CN115694522B - Radio frequency module and electronic equipment - Google Patents

Radio frequency module and electronic equipment Download PDF

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Publication number
CN115694522B
CN115694522B CN202310001181.9A CN202310001181A CN115694522B CN 115694522 B CN115694522 B CN 115694522B CN 202310001181 A CN202310001181 A CN 202310001181A CN 115694522 B CN115694522 B CN 115694522B
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terminal
module
unit
sub
amplifier
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CN115694522A (en
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孙江涛
柴固恒
李政
黄清华
张新丽
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Honor Device Co Ltd
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Honor Device Co Ltd
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Abstract

The application discloses a radio frequency module and electronic equipment relates to the technical field of radio frequency. The radio frequency module comprises a first sub-module, a second sub-module and a third sub-module. The first sub-group includes a transmitting unit and a first switching unit. The second sub-group includes a first receiving unit, a second receiving unit, and a second switching unit. The third sub-group includes a third receiving unit, a fourth receiving unit, and a third switching unit. The second sub-module and the third sub-module have the same structure. The radio frequency module can meet four antenna SRS antenna selection requirements and downlink four-way requirements. Meanwhile, as the first receiving unit and the second receiving unit are positioned in the second sub-module, the third receiving unit and the fourth receiving unit are positioned in the third sub-module, and the structures of the second sub-module and the third sub-module are completely identical, the power consumption of the downlink circuits in different sub-modules is identical, and therefore the stability of the electronic equipment for receiving wireless signals can be improved.

Description

Radio frequency module and electronic equipment
Technical Field
The present disclosure relates to the field of radio frequency technologies, and in particular, to a radio frequency module and an electronic device.
Background
The electronic equipment comprises a mobile phone, a tablet personal computer, a notebook computer and the like. Electronic devices suitable for the fifth generation mobile communication technology (5th generation mobile communication technology,5G) need to meet four antenna sounding reference signal (sounding reference signal, SRS) day-to-day and downlink four-way requirements.
In the related art, a radio frequency module in an electronic device generally includes a first sub-module and a second sub-module. The first sub-module includes a transmitting unit, a first receiving unit, a second receiving unit, and a first switching unit. The transmitting unit, the first receiving unit and the second receiving unit can be connected with any one of the first antenna and the second antenna through the first switch unit. The second sub-group includes a third receiving unit, a fourth receiving unit, and a second switching unit. The third receiving unit and the fourth receiving unit can be connected with any one of the third antenna and the fourth antenna through the second switch unit. The first switch unit is also connected with the second switch unit, so that the transmitting unit can be connected with any one of the third antenna and the fourth antenna through the first switch unit and the second switch unit, and therefore four-antenna SRS antenna selection requirements and downlink four-channel requirements are met.
However, the first sub-module and the second sub-module in the related art can meet the two downlink requirements, but because the structures of the first sub-module and the second sub-module are different, the power consumption of the downlink circuit in the first sub-module is different from the power consumption of the downlink circuit in the second sub-module, which can affect the stability of the electronic device receiving the wireless signal.
Disclosure of Invention
The application provides a radio frequency module and electronic equipment, this radio frequency module is when satisfying four antenna SRS day and select the appeal and downgoing four way appeal, and the consumption of downgoing circuit is the same in the different submodules to can promote electronic equipment and receive wireless signal's stability. The technical scheme is as follows:
in a first aspect, a radio frequency module is provided. The radio frequency module is applied to the electronic equipment. The radio frequency module comprises a first sub-module, a second sub-module and a third sub-module. Wherein the first sub-group comprises a transmitting unit and a first switching unit. The second sub-group includes a first receiving unit, a second receiving unit, and a second switching unit. The third sub-group includes a third receiving unit, a fourth receiving unit, and a third switching unit. In this embodiment of the present application, the structures of the second sub-module and the third sub-module are identical.
The output end of the transmitting unit is connected with the first end of the first switch unit. The second end of the first switch unit is connected with the first end of the second switch unit, the second end of the second switch unit is connected with the first antenna and the input end of the first receiving unit, and the third end of the second switch unit is connected with the second antenna and the input end of the second receiving unit. That is, the output terminal of the transmitting unit can be connected to any one of the first antenna and the second antenna through the first switching unit and the second switching unit. Meanwhile, the input end of the first receiving unit is connected with the first antenna, and the input end of the second receiving unit is connected with the second antenna.
The third end of the first switch unit is connected with the first end of the third switch unit, the second end of the third switch unit is connected with the third antenna and the input end of the third receiving unit, and the third end of the third switch unit is connected with the fourth antenna and the input end of the fourth receiving unit. That is, the output terminal of the transmitting unit can be connected to any one of the third antenna and the fourth antenna through the first switching unit and the third switching unit. Meanwhile, the input end of the third receiving unit is connected with the third antenna, and the input end of the fourth receiving unit is connected with the fourth antenna.
When the radio frequency module works, if the transmitting unit inputs a transmitting signal, the transmitting unit: in the first case, the first and second terminals of the first switching unit are turned on, and the first and second terminals of the second switching unit are turned on. At this time, the output end of the transmitting unit is connected with the first antenna, and the transmitting signal can be sequentially output to the first antenna through the transmitting unit, the first switch unit and the second switch unit, so that the first path of transmitting of the transmitting signal is realized. In the second case, the first terminal and the second terminal of the first switching unit are turned on, and the first terminal and the third terminal of the second switching unit are turned on. At this time, the output end of the transmitting unit is connected with the second antenna, and the transmitting signal can be sequentially output to the second antenna through the transmitting unit, the first switch unit and the second switch unit, so that the second path of transmitting of the transmitting signal is realized. In the third case, the first terminal and the third terminal of the first switching unit are turned on, and the first terminal and the second terminal of the third switching unit are turned on. At this time, the output end of the transmitting unit is connected with the third antenna, and the transmitting signal can be sequentially output to the third antenna through the transmitting unit, the first switch unit and the third switch unit, so that the third transmission of the transmitting signal is realized. In the fourth case, the first terminal and the third terminal of the first switching unit are turned on, and the first terminal and the third terminal of the third switching unit are turned on. At this time, the output end of the transmitting unit is connected with the fourth antenna, and the transmitting signal can be sequentially output to the fourth antenna through the transmitting unit, the first switch unit and the third switch unit, so that the fourth path of transmitting of the transmitting signal is realized. Therefore, the radio frequency module can meet the four-antenna SRS antenna selection requirement.
If the first antenna is used for receiving the first receiving signal, the first receiving signal may be output after passing through the first receiving unit. If the second antenna is used for receiving the second receiving signal, the second receiving signal may be output after passing through the second receiving unit. If the third antenna is used for receiving the third received signal, the third received signal may be output after passing through the third receiving unit. If the fourth antenna is used for receiving the fourth received signal, the fourth received signal may be output through the fourth receiving unit. Therefore, the radio frequency module can meet the four downlink requirements. In addition, as the first receiving unit and the second receiving unit are positioned in the second sub-module, the third receiving unit and the fourth receiving unit are positioned in the third sub-module, and the structures of the second sub-module and the third sub-module are completely identical, the power consumption of the downlink circuits in different sub-modules can be identical, and therefore the stability of the electronic equipment for receiving wireless signals can be improved. Meanwhile, in the application, as the structures of the second sub-module and the third sub-module are completely the same, the problems of the sub-module with the same function such as re-transmission development, repeated packaging, repeated testing and the like are not caused, and indexes such as gain, noise, power consumption and the like of each receiving unit in the second sub-module and the third sub-module can be kept consistent.
The radio frequency module provided in the present application is explained below from four possible implementations.
In a first possible implementation, the transmitting unit includes: a first amplifier and a first filter. The output end of the first amplifier is connected with the first end of the first filter, and the second end of the first filter is connected with the first end of the first switch unit.
The first receiving unit includes: a second filter, a first switching device and a second amplifier. The first end of the second filter is connected with the first antenna and the second end of the second switch unit, the second end of the second filter is connected with the first end of the first switch device, and the second end of the first switch device is connected with the input end of the second amplifier.
The second receiving unit includes: a third filter, a second switching device and a third amplifier. The first end of the third filter is connected with the second antenna and the third end of the second switch unit, the second end of the third filter is connected with the first end of the second switch device, and the second end of the second switch device is connected with the input end of the third amplifier.
In a second possible implementation, the transmitting unit includes: the first amplifier, the first filter, the fourth switching unit, the fourth amplifier, and the fourth filter. The output end of the first amplifier is connected with the first end of the first filter, and the second end of the first filter is connected with the first end of the fourth switch unit. The output end of the fourth amplifier is connected with the first end of the fourth filter, and the second end of the fourth filter is connected with the second end of the fourth switch unit. The third end of the fourth switch unit is connected with the first end of the first switch unit. In this embodiment, the transmitting unit includes a first amplifier and a fourth amplifier, where the first amplifier and the fourth amplifier may operate in different frequency bands, so that the frequency bandwidth of the transmitting signal when the radio frequency module meets the four-antenna SRS antenna selection requirement may be widened.
The first receiving unit includes: a second filter, a first switching device and a second amplifier. The first end of the second filter is connected with the first antenna and the second end of the second switch unit, the second end of the second filter is connected with the first end of the first switch device, and the second end of the first switch device is connected with the input end of the second amplifier.
The second receiving unit includes: a third filter, a second switching device and a third amplifier. The first end of the third filter is connected with the second antenna and the third end of the second switch unit, the second end of the third filter is connected with the first end of the second switch device, and the second end of the second switch device is connected with the input end of the third amplifier.
In a third possible implementation manner, the second sub-module further includes: a first filter and a second filter. The first end of the first filter is connected with the second end of the second switch unit and the input end of the first receiving unit, and the second end of the first filter is used for being connected with the first antenna. The first end of the second filter is connected with the third end of the second switch unit and the input end of the second receiving unit, and the second end of the second filter is used for being connected with the second antenna.
In this case, the transmitting unit includes: and the output end of the first amplifier is connected with the first end of the first switch unit.
The first receiving unit includes: a first switching device and a second amplifier. The first end of the first switching device is connected with the first end of the first filter, and the second end of the first switching device is connected with the input end of the second amplifier.
The second receiving unit includes: a second switching device and a third amplifier. The first end of the second switching device is connected with the first end of the second filter, and the second end of the second switching device is connected with the input end of the third amplifier. In this embodiment, a filter may be saved compared to the first possible implementation, thereby saving cost and reducing layout area of the rf module.
In a fourth possible implementation manner, the second sub-module further includes: a first filter and a second filter. The first end of the first filter is connected with the second end of the second switch unit and the input end of the first receiving unit, and the second end of the first filter is used for being connected with the first antenna. The first end of the second filter is connected with the third end of the second switch unit and the input end of the second receiving unit, and the second end of the second filter is used for being connected with the second antenna.
In this case, the transmitting unit includes: a first amplifier, a fourth switching unit and a fourth amplifier. The output end of the first amplifier is connected with the first end of the fourth switching unit, the output end of the fourth amplifier is connected with the second end of the fourth switching unit, and the third end of the fourth switching unit is connected with the first end of the first switching unit. In this embodiment, the transmitting unit includes a first amplifier and a fourth amplifier, where the first amplifier and the fourth amplifier may operate in different frequency bands, so that the frequency bandwidth of the transmitting signal when the radio frequency module meets the four-antenna SRS antenna selection requirement may be widened.
The first receiving unit includes: a first switching device and a second amplifier. The first end of the first switching device is connected with the first end of the first filter, and the second end of the first switching device is connected with the input end of the second amplifier.
The second receiving unit includes: a second switching device and a third amplifier. The first end of the second switching device is connected with the first end of the second filter, and the second end of the second switching device is connected with the input end of the third amplifier.
In some embodiments, the first switching unit includes: a fifth switching device and a sixth switching device. The first end of the fifth switching device and the first end of the sixth switching device are both connected with the output end of the transmitting unit, the second end of the fifth switching device is connected with the first end of the second switching unit, and the second end of the sixth switching device is connected with the first end of the third switching unit.
In some embodiments, the second switching unit includes: a seventh switching device and an eighth switching device. The first end of the seventh switching device and the first end of the eighth switching device are both connected with the second end of the first switching unit, the second end of the seventh switching device is connected with the first antenna and the input end of the first receiving unit, and the second end of the eighth switching device is connected with the second antenna and the input end of the second receiving unit.
In some embodiments, the fourth switching unit includes: a third switching device and a fourth switching device. The first end of the third switching device is connected with the output end of the first amplifier, the first end of the fourth switching device is connected with the output end of the fourth amplifier, and the second end of the third switching device and the second end of the fourth switching device are both connected with the first end of the first switching unit.
In a second aspect, an electronic device is provided, including a first antenna, a second antenna, a third antenna, a fourth antenna, and a radio frequency module according to any one of the first aspects.
The technical effects obtained by the second aspect are similar to the technical effects obtained by the corresponding technical means in the first aspect, and are not described in detail herein.
Drawings
Fig. 1 is a schematic architecture diagram of an electronic device according to an embodiment of the present application;
fig. 2 is a schematic structural diagram of an electronic device according to an embodiment of the present application;
FIG. 3 is a radio frequency block diagram of an electronic device in the related art;
FIG. 4 is a radio frequency circuit diagram of an electronic device in the related art;
FIG. 5 is a layout of a first sub-module of the related art;
FIG. 6 is a layout of a second sub-module of the related art;
fig. 7 is a radio frequency structure diagram of a first electronic device according to an embodiment of the present application;
fig. 8 is a radio frequency circuit diagram of a first electronic device according to an embodiment of the present application;
fig. 9 is a radio frequency circuit diagram of a second electronic device according to an embodiment of the present application;
FIG. 10 is a layout diagram of a second sub-module according to an embodiment of the present disclosure;
fig. 11 is a radio frequency circuit diagram of a third electronic device according to an embodiment of the present application;
fig. 12 is a radio frequency circuit diagram of a fourth electronic device according to an embodiment of the present disclosure;
fig. 13 is a radio frequency structure diagram of a second electronic device according to an embodiment of the present application;
fig. 14 is a radio frequency circuit diagram of a fifth electronic device according to an embodiment of the present application;
fig. 15 is a radio frequency circuit diagram of a sixth electronic device according to an embodiment of the present application;
Fig. 16 is a radio frequency circuit diagram of a seventh electronic device provided in an embodiment of the present application;
fig. 17 is a radio frequency circuit diagram of an eighth electronic device according to an embodiment of the present application.
Wherein, the meanings represented by the reference numerals are respectively as follows:
101. a screen and a cover plate;
102. a housing;
103. an internal structure;
104. a rear cover;
related technology:
10. an electronic device;
12. a radio frequency module;
1202. a substrate is routed;
1204. a bump;
122. a first sub-module;
1222. a transmitting unit;
1224. a first receiving unit;
1226. a second receiving unit;
1228. a first switching unit;
124. a second sub-module;
1242. a third receiving unit;
1244. a fourth receiving unit;
1246. a second switching unit;
the application comprises the following steps:
20. an electronic device;
210. a radio frequency module;
2102. a substrate is routed;
2104. a bump;
212. a first sub-module;
2122. a transmitting unit;
214. a second sub-module;
2142. a first receiving unit;
2144. a second receiving unit;
216. a third sub-module;
2162. a third receiving unit;
2164. and a fourth receiving unit.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the present application more apparent, embodiments of the present application will be described in further detail below with reference to the accompanying drawings.
It should be understood that reference herein to "a plurality" means two or more. In the description of the present application, "/" means or, unless otherwise indicated, for example, a/B may represent a or B; "and/or" herein is merely an association relationship describing an association object, and means that three relationships may exist, for example, a and/or B may mean: a exists alone, A and B exist together, and B exists alone. In addition, for the purpose of facilitating the clear description of the technical solutions of the present application, the words "first", "second", etc. are used to distinguish between the same item or similar items having substantially the same function and effect. It will be appreciated by those of skill in the art that the words "first," "second," and the like do not limit the amount and order of execution, and that the words "first," "second," and the like do not necessarily differ.
Before explaining the rf module provided in the embodiments of the present application in detail, an application scenario of the rf module is described.
Exemplary, fig. 1 is a schematic architecture diagram of an electronic device according to an embodiment of the present application. As shown in fig. 1, the electronic device includes an application subsystem, a memory (memory), a mass storage (mass storage), a baseband subsystem, a radio frequency module, a radio frequency integrated circuit (radio frequency intergreted circuit, RFIC), and an Antenna (ANT), which may be coupled by various interconnection buses or other electrical connection means. Where TX represents the transmit path, RX represents the receive path, and different numbers represent different paths. FBRX denotes a feedback reception path, PRX denotes a primary set reception path, and DRX denotes a diversity reception path. HB represents high frequency, LB represents low frequency, both refer to the relative high and low frequencies. BB represents the baseband. It should be understood that the reference numerals and components in fig. 1 are for illustrative purposes only and are merely one possible implementation, and that other implementations are included in embodiments of the present application.
The rf module may include switches, antenna tuners, amplifiers, mixers (mixers), local Oscillators (LOs), filters, etc. The amplifiers include a Power Amplifier (PA), a low noise amplifier (low noise amplifier, LNA), and the like. The antenna may also be considered part of the radio frequency module at times. For convenience of description, in the embodiment of the present application, the rf module does not include an antenna. The RF module may be further divided into an RF receive path (RF receive path) and an RF transmit path (RF transmit path). The rf receiving channel operates in a downlink mode for receiving rf signals via the antenna, processing (e.g., amplifying, filtering) the rf signals to obtain baseband signals, and transmitting the baseband signals to the baseband subsystem. The rf transmit channels operate in an uplink mode for receiving baseband signals from the baseband subsystem, processing (e.g., amplifying and filtering) the baseband signals to obtain rf signals, and finally radiating the rf signals into space through the antenna.
The baseband subsystem may extract useful information or data bits from the baseband signal or convert the information or data bits to a baseband signal to be transmitted. The information or data bits may be data representing user data or control information such as voice, text, video, etc. For example, the baseband subsystem may implement signal processing operations such as modulation and demodulation, encoding and decoding, and the like. For different radio access technologies, e.g. 5G NR and 4G long term evolution technologies (long term evolution, LTE), there is often not exactly the same baseband signal processing operation. Thus, to support the convergence of multiple mobile communication modes, the baseband subsystem may include multiple processing cores at the same time, or multiple hardware accelerators (hardware accelerator, HACs). The baseband subsystem is typically integrated into one or more chips, the chips of the integrated baseband subsystem are typically referred to as baseband processor chips (baseband intergreted circuit, BBIC).
In embodiments of the present application, the baseband subsystem may be implemented as a stand-alone chip, which may be referred to as a modem (modem) chip. The hardware components of the baseband subsystem may be manufactured and sold in units of modem chips. modem chips are sometimes also referred to as baseband chips or baseband processors. In addition, the baseband subsystem may be further integrated in a System On Chip (SOC) unit for manufacturing and sale. The software components of the baseband subsystem may be built into the hardware components of the chip prior to shipment of the chip, may be imported from other nonvolatile memory into the hardware components of the chip after shipment of the chip, or may be downloaded and updated in an online manner via a network.
In addition, since the radio frequency signal is an analog signal, the signal processed by the baseband subsystem is mainly a digital signal, and an analog-to-digital conversion device is also required in the electronic device. The analog-to-digital conversion device includes an analog-to-digital converter (analog to digital converter, ADC) that converts the analog signal to a digital signal, and a digital-to-analog converter (digital to analog converter, DAC) that converts the digital signal to an analog signal. In the embodiment of the application, the analog-to-digital conversion device may be disposed in the baseband subsystem.
The application subsystem can be used as a main control system or a main computing system of the electronic equipment and is used for running a main operating system and an application program, managing software and hardware resources of the whole electronic equipment and providing a user operation interface for a user. The application subsystem may include one or more processing cores. In addition, driver software may be included in the application subsystem in relation to other subsystems (e.g., baseband subsystem). The baseband subsystem may also include one or more processing cores, as well as HACs and caches, etc.
Fig. 2 is a schematic structural diagram of an electronic device according to an embodiment of the present application. The electronic device may be a cell phone, tablet or personal computer (personal computer, PC) or the like. As shown in fig. 2, the electronic device provided in the embodiment of the present application may sequentially include a screen and a cover plate 101, a housing 102, an internal structure 103, and a rear cover 104 along a top-down direction of a paper surface.
The screen and cover 101 may be used to implement the display function of the electronic device. The housing 102 may serve as a main body frame of the electronic device, providing rigid support for the electronic device. The internal structure 103 may include a collection of electronic and mechanical components that perform the functions of the electronic device. For example, the internal structure 103 may include a shield, screws, ribs, etc. The rear cover 104 may be a back surface of the electronic device, and glass, ceramic, plastic, etc. may be used for the rear cover 104 in various implementations. The radio frequency module provided by the embodiment of the application can be applied to the electronic equipment shown in fig. 2 and is used for supporting the wireless communication function of the electronic equipment. In the embodiment of the application, the radio frequency module is used for realizing two-path transmission of uplink MIMO.
First, a radio frequency module in the related art will be described.
Fig. 3 is a radio frequency block diagram of an electronic device 10 in the related art. As shown in fig. 3, the electronic device 10 includes a radio frequency module 12 and an antenna. Because the electronic device 10 suitable for 5G needs to meet four antenna SRS antenna selection requirements and four downlink requirements, the rf module 12 includes a first sub-module 122 and a second sub-module 124. The antennas include a first antenna ANT1, a second antenna ANT2, a third antenna ANT3, and a fourth antenna ANT4.
The first sub-module 122 includes a transmitting unit 1222, a first receiving unit 1224, a second receiving unit 1226, and a first switching unit 1228. The transmitting unit 1222, the first receiving unit 1224, and the second receiving unit 1226 can each be connected to any one of the first antenna ANT1 and the second antenna ANT2 through the first switching unit 1228. The second sub-module 124 includes a third receiving unit 1242, a fourth receiving unit 1244, and a second switching unit 1246. The third receiving unit 1242 and the fourth receiving unit 1244 can be connected to any one of the third antenna ANT3 and the fourth antenna ANT4 through the second switching unit 1246. The first switching unit 1228 is further connected to the second switching unit 1246, so that the transmitting unit 1222 can be connected to any one of the third antenna ANT3 and the fourth antenna ANT4 through the first switching unit 1228 and the second switching unit 1246, thereby satisfying four-antenna SRS antenna selection requirements and downlink four-way requirements.
Specifically, fig. 4 is a radio frequency circuit diagram of an electronic device 10 in the related art. As shown in fig. 4, in the related art, in the first sub-module 122, the transmitting unit 1222 includes an amplifier PA1. The first receiving unit 1224 includes an amplifier LNA1. The second receiving unit 1226 includes a filter F2 and an amplifier LNA2. The first switching unit 1228 includes a switch SW3, a filter F1 and a switch SW1. The first sub-module 122 also has a port IN1, a port OUT2, a port A1, a port A2, and a port AUX1. The port A1 is used for being connected with the first antenna ANT1, and the port A2 is used for being connected with the second antenna ANT 2. The connection relationship between each device and each port in the first sub-module 122 may be shown in fig. 4, and will not be described again.
In the second sub-module 124, the third receiving unit 1242 includes a filter F3 and an amplifier LNA3. The fourth receiving unit 1244 includes a filter F4 and an amplifier LNA4. The second switching unit 1246 includes a switch SW2. The second sub-module 124 also has a port OUT3, a port OUT4, a port AUX2, a port A3, and a port A4. The port A3 is used for being connected to the third antenna ANT3, the port A4 is used for being connected to the fourth antenna ANT4, and the port AUX2 is used for being connected to the port AUX1 in the first sub-module 122. The connection relationship between each device and each port in the second sub-module 124 may be shown in fig. 4, and will not be described again.
The working process of the radio frequency module 12 meeting the four-antenna SRS antenna selection requirement is as follows: when the port IN1 inputs a transmit signal, then: in the first case, the first terminal a and the second terminal b of the switch SW3 are turned on, and the first terminal a and the second terminal b of the switch SW1 are turned on. At this time, the input terminal of the amplifier PA1 inputs the transmission signal through the port IN 1. The transmitting signal is sequentially output to the first antenna ANT1 through the port IN1, the amplifier PA1, the first end a and the second end b of the switch SW3, the filter F1, the first end a and the second end b of the switch SW1 and the port A1, so that the first path of transmitting of the transmitting signal is realized. In the second case, the first terminal a and the second terminal b of the switch SW3 are turned on, and the first terminal a and the third terminal c of the switch SW1 are turned on. At this time, the input terminal of the amplifier PA1 inputs the transmission signal through the port IN 1. The transmitting signal is sequentially output to the second antenna ANT2 through the port IN1, the amplifier PA1, the first end a and the second end b of the switch SW3, the filter F1, the first end a and the third end c of the switch SW1, and the port A2, thereby realizing the second path transmission of the transmitting signal. In the third case, the first terminal a and the second terminal b of the switch SW3 are turned on, the first terminal a and the fifth terminal e of the switch SW1 are turned on, and the fifth terminal e and the third terminal c of the switch SW2 are turned on. At this time, the input terminal of the amplifier PA1 inputs the transmission signal through the port IN 1. The transmitting signal is sequentially output to the third antenna ANT3 through the port IN1, the amplifier PA1, the first end a and the second end b of the switch SW3, the filter F1, the first end a and the fifth end e of the switch SW1, the port AUX2, the fifth end e and the third end c of the switch SW2, and the port A3, thereby realizing third transmission of the transmitting signal. In the fourth case, the first terminal a and the second terminal b of the switch SW3 are turned on, the first terminal a and the fifth terminal e of the switch SW1 are turned on, and the fifth terminal e and the fourth terminal d of the switch SW2 are turned on. At this time, the input terminal of the amplifier PA1 inputs the transmission signal through the port IN 1. The transmitting signal is sequentially output to the fourth antenna ANT4 through the port IN1, the amplifier PA1, the first end a and the second end b of the switch SW3, the filter F1, the first end a and the fifth end e of the switch SW1, the port AUX2, the fifth end e and the fourth end d of the switch SW2, and the port A4, thereby realizing fourth-path transmission of the transmitting signal.
The working process of the radio frequency module 12 meeting the downlink four-way requirement is as follows: if the first antenna ANT1 is configured to receive the first receiving signal, the second terminal b and the first terminal a of the switch SW1 are turned on, and the second terminal b and the third terminal c of the switch SW3 are turned on. At this time, the first received signal received by the first antenna ANT1 may be sequentially output from the first sub-module 122 via the port A1, the second terminal b and the first terminal a of the switch SW1, the filter F1, the second terminal b and the third terminal c of the switch SW3, and the amplifier LNA1, via the port OUT1, thereby realizing the first path of signal reception. If the second antenna ANT2 is used for receiving the second reception signal, the third terminal c and the fourth terminal d of the switch SW1 are turned on. At this time, the second received signal received by the second antenna ANT2 may be sequentially output from the first sub-module 122 through the port A2, the third terminal c and the fourth terminal d of the switch SW1, the filter F2, the amplifier LNA2, and the port OUT2, thereby realizing the second path of receiving of the signal. If the third antenna ANT3 is configured to receive the third reception signal, the third terminal c and the first terminal a of the switch SW2 are turned on. At this time, the third received signal received by the third antenna ANT3 may be sequentially output from the second sub-module 124 through the port A3, the third terminal c and the first terminal a of the switch SW2, the filter F3, the amplifier LNA3, and the port OUT3, thereby realizing the third receiving of the signal. If the fourth antenna ANT4 is configured to receive the fourth received signal, the fourth terminal d and the second terminal b of the switch SW2 are turned on. At this time, the fourth received signal received by the fourth antenna ANT4 may be sequentially output from the second sub-module 124 through the port A4, the fourth terminal d and the second terminal b of the switch SW2, the filter F4, the amplifier LNA4, and the port OUT4, thereby realizing fourth-path reception of the signal.
For ease of understanding, in the following description, a circuit between the outputs of one antenna (including the first antenna ANT1, the second antenna ANT2, the third antenna ANT3, and the fourth antenna ANT 4) to one receiving unit (including the first receiving unit 1224, the second receiving unit 1226, the third receiving unit 1242, and the fourth receiving unit 1244) is referred to as a downlink circuit (i.e., a radio frequency receiving channel). That is, the first sub-module 122 includes two downstream circuits, one of which is a circuit starting from the port A1 and going through the second terminal b and the first terminal a of the switch SW1, the filter F1, the second terminal b and the third terminal c of the switch SW3, and going between the output terminals of the amplifier LNA 1; the other downstream circuit is a circuit from the port A2, through the third and fourth terminals c and d of the switch SW1, the filter F2, and to the output of the amplifier LNA 2. The downlink circuit in the second sub-module 124 is not described herein.
However, as shown in fig. 3 and 4, in the related art, although the first sub-module 122 and the second sub-module 124 each include two receiving units to meet two downlink requirements, due to the different structures of the first sub-module 122 and the second sub-module 124, one downlink circuit in the first sub-module 122 needs to be additionally connected to the transmitting unit 1222 through the switch SW3, which makes the power consumption of the downlink circuit in the first sub-module 122 different from the power consumption of the downlink circuit in the second sub-module 124, thereby affecting the stability of the electronic device 10 for receiving the wireless signal. In addition, in the related art, the first sub-module 122 and the second sub-module 124 having the same downlink two-way function need to be repeatedly developed, repeatedly packaged, and repeatedly tested.
Fig. 5 is a layout diagram of the first sub-module 122 in the related art, in which the layout of the circuit structure between the switch SW1, the filter F2 and the amplifier LNA2 is shown. As shown in fig. 5, since the filter F2 cannot be formed on the same wafer as the amplifier LNA2 and the switch SW1, the connection between the filter F2 and the amplifier LNA2 and the connection between the filter F2 and the fourth terminal d of the switch SW1 need to be performed through the substrate trace 1202. Fig. 6 is a layout diagram of the second sub-module 124 in the related art, in which the layout of the circuit structures between the switch SW2, the filter F3 and the amplifier LNA3, and the layout of the circuit structures between the switch SW2, the filter F4 and the amplifier LNA4 are shown. As shown in fig. 6, the connection between the filter F3 and the amplifier LNA3, the connection between the filter F3 and the first terminal a of the switch SW2, the connection between the filter F4 and the amplifier LNA4, and the connection between the filter F4 and the second terminal b of the switch SW2 are all performed through the substrate wire 1202. However, such an arrangement (i.e., the filter is connected between the amplifier and the switch) as shown in fig. 5 and 6 results in a larger loss since each device is connected to the substrate trace 1202 with a bump 1204 having a larger loss.
Therefore, the embodiment of the application provides a radio frequency module and electronic equipment, and the radio frequency module meets four antenna SRS (sounding reference signal) daily selection requirements and downlink four-way requirements, and meanwhile power consumption of downlink circuits in different sub-modules is the same, so that the stability of the electronic equipment for receiving wireless signals can be improved.
The radio frequency module provided in the embodiment of the application is explained in detail below. In embodiments of the present application, the connection between two devices is referred to as an electrical connection. The electrical connection here means that two devices are connected by a wire to transmit an electrical signal.
Fig. 7 is a radio frequency structure diagram of an electronic device 20 according to an embodiment of the present application. As shown in fig. 7, the rf module 210 is applied to the electronic device 20. The electronic device 20 may be a mobile phone, a tablet computer, a notebook computer, or the like. The rf module 210 includes a first sub-module 212, a second sub-module 214, and a third sub-module 216. The first sub-module 212 includes a transmitting unit 2122 and a first switching unit SW1. The second sub-module 214 includes a first receiving unit 2142, a second receiving unit 2144, and a second switching unit SW2. The third sub-module 216 includes a third receiving unit 2162, a fourth receiving unit 2164, and a third switching unit SW3.
Specifically, the first switching unit SW1 has a first terminal a, a second terminal b and a third terminal c, and both the second terminal b and the third terminal c of the first switching unit SW1 can be turned on with the first terminal a. An input terminal of the transmitting unit 2122 is for inputting a transmission signal, and an output terminal of the transmitting unit 2122 is connected to the first terminal a of the first switching unit SW 1. The second switching unit SW2 has a first terminal a, a second terminal b and a third terminal c, and both the second terminal b and the third terminal c of the second switching unit SW2 can be turned on with the first terminal a. The first end a of the second switching unit SW2 is connected to the second end b of the first switching unit SW1, the second end b of the second switching unit SW2 is connected to the first antenna ANT1, and the third end c of the second switching unit SW2 is connected to the second antenna ANT 2. The third switching unit SW3 has a first terminal a, a second terminal b and a third terminal c, and both the second terminal b and the third terminal c of the third switching unit SW3 can be turned on with the first terminal a. The first end a of the third switching unit SW3 is connected to the third end c of the first switching unit SW1, the second end b of the third switching unit SW3 is connected to the third antenna ANT3, and the third end c of the third switching unit SW3 is connected to the fourth antenna ANT 4. In this way, the output terminal of the transmitting unit 2122 can be connected to any one of the first antenna ANT1 and the second antenna ANT2 through the first switching unit SW1 and the second switching unit SW2, and the output terminal of the transmitting unit 2122 can be connected to any one of the third antenna ANT3 and the fourth antenna ANT4 through the first switching unit SW1 and the third switching unit SW 3.
An input terminal of the first receiving unit 2142 is connected to the first antenna ANT1, an input terminal of the second receiving unit 2144 is connected to the second antenna ANT2, an input terminal of the third receiving unit 2162 is connected to the third antenna ANT3, and an input terminal of the fourth receiving unit 2164 is connected to the fourth antenna ANT 4. In the embodiment of the present application, the second sub-module 214 and the third sub-module 216 have identical structures. The term "structure" as used herein includes both circuit structures and mechanical structures. In other words, the structure of the first receiving unit 2142 is the same as that of the third receiving unit 2162, the structure of the second receiving unit 2144 is the same as that of the fourth receiving unit 2164, and the structure of the second switching unit SW2 and that of the third switching unit SW3 are the same. Meanwhile, the connection manner of the second switch unit SW2 and the first receiving unit 2142, the second receiving unit 2144, the first antenna ANT1, and the second antenna ANT2 in the first sub-module 212 is also the same as the connection manner of the third switch unit SW3 and the third receiving unit 2162, the fourth receiving unit 2164, the third antenna ANT3, and the fourth antenna ANT4 in the second sub-module 214. That is, the first sub-module 212 and the second sub-module 214 are the same sub-module. In some embodiments, each sub-module in the rf module 210 may be a chip that encapsulates a plurality of electronic devices together. In this case, the second sub-module 214 and the third sub-module 216 have the same function, and the pins are the same, and the package size is the same.
When the rf module 210 works, the working process of the rf module 210 meeting the four-antenna SRS antenna selection requirement is as follows: when a transmission signal is input to the input terminal of the transmission unit 2122, then: in the first case, the first terminal a and the second terminal b of the first switching unit SW1 are turned on, and the first terminal a and the second terminal b of the second switching unit SW2 are turned on. At this time, the output terminal of the transmitting unit 2122 is connected to the first antenna ANT1 through the first switching unit SW1 and the second switching unit SW 2. The transmission signal may be sequentially output to the first antenna ANT1 through the transmission unit 2122, the first and second ends a and b of the first switching unit SW1, and the first and second ends a and b of the second switching unit SW2, thereby realizing the first transmission of the transmission signal.
In the second case, the first terminal a and the second terminal b of the first switching unit SW1 are turned on, and the first terminal a and the third terminal c of the second switching unit SW2 are turned on. At this time, the output terminal of the transmitting unit 2122 is connected to the second antenna ANT2 through the first switching unit SW1 and the second switching unit SW 2. The transmission signal may be sequentially output to the second antenna ANT2 through the transmission unit 2122, the first and second terminals a and b of the first switching unit SW1, and the first and third terminals a and c of the second switching unit SW2, thereby realizing the second transmission of the transmission signal.
In the third case, the first terminal a and the third terminal c of the first switching unit SW1 are turned on, and the first terminal a and the second terminal b of the third switching unit SW3 are turned on. At this time, the output terminal of the transmitting unit 2122 is connected to the third antenna ANT3 through the first switching unit SW1 and the third switching unit SW 3. The transmission signal may be sequentially output to the third antenna ANT3 through the transmission unit 2122, the first and third terminals a and c of the first switching unit SW1, and the first and second terminals a and b of the third switching unit SW3, thereby realizing third-path transmission of the transmission signal.
In the fourth case, the first terminal a and the third terminal c of the first switching unit SW1 are turned on, and the first terminal a and the third terminal c of the third switching unit SW3 are turned on. At this time, the output terminal of the transmitting unit 2122 is connected to the fourth antenna ANT4 through the first switching unit SW1 and the third switching unit SW 3. The transmission signal may be sequentially output to the fourth antenna ANT4 through the transmission unit 2122, the first and third terminals a and c of the first switching unit SW1, and the first and third terminals a and c of the third switching unit SW3, thereby realizing fourth-path transmission of the transmission signal.
The working process of the rf module 210 meeting the downlink four-way requirement is as follows: in the first case, the first antenna ANT1 is for receiving a first reception signal. At this time, the first reception signal may be output through the first reception unit 2142 connected to the first antenna ANT 1. In the second case, the second antenna ANT2 is for receiving a second reception signal. At this time, the second reception signal may be output through the second reception unit 2144 connected to the second antenna ANT 2. In the third case, a third antenna ANT3 is used to receive a third received signal. At this time, the third reception signal may be output through the third receiving unit 2162 connected to the third antenna ANT 3. In the fourth case, the fourth antenna ANT4 is for receiving a fourth reception signal. At this time, the fourth reception signal may be output through the fourth reception unit 2164 connected to the fourth antenna ANT 4.
As can be seen from the above description, in the embodiment of the present application, the rf module 210 can meet the four antenna SRS antenna selection requirement and the downlink four-way requirement. In addition, since the transmitting unit 2122 is located in the first sub-module 212, the first receiving unit 2142 and the second receiving unit 2144 are located in the second sub-module 214, the third receiving unit 2162 and the fourth receiving unit 2164 are located in the third sub-module 216, and the structures of the second sub-module 214 and the third sub-module 216 are identical, the connection modes of any one downlink circuit and other devices are identical, so that the power consumption of the downlink circuits in different sub-modules is identical, and the stability of the electronic device 20 for receiving wireless signals can be improved. Meanwhile, in the present application, since the structures of the second sub-module 214 and the third sub-module 216 are identical, that is, the second sub-module 214 and the third sub-module 216 are identical sub-modules, the problems of sub-module retransmission development, repeated packaging, repeated testing and the like with the same functions are not caused, and the indexes of gain, noise, power consumption and the like of each receiving unit in the second sub-module 214 and the third sub-module 216 can be kept consistent.
It can be appreciated that in the above embodiment, the description of the radio frequency module 210 provided in this embodiment is introduced by the antennas (including the first antenna ANT1, the second antenna ANT2, the third antenna ANT3 and the fourth antenna ANT 4), so as to facilitate understanding of the connection manner and the working process of the radio frequency module 210. In fact, the rf module 210 does not include an antenna in the embodiment of the present application. That is, the antenna is present as an environmental element in the rf module 210 provided in the embodiment of the present application. Therefore, the antenna should not be construed as limiting the scope of protection of the rf module 210 provided in the embodiments of the present application.
The rf module 210 provided in the embodiments of the present application is explained in detail below from four different implementations with reference to the accompanying drawings.
1) Fig. 8 is a radio frequency circuit diagram of an electronic device 20 according to an embodiment of the present application. As shown in fig. 8, the transmitting unit 2122 includes a first amplifier PA1 and a first filter F1. The output terminal of the first amplifier PA1 is connected to the first terminal of the first filter F1, and the second terminal of the first filter F1 is connected to the first terminal a of the first switching unit SW 1. The first sub-module 212 also has a port IN1, a port AUX1, and a port AUX2. The port IN1 is connected to the input terminal of the first amplifier PA1, the port AUX1 is connected to the second terminal b of the first switching unit SW1, and the port AUX2 is connected to the third terminal c of the first switching unit SW 1.
In the second sub-module 214, the first receiving unit 2142 includes a second filter F2, a first switching device K1, and a second amplifier LNA1. The first end of the second filter F2 is connected to the first antenna ANT1 and the second end b of the second switching unit SW2, the second end of the second filter F2 is connected to the first end of the first switching device K1, and the second end of the first switching device K1 is connected to the input end of the second amplifier LNA1. The second receiving unit 2144 includes a third filter F3, a second switching device K2, and a third amplifier LNA2. The first end of the third filter F3 is connected to the second antenna ANT2 and the third end c of the second switching unit SW2, the second end of the third filter F3 is connected to the first end of the second switching device K2, and the second end of the second switching device K2 is connected to the input end of the third amplifier LNA2. The second sub-module 214 also has a port OUT1, a port OUT2, a port A1, a port A2, and a port AUX3. The port A1 is for connection with the first antenna ANT1, that is, the first end of the second filter F2 and the second end b of the second switching unit SW2 may be connected with the first antenna ANT1 through the port A1. The port A2 is for connection with the second antenna ANT2, that is, the first terminal of the third filter F3 and the third terminal c of the second switching unit SW2 may be connected with the second antenna ANT2 through the port A2. The first terminal a of the second switching unit SW2 is connected to the port AUX3. Port AUX3 is connected to port AUX 1. The output of the second amplifier LNA1 is connected to the port OUT 1. The output of the third amplifier LNA2 is connected to the port OUT 2. Wherein the first switching device K1 and the second switching device K2 may be integrated as the fifth switching unit SW5.
Correspondingly, in the third sub-module 216, the third receiving unit 2162 includes a fifth filter F5, a ninth switching device K9 and a fifth amplifier LNA3. The first end of the fifth filter F5 is connected to the third antenna ANT3 and the second end b of the third switching unit SW3, the second end of the fifth filter F5 is connected to the first end of the ninth switching device K9, and the second end of the ninth switching device K9 is connected to the input of the fifth amplifier LNA3. The second receiving unit 2144 includes a sixth filter F6, a tenth switching device K10, and a sixth amplifier LNA4. The first end of the sixth filter F6 is connected to the fourth antenna ANT4 and the third end c of the third switching unit SW3, the second end of the sixth filter F6 is connected to the first end of the tenth switching device K10, and the second end of the tenth switching device K10 is connected to the input end of the sixth amplifier LNA4. The second sub-module 214 also has a port OUT3, a port OUT4, a port A3, a port A4, and a port AUX4. The port A3 is for connection with the third antenna ANT3, that is, the first terminal of the fifth filter F5 and the second terminal b of the third switching unit SW3 may be connected with the third antenna ANT3 through the port A3. The port A4 is used to be connected to the fourth antenna ANT4, that is, the first terminal of the sixth filter F6 and the third terminal c of the third switching unit SW3 may be connected to the fourth antenna ANT4 through the port A4. The first terminal a of the third switching unit SW3 is connected to the port AUX4. Port AUX4 is connected to port AUX 2. The output of the fifth amplifier LNA3 is connected to the port OUT 3. The output of the sixth amplifier LNA4 is connected to the port OUT 4. Among them, the ninth switching device K9 and the tenth switching device K10 may be integrated as a sixth switching unit SW6.
When the rf module 210 works, the working process of the rf module 210 meeting the four-antenna SRS antenna selection requirement is as follows: when the port IN1 inputs a transmit signal, then: in the first case, the first terminal a and the second terminal b of the first switching unit SW1 are turned on, and the first terminal a and the second terminal b of the second switching unit SW2 are turned on. At this time, the input terminal of the first amplifier PA1 inputs a transmission signal through the port IN 1. The transmitting signal is sequentially output to the first antenna ANT1 through the first amplifier PA1, the first filter F1, the first end a and the second end b of the first switching unit SW1, the port AUX3, the first end a and the second end b of the second switching unit SW2, and the port A1, thereby realizing the first path of transmission of the transmitting signal.
In the second case, the first terminal a and the second terminal b of the first switching unit SW1 are turned on, and the first terminal a and the third terminal c of the second switching unit SW2 are turned on. At this time, the input terminal of the first amplifier PA1 inputs a transmission signal through the port IN 1. The transmitting signal is sequentially output to the second antenna ANT2 through the first amplifier PA1, the first filter F1, the first end a and the second end b of the first switching unit SW1, the port AUX3, the first end a and the third end c of the second switching unit SW2, and the port A2, thereby realizing the second path transmission of the transmitting signal.
In the third case, the first terminal a and the third terminal c of the first switching unit SW1 are turned on, and the first terminal a and the second terminal b of the third switching unit SW3 are turned on. At this time, the input terminal of the first amplifier PA1 inputs a transmission signal through the port IN 1. The transmitting signal is sequentially output to the third antenna ANT3 through the first amplifier PA1, the first filter F1, the first end a and the third end c of the first switching unit SW1, the port AUX2, the port AXU4, the first end a and the second end b of the third switching unit SW3, and the port A3, thereby realizing the third transmission of the transmitting signal.
In the fourth case, the first terminal a and the third terminal c of the first switching unit SW1 are turned on, and the first terminal a and the third terminal c of the third switching unit SW3 are turned on. At this time, the input terminal of the first amplifier PA1 inputs a transmission signal through the port IN 1. The transmitting signal is sequentially output to the fourth antenna ANT4 through the first amplifier PA1, the first filter F1, the first end a and the third end c of the first switching unit SW1, the port AUX2, the port AXU4, the first end a and the third end c of the third switching unit SW3, and the port A4, thereby realizing fourth transmission of the transmitting signal.
The working process of the rf module 210 meeting the downlink four-way requirement is as follows:
in the first case, the first antenna ANT1 is configured to receive a first reception signal, and the first switching device K1 is turned on. At this time, the first received signal may be output from the port OUT1 through the port A1, the second filter F2, the first switching device K1, and the second amplifier LNA1 in order, thereby achieving the first path of reception of the signal. In the second case, the second antenna ANT2 is configured to receive a second reception signal, and the second switching device K2 is turned on. At this time, the second reception signal may be output from the port OUT2 via the port A2, the third filter F3, the second switching device K2, and the third amplifier LNA2 in order, thereby achieving the second path reception of the signal. In the third case, the third antenna ANT3 is configured to receive a third reception signal, and the ninth switching device K9 is turned on. At this time, the third reception signal may be output from the port OUT3 via the port A3, the fifth filter F5, the ninth switching device K9, and the fifth amplifier LNA3 in order, thereby realizing the third reception of the signal. In the fourth case, the fourth antenna ANT4 is configured to receive a fourth reception signal, and the tenth switching device K10 is turned on. At this time, the fourth reception signal may be output from the port OUT4 via the port A4, the sixth filter F6, the tenth switching device K10, and the sixth amplifier LNA4 in order, thereby achieving fourth reception of the signal. In this embodiment, the first filter F1 is a transmitting filter, and the second filter F2, the third filter F3, the fifth filter F5, and the sixth filter F6 are receiving filters.
Fig. 9 is a radio frequency circuit diagram of another electronic device 20 provided in an embodiment of the present application. As shown in fig. 9, the first switching unit SW1 includes a fifth switching device K5 and a sixth switching device K6. The first terminal of the fifth switching device K5 and the first terminal of the sixth switching device K6 are both connected to the output terminal of the transmitting unit 2122. A second terminal of the fifth switching device K5 is connected to the first terminal a of the second switching unit SW 2. The second terminal of the sixth switching device K6 is connected to the first terminal a of the third switching unit SW 3. As such, when the fifth switching device K5 is turned on, the first and second terminals a and b of the first switching unit SW1 are turned on. When the sixth switching device K6 is turned on, the first terminal a and the third terminal c of the first switching unit SW1 are turned on.
The second switching unit SW2 includes a seventh switching device K7 and an eighth switching device K8. The first terminal of the seventh switching device K7 and the first terminal of the eighth switching device K8 are both connected to the second terminal b of the first switching unit SW1, the second terminal of the seventh switching device K7 is connected to the first antenna ANT1 and the input terminal of the first receiving unit 2142, and the second terminal of the eighth switching device K8 is connected to the second antenna ANT2 and the input terminal of the second receiving unit 2144. As such, when the seventh switching device K7 is turned on, the first and second terminals a and b of the second switching unit SW2 are turned on. When the eighth switching device K8 is turned on, the first terminal a and the third terminal c of the second switching unit SW2 are turned on.
The third switching unit SW3 includes an eleventh switching device K11 and a twelfth switching device K12. The first terminal of the eleventh switching device K11 and the first terminal of the twelfth switching device K12 are both connected to the third terminal c of the first switching unit SW1, the second terminal of the eleventh switching device K11 is connected to the third antenna ANT3 and the input terminal of the third receiving unit 2162, and the second terminal of the twelfth switching device K12 is connected to the fourth antenna ANT4 and the input terminal of the fourth receiving unit 2164. Thus, when the eleventh switching device K11 is turned on, the first and second terminals a and b of the third switching unit SW3 are turned on. When the twelfth switching device K12 is turned on, the first terminal a and the third terminal c of the third switching unit SW3 are turned on. As can be seen, the first, second and third switching units SW1, SW2 and SW3 have identical structures.
In the embodiment shown in fig. 9, the first sub-module 212 further includes a PA control circuit and a SW1 control circuit. The PA control circuit is used for controlling the operation of the first amplifier PA 1. The SW1 control circuit is used for controlling the on and off of the fifth switching device K5 and the sixth switching device K6 in the first switching unit SW 1. The first sub-module 212 also has a port CPLOUT. The port CPLOUT is connected to the coupler. The coupler is used for detecting the power of the transmission signal output by the first filter F1. The power detected by the coupler is output from port CPLOUT.
The second sub-module 214 further includes an SW2 control circuit and a first receiving control circuit. The SW2 control circuit is configured to control on and off of the seventh switching device K7 and the eighth switching device K8 in the second switching unit SW 2. The first receiving control circuit is used for controlling on and off of the first switching device K1 in the first receiving unit 2142, and for controlling the operation of the second amplifier LNA1 in the first receiving unit 2142. The first receiving control circuit is further configured to control on and off of the second switching device K2 in the second receiving unit 2144, and to control operation of the third amplifier LNA2 in the second receiving unit 2144.
The third sub-module 216 further includes an SW3 control circuit and a second receiving control circuit. Wherein the SW3 control circuit is used for controlling the on and off of the eleventh switching device K11 and the twelfth switching device K12 in the third switching unit SW 3. The second reception control circuit is for controlling on and off of the ninth switching device K9 in the third receiving unit 2162, and for controlling the operation of the fifth amplifier LNA3 in the third receiving unit 2162. The second reception control circuit is also used for controlling on and off of the tenth switching device K10 in the fourth receiving unit 2164, and for controlling the operation of the sixth amplifier LNA4 in the fourth receiving unit 2164.
In some embodiments, in the rf module 210 shown in fig. 9, each of the first sub-module 212, the second sub-module 214, and the third sub-module 216 may operate in the 3300MHz (megahertz) to 5500MHz frequency band, i.e., the N77 frequency band and the N79 frequency band.
Fig. 10 is a layout diagram of a second sub-module 214 according to an embodiment of the present application, in which a second filter F2, a third filter F3, a fifth switching unit SW5, a second amplifier LNA1 and a third amplifier LNA2 are shown. The fifth switching unit SW5 integrates a first switching device K1 and a second switching device K2 (not shown in the drawing). The first switching device K1 may be connected between the first terminal a and the second terminal b of the fifth switching unit SW5, and the second switching device K2 may be connected between the third terminal c and the fourth terminal d of the fifth switching unit SW 5. As shown in fig. 10, the fifth switching unit SW5 is connected between the second filter F2 and the second amplifier LNA1 and is connected between the third filter F3 and the third amplifier LNA2. In this case, the fifth switching unit SW5, the second amplifier LNA1 and the third amplifier LNA2 may be formed on the same wafer. The second terminal b of the fifth switching unit SW5 and the second amplifier LNA1 may be directly connected without being connected through the substrate trace 2102. Similarly, the fourth terminal d of the fifth switch unit SW5 and the third amplifier LNA2 may be directly connected, and the connection via the substrate trace 2102 is not required. In this way, the bump 2104 is not formed on the second terminal b of the fifth switching unit SW5, the input terminal of the second amplifier LNA1, the fourth terminal d of the fifth switching unit SW5, and the input terminal of the third amplifier LNA2. As can be seen by comparing fig. 5, 6 and 10, in the embodiment of the present application, the use of the substrate trace 2102 and the formation of the bump 2104 in the downlink circuit can be reduced, so that the trace loss can be reduced. The layout of the third sub-module 216 is the same as that of the second sub-module 214, and will not be described again.
2) Fig. 11 is a radio frequency circuit diagram of yet another electronic device 20 provided in an embodiment of the present application. As shown in fig. 11, the transmitting unit 2122 includes a first amplifier PA1, a first filter F1, a fourth switching unit SW4, a fourth amplifier PA2, and a fourth filter F4. The first filter F1 and the fourth filter F4 are both transmission filters. The fourth switch unit SW4 has a first terminal a, a second terminal b and a third terminal c, and the second terminal b and the third terminal c of the fourth switch unit SW4 can be turned on with the first terminal a. The output terminal of the first amplifier PA1 is connected to the first terminal of the first filter F1, and the second terminal of the first filter F1 is connected to the first terminal a of the fourth switching unit SW 4. The output terminal of the fourth amplifier PA2 is connected to the first terminal of the fourth filter F4, and the second terminal of the fourth filter F4 is connected to the second terminal b of the fourth switching unit SW 4. The third terminal c of the fourth switching unit SW4 is connected to the first terminal a of the first switching unit SW 1. The first sub-module 212 also has a port IN1, a port IN2, a port AUX1, and a port AUX2. The port IN1 is connected to the input of the first amplifier PA1, the port IN2 is connected to the input of the fourth amplifier PA2, the port AUX1 is connected to the second terminal b of the first switching unit SW1, and the port AUX2 is connected to the third terminal c of the first switching unit SW 1. In this embodiment, the operating frequency band of the first amplifier PA1, the first filter F1 may be different from the operating frequency band of the fourth amplifier PA2, the fourth filter F4. For example, the first amplifier PA1 and the first filter F1 may operate in the N77 band, and the fourth amplifier PA2 and the fourth filter F4 may operate in the N78 band. Thus, the frequency bandwidth of the transmitted signal when the rf module 210 meets the four-antenna SRS antenna selection requirement can be widened.
In the embodiment shown in fig. 11, the structures of the second sub-module 214 and the third sub-module 216 are identical to the structures of the second sub-module 214 and the third sub-module 216 in the embodiment shown in fig. 8, and will not be described again. Meanwhile, since the first receiving unit 2142 and the second receiving unit 2144 are both located in the second sub-module 214, and the third receiving unit 2162 and the fourth receiving unit 2164 are both located in the third sub-module 216, in the embodiment shown in fig. 11, the working process of the rf module 210 for satisfying the downlink four-way requirement is also identical to the working process of the rf module 210 for satisfying the downlink four-way requirement in the embodiment shown in fig. 8, and will not be repeated.
When the rf module 210 works, the working process of the rf module 210 meeting the four-antenna SRS antenna selection requirement is as follows: port IN1 inputs a first transmit signal or port IN2 inputs a second transmit signal.
When the port IN1 inputs the first transmission signal, the first terminal a and the third terminal c of the fourth switching unit SW4 are turned on. At this time, the input terminal of the first amplifier PA1 inputs the first transmission signal through the port IN 1. The first transmission signal reaches the first end a of the first switching unit SW1 sequentially through the first amplifier PA1, the first filter F1, and the first end a and the third end c of the fourth switching unit SW 4. In the first case, the first terminal a and the second terminal b of the first switching unit SW1 are turned on, and the first terminal a and the second terminal b of the second switching unit SW2 are turned on, so that the first path of emission of the emission signal can be realized. In the second case, the first terminal a and the second terminal b of the first switching unit SW1 are turned on, and the first terminal a and the third terminal c of the second switching unit SW2 are turned on, so that the second path of the transmission signal can be transmitted. In the third case, the first terminal a and the third terminal c of the first switching unit SW1 are turned on, and the first terminal a and the second terminal b of the third switching unit SW3 are turned on, so that the third transmission of the transmission signal can be realized. In the fourth case, the first terminal a and the third terminal c of the first switching unit SW1 are turned on, and the first terminal a and the third terminal c of the third switching unit SW3 are turned on, so that the fourth transmission of the transmission signal can be realized.
When the port IN2 inputs the second transmission signal, the second terminal b and the third terminal c of the fourth switching unit SW4 are turned on. At this time, the input terminal of the second amplifier PA2 inputs the second transmission signal through the port IN 2. The second transmission signal reaches the first end a of the first switching unit SW1 sequentially through the second amplifier PA2, the fourth filter F4, the second end b and the third end c of the fourth switching unit SW 4. In the first case, the first terminal a and the second terminal b of the first switching unit SW1 are turned on, and the first terminal a and the second terminal b of the second switching unit SW2 are turned on, so that the first path of emission of the emission signal can be realized. In the second case, the first terminal a and the second terminal b of the first switching unit SW1 are turned on, and the first terminal a and the third terminal c of the second switching unit SW2 are turned on, so that the second path of the transmission signal can be transmitted. In the third case, the first terminal a and the third terminal c of the first switching unit SW1 are turned on, and the first terminal a and the second terminal b of the third switching unit SW3 are turned on, so that the third transmission of the transmission signal can be realized. In the fourth case, the first terminal a and the third terminal c of the first switching unit SW1 are turned on, and the first terminal a and the third terminal c of the third switching unit SW3 are turned on, so that the fourth transmission of the transmission signal can be realized.
Fig. 12 is a radio frequency circuit diagram of yet another electronic device 20 provided in an embodiment of the present application. In the embodiment shown in fig. 12, the structures of the second sub-module 214, the third sub-module 216 and the first switch unit SW1 are identical to the structures of the second sub-module 214, the third sub-module 216 and the first switch unit SW1 in the embodiment shown in fig. 9; and the use of the substrate trace 2102 and the formation of the bump 2104 in the downlink circuit can be reduced, so that the trace loss can be reduced, and the description is omitted.
The fourth switching unit SW4 includes a third switching device K3 and a fourth switching device K4. The first end of the third switching device K3 is connected to the second end of the first filter F1, the first end of the fourth switching device K4 is connected to the second end of the fourth filter F4, and the second end of the third switching device K3 and the second end of the fourth switching device K4 are both connected to the first end a of the first switching unit SW 1. Thus, when the third switching device K3 is turned on, the first terminal a and the third terminal c of the fourth switching unit SW4 are turned on. When the fourth switching device K4 is turned on, the second terminal b and the third terminal c of the fourth switching unit SW4 are turned on.
In the embodiment shown in fig. 12, the first sub-module 212 further includes a PA control circuit and a SW4 control circuit. The PA control circuit is used for controlling the operation of the first amplifier PA1 and the fourth amplifier PA 2. The SW4 control circuit is used for controlling the on and off of the third switching device K3 and the fourth switching device K4 in the fourth switching unit SW 4. The first sub-module 212 also has a port CPLOUT. The port CPLOUT is connected to the coupler. The coupler is used for detecting the power of the first transmission signal and the second transmission signal. The power detected by the coupler is output from port CPLOUT.
In some embodiments, in the rf module 210 shown in fig. 12, each of the first sub-module 212, the second sub-module 214, and the third sub-module 216 may operate in the 3300MHz to 5500MHz frequency band, i.e., the N77 frequency band and the N79 frequency band.
3) Fig. 13 is a radio frequency block diagram of another electronic device 20 according to an embodiment of the present application. As shown in fig. 13, the second sub-module 214 further includes a first filter F1 and a second filter F2. The first end of the first filter F1 is connected to the second end b of the second switching unit SW2 and the input end of the first receiving unit 2142, and the second end of the first filter F1 is used for being connected to the first antenna ANT 1. The first end of the second filter F2 is connected to the third end c of the second switching unit SW2 and the input end of the second receiving unit 2144, and the second end of the second filter F2 is connected to the second antenna ANT 2.
The third sub-module 216 further includes a third filter F3 and a fourth filter F4. The first end of the third filter F3 is connected to the second end b of the third switching unit SW3 and the input end of the third receiving unit 2162, and the second end of the third filter F3 is used for being connected to the third antenna ANT 3. The first end of the fourth filter F4 is connected to the third end c of the third switching unit SW3 and the input end of the fourth receiving unit 2164, and the second end of the fourth filter F4 is connected to the fourth antenna ANT 4.
Based on the radio frequency structure shown in fig. 13, the radio frequency circuit of the electronic device 20 may be as shown in fig. 14. Referring to fig. 14, the transmitting unit 2122 includes a first amplifier PA1. The output terminal of the first amplifier PA1 is connected to the first terminal a of the first switching unit SW 1. The first sub-module 212 also has a port IN1, a port AUX1, and a port AUX2. The port IN1 is connected to the input terminal of the first amplifier PA1, the port AUX1 is connected to the second terminal b of the first switching unit SW1, and the port AUX2 is connected to the third terminal c of the first switching unit SW 1.
In the second sub-module 214, the first receiving unit 2142 includes a first switching device K1 and a second amplifier LNA1. The first terminal of the first switching device K1 is connected to the first terminal of the first filter F1 and the second terminal b of the second switching unit SW2, and the second terminal of the first switching device K1 is connected to the input terminal of the second amplifier LNA1. The second receiving unit 2144 includes a second switching device K2 and a third amplifier LNA2. The first end of the second switching device K2 is connected to the first end of the second filter F2 and the third end c of the second switching unit SW2, and the second end of the second switching device K2 is connected to the input end of the third amplifier LNA2. The second sub-module 214 also has a port OUT1, a port OUT2, a port A1, a port A2, and a port AUX3. The port A1 is used for connection with the first antenna ANT1, that is, the second end of the first filter F1 may be connected with the first antenna ANT1 through the port A1. The port A2 is used for connection with the second antenna ANT2, that is, the second end of the second filter F2 may be connected with the second antenna ANT2 through the port A2. The first terminal a of the second switching unit SW2 is connected to the port AUX3. Port AUX3 is connected to port AUX 1. The output of the second amplifier LNA1 is connected to the port OUT 1. The output of the third amplifier LNA2 is connected to the port OUT 2. Wherein the first switching device K1 and the second switching device K2 may be integrated as the fifth switching unit SW5.
Correspondingly, in the third sub-module 216, the third receiving unit 2162 includes a ninth switching device K9 and a fifth amplifier LNA3. The first terminal of the ninth switching device K9 is connected to the first terminal of the third filter F3 and the second terminal b of the third switching unit SW3, and the second terminal of the ninth switching device K9 is connected to the input terminal of the fifth amplifier LNA3. The fourth receiving unit 2164 includes a tenth switching device K10 and a sixth amplifier LNA4. The first terminal of the tenth switching device K10 is connected to the first terminal of the fourth filter F4 and the third terminal c of the third switching unit SW3, and the second terminal of the tenth switching device K10 is connected to the input terminal of the sixth amplifier LNA4. The third sub-module 216 also has port OUT3, port OUT4, port A3, port A4, and port AUX4. The port A3 is used to connect with the third antenna ANT3, that is, the second end of the third filter F3 may be connected with the third antenna ANT3 through the port A3. The port A4 is used to connect with the fourth antenna ANT4, that is, the second end of the fourth filter F4 may be connected with the fourth antenna ANT4 through the port A4. The first terminal a of the third switching unit SW3 is connected to the port AUX4. Port AUX4 is connected to port AUX 2. The output of the fifth amplifier LNA3 is connected to the port OUT 3. The output of the sixth amplifier LNA4 is connected to the port OUT 4. Among them, the ninth switching device K9 and the tenth switching device K10 may be integrated as a sixth switching unit SW6.
When the rf module 210 works, the working process of the rf module 210 meeting the four-antenna SRS antenna selection requirement is as follows: when the port IN1 inputs a transmit signal, then: in the first case, the first terminal a and the second terminal b of the first switching unit SW1 are turned on, and the first terminal a and the second terminal b of the second switching unit SW2 are turned on. At this time, the input terminal of the first amplifier PA1 inputs a transmission signal through the port IN 1. The transmitting signal is sequentially output to the first antenna ANT1 through the first amplifier PA1, the first end a and the second end b of the first switch unit SW1, the port AUX3, the first end a and the second end b of the second switch unit SW2, the first filter F1 and the port A1, thereby realizing the first path of transmission of the transmitting signal.
In the second case, the first terminal a and the second terminal b of the first switching unit SW1 are turned on, and the first terminal a and the third terminal c of the second switching unit SW2 are turned on. At this time, the input terminal of the first amplifier PA1 inputs a transmission signal through the port IN 1. The transmitting signal is sequentially output to the second antenna ANT2 through the first amplifier PA1, the first end a and the second end b of the first switch unit SW1, the port AUX3, the first end a and the third end c of the second switch unit SW2, the second filter F2 and the port A2, thereby realizing the second path transmission of the transmitting signal.
In the third case, the first terminal a and the third terminal c of the first switching unit SW1 are turned on, and the first terminal a and the second terminal b of the third switching unit SW3 are turned on. At this time, the input terminal of the first amplifier PA1 inputs a transmission signal through the port IN 1. The transmitting signal is sequentially output to the third antenna ANT3 through the first amplifier PA1, the first end a and the third end c of the first switching unit SW1, the port AUX2, the port AXU4, the first end a and the second end b of the third switching unit SW3, the third filter F3 and the port A3, thereby realizing the third transmission of the transmitting signal.
In the fourth case, the first terminal a and the third terminal c of the first switching unit SW1 are turned on, and the first terminal a and the third terminal c of the third switching unit SW3 are turned on. At this time, the input terminal of the first amplifier PA1 inputs a transmission signal through the port IN 1. The transmitting signal is sequentially output to the fourth antenna ANT4 through the first amplifier PA1, the first end a and the third end c of the first switching unit SW1, the port AUX2, the port AXU4, the first end a and the third end c of the third switching unit SW3, the fourth filter F4 and the port A4, thereby realizing fourth transmission of the transmitting signal.
The working process of the rf module 210 meeting the downlink four-way requirement is as follows:
in the first case, the first antenna ANT1 is configured to receive a first reception signal, and the first switching device K1 is turned on. At this time, the first received signal may be output from the port OUT1 through the port A1, the first filter F1, the first switching device K1, and the second amplifier LNA1 in order, thereby achieving the first path of reception of the signal. In the second case, the second antenna ANT2 is configured to receive a second reception signal, and the second switching device K2 is turned on. At this time, the second reception signal may be output from the port OUT2 via the port A2, the second filter F2, the second switching device K2, and the third amplifier LNA2 in order, thereby achieving the second path reception of the signal. In the third case, the third antenna ANT3 is configured to receive a third reception signal, and the ninth switching device K9 is turned on. At this time, the third reception signal may be output from the port OUT3 via the port A3, the third filter F3, the ninth switching device K9, and the fifth amplifier LNA3 in order, thereby realizing the third reception of the signal. In the fourth case, the fourth antenna ANT4 is configured to receive a fourth reception signal, and the tenth switching device K10 is turned on. At this time, the fourth reception signal may be output from the port OUT4 via the port A4, the fourth filter F4, the tenth switching device K10, and the sixth amplifier LNA4 in order, thereby achieving fourth-path reception of the signal. In this embodiment, the first filter F1, the second filter F2, the third filter F3, and the fourth filter F4 are all transmitting-receiving filters. The working frequency bands of the first filter F1, the second filter F2, the third filter F3 and the fourth filter F4 are the same.
As can be seen by comparing the rf module 210 shown in fig. 14 with the rf module 210 shown in fig. 8, in the embodiment shown in fig. 14, the rf module 210 can save a filter, thereby saving the cost and reducing the layout area of the rf module 210; in addition, the transmission power of four-antenna SRS antenna selection can be improved. Fig. 15 is a radio frequency circuit diagram of still another electronic device 20 provided in the embodiment of the present application, in which the specific structures of the first switch unit SW1, the second switch unit SW2, and the third switch unit SW3 are also shown. In addition, as shown in fig. 15, in this embodiment, the first sub-module 212 may include a PA control circuit and an SW1 control circuit; the second sub-module 214 further includes an SW2 control circuit and a first receiving control circuit; the third sub-module 216 further includes a SW3 control circuit and a second receiving control circuit, which will not be described herein.
In this possible case, the fifth switching unit SW5 is connected between the first filter F1 and the second amplifier LNA1 and between the second filter F2 and the third amplifier LNA 2. In this case, the fifth switching unit SW5, the second amplifier LNA1 and the third amplifier LNA2 may be formed on the same wafer. The second terminal b of the fifth switching unit SW5 and the second amplifier LNA1 may be directly connected without being connected through the substrate trace 2102. Similarly, the fourth terminal d of the fifth switch unit SW5 and the third amplifier LNA2 may be directly connected, and the connection via the substrate trace 2102 is not required. In this way, the bump 2104 is not formed at the second end b of the fifth switching unit SW5, the input end of the second amplifier LNA1, the fourth end d of the fifth switching unit SW5 and the input end of the third amplifier LNA2, so that the use of the substrate trace 2102 and the formation of the bump 2104 in the down-link circuit can be reduced, and the trace loss can be reduced.
In some embodiments, in the rf module 210 shown in fig. 14, each of the first sub-module 212, the second sub-module 214, and the third sub-module 216 may operate in the 3300MHz to 5500MHz frequency band, i.e., the N77 frequency band and the N79 frequency band.
4) The radio frequency circuitry of the electronic device 20 may also be as shown in fig. 16 based on the radio frequency structure shown in fig. 13. Referring to fig. 16, the transmitting unit 2122 includes a first amplifier PA1, a fourth switching unit SW4, and a fourth amplifier PA2. The output end of the first amplifier PA1 is connected to the first end a of the fourth switching unit SW4, the output end of the fourth amplifier PA2 is connected to the second end b of the fourth switching unit SW4, and the third end c of the fourth switching unit SW4 is connected to the first end a of the first switching unit SW 1. The first sub-module 212 also has a port IN1, a port IN2, a port AUX1, and a port AUX2. The port IN1 is connected to the input of the first amplifier PA1, the port IN2 is connected to the input of the fourth amplifier PA2, the port AUX1 is connected to the second terminal b of the first switching unit SW1, and the port AUX2 is connected to the third terminal c of the first switching unit SW 1. In this embodiment, the operating frequency band of the first amplifier PA1 may be different from that of the fourth amplifier PA2, and the operating frequency bands of the first amplifier PA1 and the fourth amplifier PA2 are each within the operating frequency band range of each filter (including the first filter F1, the second filter F2, the third filter F3, and the fourth filter F4). For example, the first amplifier PA1 may operate in the N77 band, and the fourth amplifier PA2 may operate in the N78 band; each filter operates in the N77 and N78 bands. Thus, the frequency bandwidth of the transmitted signal when the rf module 210 meets the four-antenna SRS antenna selection requirement can be widened.
In the embodiment shown in fig. 16, the structures of the second sub-module 214 and the third sub-module 216 are identical to the structures of the second sub-module 214 and the third sub-module 216 in the embodiment shown in fig. 14, and will not be described again. Meanwhile, since the first receiving unit 2142 and the second receiving unit 2144 are both located in the second sub-module 214, and the third receiving unit 2162 and the fourth receiving unit 2164 are both located in the third sub-module 216, in the embodiment shown in fig. 16, the working process of the rf module 210 for satisfying the downlink four-way requirement is also identical to the working process of the rf module 210 for satisfying the downlink four-way requirement in the embodiment shown in fig. 14, and will not be repeated.
When the rf module 210 works, the working process of the rf module 210 meeting the four-antenna SRS antenna selection requirement is as follows: port IN1 inputs a first transmit signal or port IN2 inputs a second transmit signal.
When the port IN1 inputs the first transmission signal, the first terminal a and the third terminal c of the fourth switching unit SW4 are turned on. At this time, the input terminal of the first amplifier PA1 inputs the first transmission signal through the port IN 1. The first transmission signal reaches the first terminal a of the first switching unit SW1 sequentially through the first amplifier PA1, the first terminal a and the third terminal c of the fourth switching unit SW 4. In the first case, the first terminal a and the second terminal b of the first switching unit SW1 are turned on, and the first terminal a and the second terminal b of the second switching unit SW2 are turned on, so that the first path of emission of the emission signal can be realized. In the second case, the first terminal a and the second terminal b of the first switching unit SW1 are turned on, and the first terminal a and the third terminal c of the second switching unit SW2 are turned on, so that the second path of the transmission signal can be transmitted. In the third case, the first terminal a and the third terminal c of the first switching unit SW1 are turned on, and the first terminal a and the second terminal b of the third switching unit SW3 are turned on, so that the third transmission of the transmission signal can be realized. In the fourth case, the first terminal a and the third terminal c of the first switching unit SW1 are turned on, and the first terminal a and the third terminal c of the third switching unit SW3 are turned on, so that the fourth transmission of the transmission signal can be realized.
When the port IN2 inputs the second transmission signal, the second terminal b and the third terminal c of the fourth switching unit SW4 are turned on. At this time, the input terminal of the second amplifier PA2 inputs the second transmission signal through the port IN 2. The second transmit signal reaches the first terminal a of the first switching unit SW1 sequentially through the second amplifier PA2, the second terminal b and the third terminal c of the fourth switching unit SW 4. In the first case, the first terminal a and the second terminal b of the first switching unit SW1 are turned on, and the first terminal a and the second terminal b of the second switching unit SW2 are turned on, so that the first path of emission of the emission signal can be realized. In the second case, the first terminal a and the second terminal b of the first switching unit SW1 are turned on, and the first terminal a and the third terminal c of the second switching unit SW2 are turned on, so that the second path of the transmission signal can be transmitted. In the third case, the first terminal a and the third terminal c of the first switching unit SW1 are turned on, and the first terminal a and the second terminal b of the third switching unit SW3 are turned on, so that the third transmission of the transmission signal can be realized. In the fourth case, the first terminal a and the third terminal c of the first switching unit SW1 are turned on, and the first terminal a and the third terminal c of the third switching unit SW3 are turned on, so that the fourth transmission of the transmission signal can be realized.
Fig. 17 is a radio frequency circuit diagram of yet another electronic device 20 provided in an embodiment of the present application. In the embodiment shown in fig. 17, the structures of the second sub-module 214, the third sub-module 216, and the first switch unit SW1 are identical to the structures of the second sub-module 214, the third sub-module 216, and the first switch unit SW1 in the embodiment shown in fig. 15; and the use of the substrate trace 2102 and the formation of the bump 2104 in the downlink circuit can be reduced, so that the trace loss can be reduced, and the description is omitted.
The fourth switching unit SW4 includes a third switching device K3 and a fourth switching device K4. The first end of the third switching device K3 is connected to the output end of the first amplifier PA1, the first end of the fourth switching device K4 is connected to the output end of the fourth amplifier PA2, and the second end of the third switching device K3 and the second end of the fourth switching device K4 are both connected to the first end a of the first switching unit SW 1. Thus, when the third switching device K3 is turned on, the first terminal a and the third terminal c of the fourth switching unit SW4 are turned on. When the fourth switching device K4 is turned on, the second terminal b and the third terminal c of the fourth switching unit SW4 are turned on.
In the embodiment shown in fig. 17, the first sub-module 212 further includes a PA control circuit and a SW4 control circuit. The PA control circuit is used for controlling the operation of the first amplifier PA1 and the fourth amplifier PA 2. The SW4 control circuit is used for controlling the on and off of the third switching device K3 and the fourth switching device K4 in the fourth switching unit SW 4. The first sub-module 212 also has a port CPLOUT. The port CPLOUT is connected to the coupler. The coupler is used for detecting the power of the first transmission signal and the second transmission signal. The power detected by the coupler is output from port CPLOUT.
In some embodiments, in the rf module 210 shown in fig. 17, each of the first sub-module 212, the second sub-module 214, and the third sub-module 216 may operate in the 3300MHz to 5500MHz frequency band, i.e., the N77 frequency band and the N79 frequency band.
The radio frequency module 210 provided in the embodiment of the present application can satisfy four antenna SRS antenna selection requirements and downlink four-way requirements, and can be suitable for all application scenarios requiring to satisfy four antenna SRS antenna selection requirements and downlink requirements, where applicable frequency bands include N41 frequency band, N77 frequency band, N78 frequency band, N79 frequency band and N104 frequency band. In addition, since the transmitting unit 2122 is located in the first sub-module 212, the first receiving unit 2142 and the second receiving unit 2144 are located in the second sub-module 214, the third receiving unit 2162 and the fourth receiving unit 2164 are located in the third sub-module 216, and the structures of the second sub-module 214 and the third sub-module 216 are identical, the connection modes of any one downlink circuit and other devices are identical, so that the power consumption of the downlink circuits in different sub-modules is identical, and the stability of the electronic device 20 for receiving wireless signals can be improved. Meanwhile, in the present application, since the structures of the second sub-module 214 and the third sub-module 216 are identical, that is, the second sub-module 214 and the third sub-module 216 are identical sub-modules, the problems of sub-module retransmission development, repeated packaging, repeated testing and the like with the same functions are not caused, and the indexes of gain, noise, power consumption and the like of each receiving unit in the second sub-module 214 and the third sub-module 216 can be kept consistent. The transmitting unit 2122 may include two amplifiers operating in different frequency bands, so as to widen the frequency bandwidth of the transmitting signal when the rf module 210 meets the four-antenna SRS antenna selection requirement. In this embodiment, the first switch unit SW1, the second switch unit SW2 and the third switch unit SW3 are completely identical in structure, so that the difficulty in designing the rf module 210 can be reduced.
In the embodiment of the present application, the number of devices in the first sub-module 212 is greatly reduced, so that the development difficulty of the first sub-module 212 can be reduced, the gain of the downlink circuit can be improved, and the noise and the power consumption of the downlink circuit can be reduced. In each downstream circuit, the switching devices are directly connected to the amplifier without connection through the substrate trace 2102. Thus, the circuit layout of the rf module 210 can be optimized, and the use of the substrate trace 2102 and the formation of the bump 2104 in the downlink circuit can be reduced, so that the trace loss can be reduced. In addition, in the embodiment of the application, each downlink circuit only includes a filter, a switching device and an amplifier, and the loss path is short. The transmitting signal can reach the antenna through the amplifier, the filter and the two switch units, and the loss path is short.
The embodiment of the present application further provides an electronic device 20, which includes a first antenna ANT1, a second antenna ANT2, a third antenna ANT3, a fourth antenna ANT4, and a radio frequency module 210 in any one of the foregoing embodiments. And will not be described in detail.
The above embodiments are only for illustrating the technical solution of the present application, and are not limiting; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present application, and are intended to be included in the scope of the present application.

Claims (14)

1. The radio frequency module is characterized by comprising a first sub-module, a second sub-module and a third sub-module;
the first sub-module comprises a transmitting unit and a first switch unit; the second sub-module comprises a first receiving unit, a second receiving unit and a second switching unit; the third sub-module comprises a third receiving unit, a fourth receiving unit and a third switching unit; the first receiving unit, the second receiving unit, the third receiving unit and the fourth receiving unit have the same structure, and the second switching unit and the third switching unit have the same structure;
the output end of the transmitting unit is connected with the first end of the first switch unit; the second end of the first switch unit is connected with the first end of the second switch unit, the second end of the second switch unit is connected with the first antenna and the input end of the first receiving unit, and the third end of the second switch unit is connected with the second antenna and the input end of the second receiving unit; the third end of the first switch unit is connected with the first end of the third switch unit, the second end of the third switch unit is connected with the third antenna and the input end of the third receiving unit, and the third end of the third switch unit is connected with the fourth antenna and the input end of the fourth receiving unit.
2. The radio frequency module of claim 1, wherein the transmitting unit comprises: a first amplifier and a first filter;
the output end of the first amplifier is connected with the first end of the first filter, and the second end of the first filter is connected with the first end of the first switch unit.
3. The radio frequency module of claim 1, wherein the first receiving unit comprises: a second filter, a first switching device and a second amplifier;
the first end of the second filter is connected with the first antenna and the second end of the second switch unit, the second end of the second filter is connected with the first end of the first switch device, and the second end of the first switch device is connected with the input end of the second amplifier.
4. A radio frequency module according to any one of claims 1 to 3, wherein the second receiving unit comprises: a third filter, a second switching device, and a third amplifier;
the first end of the third filter is connected with the second antenna and the third end of the second switch unit, the second end of the third filter is connected with the first end of the second switch device, and the second end of the second switch device is connected with the input end of the third amplifier.
5. The radio frequency module of claim 1, wherein the transmitting unit comprises: a first amplifier, a first filter, a fourth switching unit, a fourth amplifier, and a fourth filter;
the output end of the first amplifier is connected with the first end of the first filter, and the second end of the first filter is connected with the first end of the fourth switch unit; the output end of the fourth amplifier is connected with the first end of the fourth filter, and the second end of the fourth filter is connected with the second end of the fourth switch unit; the third end of the fourth switch unit is connected with the first end of the first switch unit.
6. The radio frequency module of claim 1, wherein the second sub-module further comprises: a first filter and a second filter;
the first end of the first filter is connected with the second end of the second switch unit and the input end of the first receiving unit, and the second end of the first filter is used for being connected with the first antenna;
the first end of the second filter is connected with the third end of the second switch unit and the input end of the second receiving unit, and the second end of the second filter is used for being connected with the second antenna.
7. The radio frequency module of claim 6, wherein the transmitting unit comprises: and the output end of the first amplifier is connected with the first end of the first switch unit.
8. The radio frequency module of claim 6, wherein the first receiving unit comprises: a first switching device and a second amplifier;
the first end of the first switching device is connected with the first end of the first filter, and the second end of the first switching device is connected with the input end of the second amplifier.
9. The radio frequency module according to any one of claims 6 to 8, wherein the second receiving unit comprises: a second switching device and a third amplifier;
the first end of the second switching device is connected with the first end of the second filter, and the second end of the second switching device is connected with the input end of the third amplifier.
10. The radio frequency module of claim 6, wherein the transmitting unit comprises: a first amplifier, a fourth switching unit, and a fourth amplifier;
the output end of the first amplifier is connected with the first end of the fourth switch unit, the output end of the fourth amplifier is connected with the second end of the fourth switch unit, and the third end of the fourth switch unit is connected with the first end of the first switch unit.
11. The radio frequency module of claim 10, wherein the fourth switching unit comprises: a third switching device and a fourth switching device;
the first end of the third switching device is connected with the output end of the first amplifier, the first end of the fourth switching device is connected with the output end of the fourth amplifier, and the second end of the third switching device and the second end of the fourth switching device are connected with the first end of the first switching unit.
12. The radio frequency module of claim 1, wherein the first switching unit comprises: a fifth switching device and a sixth switching device;
the first end of the fifth switching device and the first end of the sixth switching device are both connected with the output end of the transmitting unit, the second end of the fifth switching device is connected with the first end of the second switching unit, and the second end of the sixth switching device is connected with the first end of the third switching unit.
13. The radio frequency module according to claim 1 or 12, wherein the second switching unit comprises: a seventh switching device and an eighth switching device;
the first end of the seventh switching device and the first end of the eighth switching device are both connected with the second end of the first switching unit, the second end of the seventh switching device is connected with the first antenna and the input end of the first receiving unit, and the second end of the eighth switching device is connected with the second antenna and the input end of the second receiving unit.
14. An electronic device comprising a first antenna, a second antenna, a third antenna, a fourth antenna, and a radio frequency module according to any one of claims 1 to 13.
CN202310001181.9A 2023-01-03 2023-01-03 Radio frequency module and electronic equipment Active CN115694522B (en)

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CN109861735B (en) * 2019-03-22 2022-07-15 维沃移动通信有限公司 Radio frequency front-end circuit and mobile terminal
CN110635821B (en) * 2019-10-31 2021-07-13 Oppo广东移动通信有限公司 Radio frequency circuit and electronic equipment
CN112272044B (en) * 2020-10-26 2022-07-01 维沃移动通信有限公司 Radio frequency circuit and electronic equipment
CN112383320B (en) * 2020-11-11 2022-04-12 维沃移动通信有限公司 Radio frequency circuit, electronic device and method for transmitting and receiving radio frequency signal
CN114124140B (en) * 2021-11-30 2023-05-05 Oppo广东移动通信有限公司 Radio frequency system and communication device
CN217406537U (en) * 2022-04-19 2022-09-09 Oppo广东移动通信有限公司 Radio frequency system and communication device

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CN115102557A (en) * 2022-06-07 2022-09-23 Oppo广东移动通信有限公司 Radio frequency front-end device and radio frequency system

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