duplex filter 14, and is demodulated by the radio frequency transceiver.

[0049] In one example, the third terminal of the third duplex filter is electrically connected to the RF amplifier PA, and the third terminal of the third duplex filter 14 forms a third transmission path with the second antenna ANT2. This third transmission path can transmit antenna signals in a third frequency band, with a frequency range of 1920-1980MHz, passing sequentially through the RF amplifier PA, the third terminal of the third duplex filter 14, the third duplex filter 14, the second double-pole double-throw switch 114, and the second antenna ANT2.

[0050] See one example. Figure 8 The second antenna ANT2 includes the main antenna Main-ANT and the diversity antenna DRX-ANT; the switch switching unit 11 also includes a third double-pole double-throw switch 115;

[0051] The first terminal of the third double-pole double-throw switch 115 is electrically connected to the main antenna Main-ANT, the second terminal of the third double-pole double-throw switch 115 is electrically connected to the third terminal of the second double-pole double-throw switch 114, the third terminal of the third double-pole double-throw switch 115 is electrically connected to the diversity antenna DRX-ANT, and the fourth terminal of the third double-pole double-throw switch 115 is used to receive the diversity antenna signal DRX.

[0052] See one example. Figure 9 The antenna module also includes a coupler 15. Coupler 15 is connected in series between the second terminal of the third double-pole double-throw switch 115 and the third terminal of the second double-pole double-throw switch 114, and is used to detect the real-time power of the antenna signal in the third transmission path, serving as a reference value for adjusting the transmission power of the antenna module. When this real-time power is lower than the expected transmission power, the RF amplifier PA increases the transmission power of the third transmission path to make the reference value and the expected value more consistent, i.e., the difference between the reference value and the expected value is less than or equal to a preset difference threshold.

[0053] In one example, based on Figure 9 The antenna module is described, along with its carrier aggregation scheme.

[0054] Taking intermediate frequency (IF) to high frequency (HF) carrier aggregation as an example, the antenna module can provide pathways such as CA_1A (PCC primary carrier) - 7A (SCC secondary carrier), including:

[0055] (1) Third receiving path: The antenna signal of the B1 band (i.e. the B1-RX signal) passes through the main antenna Main-ANT, the third double-pole double-throw switch 115, the coupler 15, the second double-pole double-throw switch 114, and the third duplex filter 14 in sequence, and finally reaches the radio frequency transceiver.

[0056] (2) Third transmission path: The antenna signal of the third frequency band (i.e. B1-TX signal) passes through the radio frequency amplifier PA, the third duplex filter 14, the second double-pole double-throw switch 114, the coupler 15, the third double-pole double-throw switch 115 and the main antenna Main-ANT in sequence.

[0057] (3) First receiving path: The antenna signal of the first frequency band (i.e. B1-RX signal) passes sequentially through the first antenna ANT1, the first single-pole multi-throw switch 111, the first double-pole double-throw switch 112, the second single-pole multi-throw switch 113, the first duplex filter 12 and the radio frequency transceiver.

[0058] In this embodiment, a scheme for intermediate frequency-high frequency carrier aggregation under multiple switch combination states can be realized by using a double-pole double-throw switch and a single-pole multi-throw switch.

[0059] Taking intermediate frequency (IF)-IF carrier aggregation as an example, the antenna module can provide pathways such as CA_1A (PCC primary carrier)-3A (SCC secondary carrier), including:

[0060] (1) Third receiving path: The antenna signal of the B1 band (i.e. the B1-RX signal) passes through the main antenna Main-ANT, the third double-pole double-throw switch 115, the coupler 15, the second double-pole double-throw switch 114, and the third duplex filter 14 in sequence, and finally reaches the radio frequency transceiver.

[0061] (2) Third transmission path: The antenna signal of the B1 band (i.e. the B1-TX signal) passes through the radio frequency amplifier PA, the third duplex filter 14, the second double-pole double-throw switch 114, the coupler 15, the third double-pole double-throw switch 115 and the main antenna Main-ANT in sequence.

[0062] (4) Second receiving path: The antenna signal of the second frequency band (i.e. B3-RX signal) passes sequentially through the first antenna ANT1, the first single-pole multi-throw switch 111, the second double-pole double-throw switch 114, the first double-pole double-throw switch 112, the second single-pole multi-throw switch 113, the second duplex filter 13 and the radio frequency transceiver.

[0063] In this embodiment, a scheme for intermediate frequency-intermediate frequency carrier aggregation under multiple switch combination states can be realized by using a double-pole double-throw switch and a single-pole multi-throw switch.

[0064] Based on the above example, it can be seen that the number of components in the antenna module can be reduced, thereby reducing the cost of the antenna module; furthermore, reducing the number of components involved in antenna signal transmission can reduce link loss and improve the transmission and reception performance of the antenna module; in addition, it can facilitate the adjustment of component positions during the design phase, thereby improving design efficiency.

[0065] Based on the aforementioned antenna module, this disclosure also provides an electronic device, which includes, as follows: Figures 1-9 The example antenna module is shown. It should be noted that the aforementioned electronic device can be a smartphone, computer, digital broadcasting terminal, tablet device, medical device, fitness equipment, personal digital assistant, etc.

[0066] When the electronic device has the aforementioned antenna module, refer to Figure 10 The electronic device 1000 may include one or more of the following components: processing component 1002, memory 1004, power supply component 1006, multimedia component 1008, audio component 1010, input / output (I / O) interface 1012, sensor component 1014, communication component 1016, and image acquisition component 1018.

[0067] Processing component 1002 typically controls the overall operation of electronic device 1000, such as operations associated with display, telephone calls, data communication, camera operation, and recording operations. Processing component 1002 may include one or more processors 1020 to execute computer programs. Furthermore, processing component 1002 may include one or more modules to facilitate interaction between processing component 1002 and other components. For example, processing component 1002 may include a multimedia module to facilitate interaction between multimedia component 1008 and processing component 1002.

[0068] Memory 1004 is configured to store various types of data to support the operation of electronic device 1000. Examples of such data include computer programs for any application or method operating on electronic device 1000, contact data, phone book data, messages, pictures, videos, etc. Memory 1004 can be implemented by any type of volatile or non-volatile storage device or a combination thereof, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic storage, flash memory, magnetic disk, or optical disk.

[0069] Power supply component 1006 provides power to various components of electronic device 1000. Power supply component 1006 may include a power management system, one or more power supplies, and other components associated with generating, managing, and distributing power to electronic device 1000.

[0070] Multimedia component 1008 includes a screen that provides an output interface between electronic device 1000 and target object. In some embodiments, the screen may include a liquid crystal display (LCD) and a touch panel (TP). If the screen includes a touch panel, the screen can be implemented as a touchscreen to receive input information from the target object. The touch panel includes one or more touch sensors to sense touches, swipes, and gestures on the touch panel. The touch sensors can sense not only the boundaries of touch or swipe actions but also the duration and pressure associated with the touch or swipe operation.

[0071] Audio component 1010 is configured to output and / or input audio file information. For example, audio component 1010 includes a microphone (MIC) configured to receive external audio file information when electronic device 1000 is in an operating mode, such as call mode, recording mode, and voice recognition mode. The received audio file information may be further stored in memory 1004 or transmitted via communication component 1016.

[0072] I / O interface 1012 provides an interface between processing component 1002 and peripheral interface modules, such as keyboards, click wheels, buttons, etc.

[0073] Sensor assembly 1014 includes one or more sensors for providing status assessments of various aspects of electronic device 1000. For example, sensor assembly 1014 can detect the on / off state of electronic device 1000, the relative positioning of components such as the display screen and keypad of electronic device 1000, changes in the position of electronic device 1000 or a component, the presence or absence of a target object in contact with electronic device 1000, the orientation or acceleration / deceleration of electronic device 1000, and temperature changes of electronic device 1000.

[0074] Communication component 1016 is configured to facilitate wired or wireless communication between electronic device 1000 and other devices. Electronic device 1000 can access wireless networks based on communication standards, such as WiFi, 2G, 3G, 4G, 5G, or combinations thereof. In one exemplary embodiment, communication component 1016 receives broadcast information or broadcast-related information from an external broadcast management system via a broadcast channel. In one exemplary embodiment, communication component 1016 also includes a near-field communication (NFC) module to facilitate short-range communication. For example, the NFC module may be implemented based on radio frequency identification (RFID) technology, Infrared Data Association (IrDA) technology, ultra-wideband (UWB) technology, Bluetooth (BT) technology, and other technologies. In one example, communication component 1016 includes the aforementioned antenna module.

[0075] In an exemplary embodiment, the electronic device 1000 may be implemented by one or more application-specific integrated circuits (ASICs), digital information processors (DSPs), digital information processing devices (DSPDs), programmable logic devices (PLDs), field-programmable gate arrays (FPGAs), controllers, microcontrollers, microprocessors, or other electronic components.

[0076] Other embodiments of this disclosure will readily occur to those skilled in the art upon consideration of the specification and practice of this disclosure. This disclosure is intended to cover any variations, uses, or adaptations that follow the general principles of this disclosure and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of this disclosure are indicated by the following claims.

[0077] It should be understood that this disclosure is not limited to the precise structures described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this disclosure is limited only by the appended claims.

Claims

1. An antenna module, characterized in that, include: Multiple antennas and a switch switching unit; the switch switching unit consists of a double-pole double-throw switch and a single-pole multi-throw switch; The switching unit is used to provide a transmission path for the aggregated antenna signal.

2. The antenna module according to claim 1, characterized in that, The antenna module further includes a first duplex filter and a first antenna; the switch switching unit, the first antenna, and the first duplex filter are used to form a first receiving path for receiving antenna signals of the first frequency band.

3. The antenna module according to claim 2, characterized in that, The switch switching unit includes a first single-pole multi-throw switch, a second single-pole multi-throw switch, and a first double-pole double-throw switch; The first terminal of the first single-pole multi-throw switch is electrically connected to the first antenna, and the second terminal of the first single-pole multi-throw switch is electrically connected to the first terminal of the first double-pole double-throw switch. The second terminal of the first double-pole double-throw switch is electrically connected to the first terminal of the first duplex filter; the second terminal of the first duplex filter outputs an antenna signal of the first frequency band. The path between the first antenna and the second end of the first duplex filter constitutes the first receiving path.

4. The antenna module according to claim 3, characterized in that, The third terminal of the first duplex filter receives the antenna signal of the first frequency band, and the path between the third terminal of the first duplex filter and the first antenna serves as the first transmission path.

5. The antenna module according to any one of claims 1 to 4, characterized in that, The antenna module further includes a second duplex filter; the switch unit, the first antenna, and the second duplex filter are used to form a second receiving path for transmitting antenna signals of the second frequency band and a second transmitting path for transmitting antenna signals of the second frequency band.

6. The antenna module according to claim 5, characterized in that, The switch switching unit also includes a second double-pole double-throw switch; The first terminal of the second double-pole double-throw switch is electrically connected to the third terminal of the first single-pole multi-throw switch, and the second terminal of the second double-pole double-throw switch is electrically connected to the third terminal of the first double-pole double-throw switch; the first terminal of the first single-pole multi-throw switch is electrically connected to the first antenna. The first end of the second duplex filter is electrically connected to the fourth end of the first double-pole double-throw switch, the second end of the second duplex filter is used to output the antenna signal of the second frequency band, and the third end of the second duplex filter is used to receive the antenna signal of the second frequency band. The second end of the second duplex filter forms the second receiving path with the first antenna, and the third end of the second duplex filter forms the second transmitting path with the first antenna.

7. The antenna module according to claim 1, characterized in that, The antenna module further includes a third duplex filter and a second antenna; the switch switching unit, the third duplex filter and the second antenna are used to form a third receiving path for transmitting antenna signals of the third frequency band and a third transmitting path for transmitting antenna signals of the third frequency band.

8. The antenna module according to claim 7, characterized in that, The third terminal of the second double-pole double-throw switch in the switching unit is electrically connected to the second antenna, and the fourth terminal of the second double-pole double-throw switch is electrically connected to the first terminal of the third duplex filter. The second end of the third duplex filter is used to output the antenna signal of the third frequency band, and the third end of the third duplex filter is used to receive the antenna signal of the third frequency band. The third receiving path is formed between the second end of the third duplex filter and the second antenna, and the third transmitting path is formed between the third end of the third duplex filter and the second antenna.

9. The antenna module according to claim 8, characterized in that, The second antenna includes a main antenna and a diversity antenna; the switch unit further includes a third double-pole double-throw switch; The first terminal of the third double-pole double-throw switch is electrically connected to the main antenna, the second terminal of the third double-pole double-throw switch is electrically connected to the third terminal of the second double-pole double-throw switch, the third terminal of the third double-pole double-throw switch is electrically connected to the diversity antenna, and the fourth terminal of the third double-pole double-throw switch is used to receive the diversity antenna signal.

10. The antenna module according to claim 9, characterized in that, The antenna module also includes a coupler; the coupler is connected in series between the second terminal of the third double-pole double-throw switch and the third terminal of the second double-pole double-throw switch, and is used to detect the real-time power of the antenna signal of the third transmission path, the real-time power being used as a reference value for correcting the transmission power of the antenna module.

11. An electronic device, characterized in that, include: The antenna module as described in any one of claims 1 to 10.

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