CN110113063B - Radio frequency front-end circuit and terminal equipment - Google Patents
Radio frequency front-end circuit and terminal equipment Download PDFInfo
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- CN110113063B CN110113063B CN201910566348.XA CN201910566348A CN110113063B CN 110113063 B CN110113063 B CN 110113063B CN 201910566348 A CN201910566348 A CN 201910566348A CN 110113063 B CN110113063 B CN 110113063B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/005—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission adapting radio receivers, transmitters andtransceivers for operation on two or more bands, i.e. frequency ranges
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
- H04B1/40—Circuits
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
- H04B1/40—Circuits
- H04B1/401—Circuits for selecting or indicating operating mode
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
- H04B7/0413—MIMO systems
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Abstract
The application is suitable for the technical field of communication and provides a radio frequency front-end circuit and terminal equipment. The embodiment of the application provides a radio frequency front end circuit comprising 8 radio frequency front end circuits and a wireless local area network chip, and a 2.4G radio frequency front end module and a 5G radio frequency front end module or a 2.4G-5G radio frequency front end module are arranged in the radio frequency front end circuit, so that 2.4G and 5G frequency bands and 8 × 8MIMO can be supported, and data throughput and network capacity can be effectively improved; the GPS signal input and output end connected with the GPS radio frequency front end module is arranged on the radio frequency front end circuit, so that various radio frequency front end circuit scheme requirements of WiFi6 can be met.
Description
Technical Field
The application belongs to the technical field of communication, and particularly relates to a radio frequency front-end circuit and a terminal device.
Background
WiFi6 is the latest WiFi network protocol standard at present, and its standard code is 802.11ax, and supports 2.4G and 5G bands and 8 × 8MIMO (Multiple-Input Multiple-Output), and can share uplink and downlink data to 8 terminal devices at the same time, thereby effectively improving data throughput and network capacity. Currently, there are few rf front-end circuit schemes for WiFi6, and the scheme is still in the technological blank stage.
Content of application
In view of this, embodiments of the present application provide a radio frequency front end circuit and a terminal device, which can support 2.4G and 5G frequency bands and 8 × 8MIMO, and can effectively improve data throughput and network capacity.
A first aspect of the embodiments of the present application provides a radio frequency front end circuit, including M1 first radio frequency front end circuits, M2 second radio frequency front end circuits, M3 third radio frequency front end circuits, M4 fourth radio frequency front end circuits, and a wireless local area network chip;
the first radio frequency front terminal circuit comprises a 2.4G radio frequency front end module and a 5G radio frequency front end module which are connected with the wireless local area network chip;
the second radio frequency front terminal circuit comprises a 2.4G radio frequency front end module, a 5G radio frequency front end module and a GPS signal input/output end, wherein the 2.4G radio frequency front end module and the 5G radio frequency front end module are connected with the wireless local area network chip, and the GPS signal input/output end is used for being connected with the GPS radio frequency front end module;
the third radio frequency front terminal circuit comprises a 2.4G-5G radio frequency front end module connected with the wireless local area network chip;
the fourth radio frequency front terminal circuit comprises a 2.4G-5G radio frequency front end module connected with the wireless local area network chip and a GPS signal input/output end connected with the GPS radio frequency front end module;
wherein, M1+ M2+ M3+ M4 is 8, and M1, M2, M3 and M4 are all natural numbers.
A second aspect of the embodiments of the present application provides a terminal device, which includes the above radio frequency front-end circuit.
The embodiment of the application provides a radio frequency front end circuit comprising 8 radio frequency front end circuits and a wireless local area network chip, and a 2.4G radio frequency front end module and a 5G radio frequency front end module or a 2.4G-5G radio frequency front end module are arranged in the radio frequency front end circuit, so that 2.4G and 5G frequency bands and 8 × 8MIMO can be supported, and data throughput and network capacity can be effectively improved; the GPS signal input and output end connected with the GPS radio frequency front end module is arranged on the radio frequency front end circuit, so that various radio frequency front end circuit scheme requirements of WiFi6 can be met.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a radio frequency front-end circuit according to an embodiment of the present disclosure;
fig. 2 is a schematic structural diagram of a radio frequency front-end circuit according to a second embodiment of the present application;
fig. 3 and fig. 4 are schematic structural diagrams of an rf front-end circuit according to a third embodiment of the present application;
fig. 5 to 10 are schematic structural diagrams of an rf front-end circuit according to a fourth embodiment of the present application;
fig. 11 and 12 are schematic structural diagrams of an rf front-end circuit according to a fifth embodiment of the present application;
fig. 13 and fig. 14 are schematic structural diagrams of an rf front-end circuit according to a sixth embodiment of the present application;
fig. 15 to 17 are schematic structural diagrams of an rf front-end circuit according to a seventh embodiment of the present disclosure.
Detailed Description
In order to make the technical solutions better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
The terms "comprises" and "comprising," and any variations thereof, in the description and claims of this application and the drawings described above, are intended to cover non-exclusive inclusions. For example, a process, method, or system, article, or apparatus that comprises a list of steps or elements is not limited to only those steps or elements listed, but may alternatively include other steps or elements not listed, or inherent to such process, method, article, or apparatus. Furthermore, the terms "first," "second," and "third," etc. are used to distinguish between different objects and are not used to describe a particular order.
Example one
As shown in fig. 1, the present embodiment provides an rf front-end circuit 100, which includes M1 first rf front-end circuits 1, M2 second rf front-end circuits 2, M3 third rf front-end circuits 3, M4 fourth rf front-end circuits 4, and a wireless local area network chip (WLAN IC) 5;
wherein, M1+ M2+ M3+ M4 is 8, and M1, M2, M3 and M4 are all natural numbers.
In application, specific values of M1, M2, M3 and M4 may be set according to actual needs, as long as M1+ M2+ M3+ M4 is guaranteed to be 8.
In one embodiment, M1+ M2+ M3+ M4 is ≧ 1 and M1, M2, M3 and M4 are all natural numbers.
In application, the rf front-end circuit may also support any n × nMIMO (where n is greater than or equal to 1 and n is a natural number), and any number of the first rf front-end circuit, the second rf front-end circuit, the third rf front-end circuit, the fourth rf front-end circuit, and the wlan chip may be selected according to actual needs.
Fig. 1 schematically illustrates a structure of the rf front-end circuit when M1, M2, M3, M4, and M2 are used as examples.
The rf Front-end circuit provided in this embodiment is a brand-new rf Front-end architecture, and does not use the existing Front-end module (FEM). The existing rf front-end module generally includes an Antenna Tuner (Antenna Tuner), an Antenna Switch (Antenna Switch), a multiplexer (demultiplexer), a transmit/receive Switch (T/R Switch), a filter (e.g., a Surface Acoustic Wave (SAW) filter, a Bulk Acoustic Wave (BAW) filter, a Film Bulk Acoustic Resonator (FBAR) filter), a Power Amplifier (PA), a Low Noise Amplifier (LNA), and the like, and the structure is complex. The WiFi6 technology has a high demand for the rf front end module, the existing design structure of the rf front end module cannot well meet the communication demand of the WiFi6, the data throughput and the network capacity are limited, and the signal quality is not ideal.
As shown in fig. 1, in the present embodiment, the first rf front-end circuit 1 includes a 2.4G rf front-end module 11 and a 5G rf front-end module 12 connected to the wlan chip 5;
the second radio frequency front terminal circuit 2 comprises a 2.4G radio frequency front end module 21 and a 5G radio frequency front end module 22 which are connected with the wireless local area network chip 5, and a GPS signal input/output end 23 which is used for being connected with the GPS radio frequency front end module;
the third radio frequency front terminal circuit 3 comprises a 2.4G-5G radio frequency front end module 31 connected with the wireless local area network chip 5;
the fourth rf front-end circuit 4 includes a 2.4G-5G rf front-end module 41 connected to the wlan chip 5 and a GPS signal input/output terminal 42 for connecting to the GPS rf front-end module.
In application, the 2.4G rf front-end module is a circuit or a chip with antenna tuning and 2.4G signal transceiving functions, the 5G rf front-end module is a circuit or a chip with antenna tuning and 5G signal transceiving functions, the GPS rf front-end module is a circuit or a chip with antenna tuning and GPS signal transceiving functions, and the 2.4G-5G rf front-end module is a circuit or a chip with antenna tuning, 2.4G signal transceiving and 5G signal transceiving functions.
In the application, when M2 and M4 are 0, the rf front-end circuit can only support 2.4G and 5G bands and 8 × 8 MIMO. When M2 or M4 is not 0, the rf front-end circuit can be connected to the GPS rf front-end module on the basis of supporting 2.4G and 5G bands and 8 × 8MIMO, and can meet various rf front-end circuit scheme requirements of WiFi 6.
In application, the GPS rf front-end module of a suitable operating frequency band, for example, any one of the L1 frequency band, the L2 frequency band, the L3 frequency band, or the L5 frequency band, may be selected according to actual needs.
In one embodiment, the operating frequency band of the GPS rf front-end module is an L1 frequency band or an L5 frequency band.
In application, the frequency range of the L1 frequency band is 1575.42 +/-1.023 MHz, the frequency range of the L2 frequency band is 1227.60 +/-1.023 MHz, and the frequency range of the L5 frequency band is 1176.45 +/-1.023 MHz.
In one embodiment, the M1 first rf front-end circuits, the M2 second rf front-end circuits, the M3 third rf front-end circuits, and the M4 fourth rf front-end circuits are integrally disposed or combined to be disposed in one body.
In application, each rf front-end circuit included in the rf front-end circuit may be integrated or combined together to form a compact module, which is then connected to other devices such as a wireless lan chip.
In this embodiment, by providing a radio frequency front end circuit including 8 radio frequency front end circuits and a wireless local area network chip, a 2.4G radio frequency front end module and a 5G radio frequency front end module, or a 2.4G-5G radio frequency front end module are arranged in the radio frequency front end circuit, so that 2.4G and 5G frequency bands and 8 × 8MIMO can be supported, and data throughput and network capacity can be effectively improved; the GPS signal input and output end connected with the GPS radio frequency front end module is arranged on the radio frequency front end circuit, so that various radio frequency front end circuit scheme requirements of WiFi6 can be met.
Example two
As shown in fig. 2, in the present embodiment, the first rf front-end circuit 1 further includes a first coupler 13, a second coupler 14, a first filter 15 and a second filter 16.
In application, the first filter and the second filter can be any type of filter according to actual needs, for example, a surface acoustic wave filter.
As shown in fig. 2, in this embodiment, an input/output end of the 2.4G rf front-end module 11 is connected to a first input/output end of the first coupler 13, a second input/output end of the first coupler 13 is connected to a first input/output end of the first filter 15, a second input/output end of the first filter 15 is a 2.4G signal input/output end of the first rf front-end circuit 1, and a 2.4G signal input/output end is connected to the wlan chip 5;
the input/output end of the 5G rf front-end module 12 is connected to the first input/output end of the second coupler 14, the second input/output end of the second coupler 14 is connected to the first input/output end of the second filter 16, the second input/output end of the second filter 16 is the 5G signal input/output end of the first rf front-end circuit 1, and the 5G signal input/output end is connected to the wlan chip 5;
a third input/output end of the first coupler 13 is connected to a third input/output end of the second coupler 14, a fourth input/output end of the first coupler 13 or a fourth input/output end of the second coupler 14 is a power detection end of the first rf front-end circuit 1, and the power detection end is connected to the wlan chip 5.
Fig. 2 exemplarily shows that the fourth input/output terminal of the first coupler 13 is the power detection terminal of the first rf front-end terminal circuit 1.
In this embodiment, the first Coupler (Coupler) is configured to couple a 2.4G signal transmitted by the wlan chip to the 2.4G rf front-end module, and couple a 2.4G signal received by the 2.4G rf front-end module to the wlan chip;
the second coupler is used for coupling the 5G signal transmitted by the wireless local area network chip to the 5G radio frequency front-end module and coupling the 5G signal received by the 5G radio frequency front-end module to the wireless local area network chip;
the first filter is used for filtering 2.4G signals transmitted by the wireless local area network chip and 2.4G signals received by the 2.4G radio frequency front end module;
the second filter is used for filtering the 5G signal transmitted by the wireless local area network chip and the 5G signal received by the 5G radio frequency front end module;
the first coupler is also used for coupling the 2.4G signals received and transmitted by the 2.4G radio frequency front end module to the wireless local area network chip, so that the wireless local area network chip can detect the power of the 2.4G signals received and transmitted by the 2.4G radio frequency front end module, and the power of the 2.4G signals transmitted by the 2.4G radio frequency front end module can be conveniently subjected to feedback regulation;
the second coupler is further configured to couple the 5G signal received and transmitted by the 5G rf front-end module to the wlan chip, so that the wlan chip can perform power detection on the 5G signal received and transmitted by the 5G rf front-end module, and thus, the power of the 5G signal transmitted by the 5G rf front-end module is conveniently subjected to feedback adjustment.
Fig. 2 schematically shows a structure of the rf front-end circuit 100 when M1 is equal to 8.
For convenience of illustration in fig. 2, the wireless lan chip 5 is illustrated as two parts, respectively denoted 51 and 52; in application, the wireless lan chip 5 may be configured as an independent integrated circuit chip according to actual needs, or may be configured to include two or more parts.
The embodiment of the application provides a radio frequency front end circuit comprising 8 first radio frequency front end circuits and a wireless local area network chip, and 8 2.4G radio frequency front end modules and 8 5G radio frequency front end modules are arranged in the radio frequency front end circuit, so that 2.4G and 5G frequency bands and 8 × 8MIMO can be supported, and data throughput and network capacity can be effectively improved.
EXAMPLE III
As shown in fig. 3, in the present embodiment, the second rf front-end circuit 2 in the first embodiment further includes a first coupler 24, a second coupler 25, a combiner 26, and a first filter 27.
In application, the first filter can be any type of filter according to actual needs, for example, a surface acoustic wave filter.
As shown in fig. 3, in this embodiment, an input/output end of the 2.4G rf front-end module 21 is connected to a first input/output end of the first coupler 24, a second input/output end of the first coupler 24 is connected to a first input/output end of the combiner 26, a second input/output end of the combiner 26 is a 2.4G signal input/output end of the second rf front-end circuit 2, and a 2.4G signal input/output end is connected to the wlan chip 5;
the input/output end of the 5G rf front-end module 22 is connected to the first input/output end of the second coupler 25, the second input/output end of the second coupler 25 is connected to the first input/output end of the first filter 27, the second input/output end of the first filter 27 is the 5G signal input/output end of the second rf front-end circuit 2, and the 5G signal input/output end is connected to the wlan chip 5;
a third input/output end of the combiner 26 is a GPS signal input/output end 23 of the second radio frequency front terminal circuit 2;
a third input/output end of the first coupler 24 is connected to a third input/output end of the second coupler 25, a fourth input/output end of the first coupler 24 or a fourth input/output end of the second coupler 25 is a power detection end of the second rf front-end circuit 2, and the power detection end is connected to the wlan chip 5.
In this embodiment, the first coupler is configured to couple a 2.4G signal transmitted by the wlan chip to the 2.4G rf front-end module, and couple a 2.4G signal received by the 2.4G rf front-end module to the wlan chip;
the second coupler is used for coupling the 5G signal transmitted by the wireless local area network chip to the 5G radio frequency front-end module and coupling the 5G signal received by the 5G radio frequency front-end module to the wireless local area network chip;
the combiner is used for combining the 2.4G signal received by the 2.4G radio frequency front end module and the GPS signal received by the GPS radio frequency front end module and then sending the combined signals to the wireless local area network chip;
the first filter is used for filtering 5G signals transmitted by the wireless local area network chip and 5G signals received by the 5G radio frequency front end module;
the first coupler and the second coupler are further used for coupling the 2.4G signals received and transmitted by the 2.4G radio frequency front end module, the GPS signals received and transmitted by the GPS radio frequency front end module and the 5G signals received and transmitted by the 5G radio frequency front end module to the wireless local area network chip, so that the wireless local area network chip can detect the power of the 2.4G signals received and transmitted by the 2.4G radio frequency front end module, the GPS signals received and transmitted by the GPS radio frequency front end module and the 5G signals received and transmitted by the 5G radio frequency front end module, and the power of the 2.4G signals transmitted by the 2.4G radio frequency front end module, the GPS signals transmitted by the GPS radio frequency front end module and the 5G signals transmitted by the 5G radio frequency front end module can be conveniently fed back and adjusted.
As shown in fig. 3, a schematic structural diagram of the rf front-end circuit 100 is exemplarily shown when M1 is 6 and M2 is 2; the 2 second rf front-end circuits 2 include a first second rf front-end circuit 201 and a second rf front-end circuit 202, the GPS signal input/output end 23 of the first second rf front-end circuit 201 is indicated as 231, the GPS signal input/output end 231 is used for inputting and outputting GPS signals in the L1 frequency band, the GPS signal input/output end 23 of the second rf front-end circuit 202 is indicated as 232, and the GPS signal input/output end 232 is used for inputting and outputting GPS signals in the L5 frequency band;
in the first second rf front-end circuit 201, the fourth input/output end of the second coupler 25 is the power detection end of the first second rf front-end circuit 201;
in the second rf front-end circuit 202, the fourth input/output terminal of the second coupler 25 is the power detection terminal of the second rf front-end circuit 202.
As shown in fig. 4, in the present embodiment, the second rf front-end terminal circuit 2 further includes a second filter 28.
In application, the second filter can be any type of filter according to actual needs, for example, a surface acoustic wave filter.
As shown in fig. 4, in the present embodiment, the second input/output end of the combiner 26 is connected to the first input/output end of the second filter 28, and the second input/output end of the second filter 28 is the 2.4G signal input/output end of the second rf front-end circuit 2.
As shown in fig. 4, a schematic structural diagram of the rf front-end circuit 100 is exemplarily shown when M1 is 6 and M2 is 2; the 2 second rf front-end circuits 2 include a third second rf front-end circuit 203 and a fourth second rf front-end circuit 204, the GPS signal input/output end 23 of the third second rf front-end circuit 203 is indicated as 231, the GPS signal input/output end 231 is used for inputting and outputting a GPS signal in the L1 frequency band, the GPS signal input/output end 23 of the fourth second rf front-end circuit 204 is indicated as 232, and the GPS signal input/output end 232 is used for inputting and outputting a GPS signal in the L5 frequency band;
in the third second rf front-end circuit 203, the fourth input/output end of the second coupler 25 is a power detection end of the third second rf front-end circuit 203;
in the fourth rf front-end circuit 204, the fourth input/output terminal of the second coupler 25 is the power detection terminal of the fourth rf front-end circuit 204.
For convenience of illustration in fig. 3 and 4, the wireless lan chip 5 is illustrated as two parts, respectively designated 51 and 52; in application, the wireless lan chip 5 may be configured as an independent integrated circuit chip according to actual needs, or may be configured to include two or more parts.
The embodiment of the application provides a radio frequency front end circuit including 6 first radio frequency front end circuit, 2 second radio frequency front end circuit and wireless local area network chip, through set up 8 2.4G radio frequency front end modules, 8 5G radio frequency front end modules and 2 GPS radio frequency front end modules in the radio frequency front end circuit, can support 2.4G and 5G frequency channels and 8 x 8MIMO, can effectively improve data throughput and network capacity, can also satisfy the various radio frequency front end circuit scheme demands of wiFi 6.
Example four
As shown in fig. 5, in the present embodiment, the second rf front-end circuit 2 in the first embodiment further includes a first coupler 24, a second coupler 25, a combiner 26, and a first filter 27.
In application, the first filter can be any type of filter according to actual needs, for example, a surface acoustic wave filter.
As shown in fig. 5, in this embodiment, the input/output end of the 2.4G rf front-end module 21 is connected to the first input/output end of the first coupler 24, the second input/output end of the first coupler 24 is connected to the first input/output end of the first filter 27, the second input/output end of the first filter 27 is the 2.4G signal input/output end of the second rf front-end circuit 2, and the 2.4G signal input/output end is connected to the wlan chip 5;
the input/output end of the 5G radio frequency front-end module 22 is connected with the first input/output end of the second coupler 25, the second input/output end of the second coupler 25 is connected with the first input/output end of the combiner 26, the second input/output end of the combiner 26 is the 5G signal input/output end of the second radio frequency front-end terminal circuit 2, and the 5G signal input/output end is connected with the wireless local area network chip 5;
a third input/output end of the combiner 26 is a GPS signal input/output end 23 of the second radio frequency front terminal circuit 3;
a third input/output end of the first coupler 24 is connected to a third input/output end of the second coupler 25, a fourth input/output end of the first coupler 24 or a fourth input/output end of the second coupler 25 is a power detection end of the second rf front-end circuit, and the power detection end is connected to the wlan chip 5.
In this embodiment, the first coupler is configured to couple a 2.4G signal transmitted by the wlan chip to the 2.4G rf front-end module, and couple a 2.4G signal received by the 2.4G rf front-end module to the wlan chip;
the second coupler is used for coupling the 5G signal transmitted by the wireless local area network chip to the 5G radio frequency front-end module and coupling the 5G signal received by the 5G radio frequency front-end module to the wireless local area network chip;
the combiner is used for combining the 5G signal received by the 5G radio frequency front end module and the GPS signal received by the GPS radio frequency front end module and then sending the combined signal to the wireless local area network chip;
the first filter is used for filtering 2.4G signals transmitted by the wireless local area network chip and 2.4G signals received by the 2.4G radio frequency front end module;
the first coupler and the second coupler are further used for coupling the 2.4G signals received and transmitted by the 2.4G radio frequency front end module, the GPS signals received and transmitted by the GPS radio frequency front end module and the 5G signals received and transmitted by the 5G radio frequency front end module to the wireless local area network chip, so that the wireless local area network chip can detect the power of the 2.4G signals received and transmitted by the 2.4G radio frequency front end module, the GPS signals received and transmitted by the GPS radio frequency front end module and the 5G signals received and transmitted by the 5G radio frequency front end module, and the power of the 2.4G signals transmitted by the 2.4G radio frequency front end module, the GPS signals transmitted by the GPS radio frequency front end module and the 5G signals transmitted by the 5G radio frequency front end module can be conveniently fed back and adjusted.
As shown in fig. 5, a schematic structural diagram of the rf front-end circuit 100 is exemplarily shown when M1 is 6 and M2 is 2; the 2 second rf front-end circuit 2 includes a fifth rf front-end circuit 205 and a sixth rf front-end circuit 206, the GPS signal input/output terminal 23 of the fifth rf front-end circuit 205 is indicated as 231, the GPS signal input/output terminal 231 is used for inputting and outputting a GPS signal in the L1 frequency band, the GPS signal input/output terminal 23 of the sixth rf front-end circuit 206 is indicated as 232, and the GPS signal input/output terminal 232 is used for inputting and outputting a GPS signal in the L5 frequency band;
in the fifth second rf front-end circuit 205, the fourth input/output end of the second coupler 25 is the power detection end of the fifth second rf front-end circuit 205;
in the sixth second rf front-end circuit 206, the fourth input/output terminal of the first coupler 24 is the power detection terminal of the sixth second rf front-end circuit 206.
For convenience of illustration in fig. 5, the wireless lan chip 5 is illustrated as two parts, respectively denoted 51 and 52; in application, the wireless lan chip 5 may be configured as an independent integrated circuit chip according to actual needs, or may be configured to include two or more parts.
As shown in fig. 6, in the present embodiment, the second rf front-end terminal circuit 2 further includes a second filter 28.
In application, the second filter can be any type of filter according to actual needs, for example, a surface acoustic wave filter.
As shown in fig. 6, in the present embodiment, the second input/output end of the combiner 26 is connected to the first input/output end of the second filter 28, and the second input/output end of the second filter 28 is the 5G signal input/output end of the second rf front-end circuit 2.
As shown in fig. 6, a schematic structural diagram of the rf front-end circuit 100 is exemplarily shown when M1 is 6 and M2 is 2; the 2 second rf front-end circuit 2 includes a seventh second rf front-end circuit 207 and an eighth second rf front-end circuit 208, the GPS signal input/output end 23 of the seventh second rf front-end circuit 207 is indicated as 231, the GPS signal input/output end 231 is used for inputting and outputting a GPS signal in the L1 frequency band, the GPS signal input/output end 23 of the eighth second rf front-end circuit 208 is indicated as 232, and the GPS signal input/output end 232 is used for inputting and outputting a GPS signal in the L5 frequency band;
in the seventh second rf front-end circuit 207, the fourth input/output end of the second coupler 25 is the power detection end of the seventh second rf front-end circuit 207;
in the eighth second rf front-end circuit 208, the fourth input/output terminal of the first coupler 24 is the power detection terminal of the eighth second rf front-end circuit 208.
In application, any number of the first to eighth second rf front-end circuits, the first rf front-end circuit, the third rf front-end circuit and the fourth rf front-end circuit may be selected according to actual needs to form the rf front-end circuit, as long as the number of all the rf front-end circuits included in the rf front-end circuit is ensured to be 8.
As shown in fig. 7, a schematic structural diagram of the rf front-end circuit 100 is exemplarily shown when M1 is 6 and M2 is 2; wherein, the 2 second rf front-end circuit 2 includes a fifth second rf front-end circuit 205 and a second rf front-end circuit 202;
in the fifth second rf front-end circuit 205, the fourth input/output end of the second coupler 25 is the power detection end of the fifth second rf front-end circuit 205;
in the second rf front-end circuit 202, the fourth input/output terminal of the second coupler 25 is the power detection terminal of the second rf front-end circuit 202.
As shown in fig. 8, a schematic structural diagram of the rf front-end circuit 100 is exemplarily shown when M1 is 6 and M2 is 2; wherein, the 2 second rf front-end circuit 2 includes a seventh second rf front-end circuit 207 and a fourth second rf front-end circuit 204;
in the seventh second rf front-end circuit 207, the fourth input/output end of the second coupler 25 is the power detection end of the seventh second rf front-end circuit 207;
in the fourth rf front-end circuit 204, the fourth input/output terminal of the first coupler 24 is the power detection terminal of the fourth rf front-end circuit 204.
As shown in fig. 9, a schematic structural diagram of the rf front-end circuit 100 is exemplarily shown when M1 is 6 and M2 is 2; wherein, the 2 second rf front-end circuit 2 includes a seventh second rf front-end circuit 207 and a first second rf front-end circuit 201;
in the seventh second rf front-end circuit 207, the fourth input/output end of the second coupler 25 is the power detection end of the seventh second rf front-end circuit 207;
in the first and second rf front-end circuit 201, the fourth input/output terminal of the second coupler 25 is the power detection terminal of the first and second rf front-end circuit 201.
As shown in fig. 10, a schematic structural diagram of the rf front-end circuit 100 is exemplarily shown when M1 is 6 and M2 is 2; the 2 second rf front-end circuits 2 include a fifth type of second rf front-end circuit 205 and a fourth type of second rf front-end circuit 204;
in the fifth second rf front-end circuit 205, the fourth input/output end of the second coupler 25 is the power detection end of the fifth second rf front-end circuit 205;
in the fourth rf front-end circuit 204, the fourth input/output terminal of the second coupler 25 is the power detection terminal of the fourth rf front-end circuit 204.
For convenience of illustration in fig. 5 to 10, the wireless lan chip 5 is illustrated as two parts, which are respectively denoted as 51 and 52; in application, the wireless lan chip 5 may be configured as an independent integrated circuit chip according to actual needs, or may be configured to include two or more parts.
The embodiment of the application provides a radio frequency front end circuit including 6 first radio frequency front end circuit, 2 second radio frequency front end circuit and wireless local area network chip, through set up 8 2.4G radio frequency front end modules, 8 5G radio frequency front end modules and 2 GPS radio frequency front end modules in the radio frequency front end circuit, can support 2.4G and 5G frequency channels and 8 x 8MIMO, can effectively improve data throughput and network capacity, can also satisfy the various radio frequency front end circuit scheme demands of wiFi 6.
EXAMPLE five
As shown in fig. 11, in the present embodiment, the third rf front-end circuit 3 further includes a coupler 32, a combiner 33, and a first filter 34.
In application, the first filter and the second filter can be any type of filter according to actual needs, for example, a surface acoustic wave filter.
As shown in fig. 11, in the present embodiment, the input/output terminal of the 2.4G-5G rf front-end module 31 is connected to the first input/output terminal of the coupler 32;
a second input/output end of the coupler 32 is connected with a first input/output end of the combiner 33, a third input/output end of the coupler 32 is a power detection end of the third radio frequency front terminal circuit 3, and the power detection end is connected with the wireless local area network chip 5;
a second input/output end of the combiner 33 is connected with a first input/output end of the first filter 34, a third input/output end of the combiner 33 is a 5G signal input/output end of the third radio frequency front terminal circuit 3, and the 5G signal input/output end is connected with the wireless local area network chip 5;
the second input/output end of the first filter 34 is the 2.4G signal input/output end of the third rf front-end circuit 3, and the 2.4G signal input/output end is connected to the wlan chip 5.
In this embodiment, the coupler is configured to couple a 2.4G signal and a 5G signal transmitted by the wlan chip to the 2.4G-5G rf front-end module, and couple a 2.4G signal and a 5G signal received by the 2.4G-5G rf front-end module to the wlan chip;
the combiner is used for combining the 2.4G signal and the 5G signal transmitted by the wireless local area network chip and then transmitting the combined signals to the 2.4G-5G radio frequency front-end module;
the first filter is used for filtering 2.4G signals transmitted by the wireless local area network chip and 2.4G signals received by the 2.4G radio frequency front end module;
the coupler is also used for coupling the 2.4G signals and the 5G signals received and transmitted by the 2.4G-5G radio frequency front end module to the wireless local area network chip, so that the wireless local area network chip can perform power detection on the 2.4G signals and the 5G signals received and transmitted by the 2.4G-5G radio frequency front end module, and the power of the 2.4G signals and the 5G signals transmitted by the 2.4G-5G radio frequency front end module is convenient to perform feedback regulation.
Fig. 11 exemplarily shows a structural schematic diagram of the rf front-end circuit 100 when M3 is equal to 8; the rf front-end circuit 100 includes 8 first third rf front-end circuits 301.
As shown in fig. 12, in the present embodiment, the third rf front-end terminal circuit 3 further includes a second filter 35.
In application, the second filter can be any type of filter according to actual needs, for example, a surface acoustic wave filter.
As shown in fig. 12, in the present embodiment, the third input/output terminal of the combiner 34 is connected to the first input/output terminal of the second filter 35, and the second input/output terminal of the second filter 35 is the 5G signal input/output terminal of the third rf front-end circuit 3.
Fig. 12 schematically shows a structure of the rf front-end circuit 100 when M3 is equal to 8; the rf front-end circuit 100 includes 8 first third rf front-end circuits 302.
The embodiment of the application provides a radio frequency front-end circuit comprising 8 third radio frequency front-end circuits and a wireless local area network chip, and 8 2.4G-5G radio frequency front-end modules are arranged in the radio frequency front-end circuit, so that 2.4G and 5G frequency bands and 8 × 8MIMO can be supported, and data throughput and network capacity can be effectively improved.
EXAMPLE six
As shown in fig. 13, in the present embodiment, the fourth rf front-end circuit further includes a coupler 43, a combiner 44 and a first filter 45.
In application, the first filter can be any type of filter according to actual needs, for example, a surface acoustic wave filter.
As shown in fig. 13, in the present embodiment, the input/output terminal of the 2.4G-5G rf front-end module 41 is connected to the first input/output terminal of the coupler 43;
a second input/output end of the coupler 43 is connected with a first input/output end of the combiner 44, a third input/output end of the coupler 43 is a power detection end of the fourth rf front-end circuit 4, and the power detection end is connected with the wlan chip 5;
a second input/output end of the combiner 44 is connected to a first input/output end of the first filter 45, a third input/output end of the combiner 44 is a 5G signal input/output end of the fourth rf front-end circuit 4, the 5G signal input/output end is connected to the wireless lan chip 5, and a fourth input/output end of the combiner 44 is a GPS signal input/output end 42 of the fourth rf front-end circuit 4;
a second input/output end of the first filter 45 is a 2.4G signal input/output end of the fourth rf front-end circuit 4, and the 2.4G signal input/output end is connected to the wlan chip 5.
In this embodiment, the coupler is configured to couple a 2.4G signal and a 5G signal transmitted by the wlan chip to the 2.4G-5G rf front-end module, and couple a 2.4G signal and a 5G signal received by the 2.4G-5G rf front-end module to the wlan chip;
the combiner is used for combining the 2.4G signal and the 5G signal transmitted by the wireless local area network chip and then transmitting the combined signals to the 2.4G-5G radio frequency front-end module;
the first filter is used for filtering 2.4G signals transmitted by the wireless local area network chip and 2.4G signals received by the 2.4G radio frequency front end module;
the combiner is also used for combining the 2.4G signal and the 5G signal transmitted and received by the wireless local area network chip and the GPS signal transmitted and received by the GPS radio frequency front-end module and then transmitting the combined signals to the coupler;
the coupler is also used for coupling the 2.4G signal and the 5G signal received and transmitted by the 2.4G-5G radio frequency front end module and the GPS signal transmitted and received by the GPS radio frequency front end module to the wireless local area network chip, so that the wireless local area network chip can detect the power of the 2.4G signal and the 5G signal received and transmitted by the 2.4G-5G radio frequency front end module and the GPS signal transmitted and received by the GPS radio frequency front end module, and the 2.4G signal and the 5G signal transmitted by the 2.4G-5G radio frequency front end module and the GPS signal power transmitted by the GPS radio frequency front end module are conveniently fed back and adjusted.
Fig. 13 exemplarily shows a schematic structure of the rf front-end circuit 100 when M3 is 6 and M4 is 2; the rf front-end circuit 100 includes 6 first third rf front- end circuits 301, 1 first fourth rf front- end circuit 401, and 1 second fourth rf front-end circuit 402;
the GPS signal input/output terminal 42 of the first fourth rf front-end circuit 401 is indicated by 421, the GPS signal input/output terminal 421 is used for inputting and outputting a GPS signal in the L1 frequency band, the GPS signal input/output terminal 42 of the second fourth rf front-end circuit 402 is indicated by 422, and the GPS signal input/output terminal 422 is used for inputting and outputting a GPS signal in the L5 frequency band.
As shown in fig. 14, in the present embodiment, the fourth rf front-end terminal circuit 4 further includes a second filter 46.
In application, the second filter can be any type of filter according to actual needs, for example, a surface acoustic wave filter.
As shown in fig. 14, in the present embodiment, the third input/output end of the combiner 44 is connected to the first input/output end of the second filter 46, and the second input/output end of the second filter 46 is the 5G signal input/output end of the fourth rf front-end circuit 4.
Fig. 14 exemplarily shows a schematic structure of the rf front-end circuit 100 when M3 is 6 and M4 is 2; the rf front-end circuit 100 includes 6 second third rf front- end circuits 302, 1 third fourth rf front-end circuit 403, and 1 fourth rf front-end circuit 404;
the GPS signal input/output terminal 42 of the third fourth rf front-end circuit 403 is indicated at 423, the GPS signal input/output terminal 423 is used for inputting and outputting a GPS signal in the L1 frequency band, the GPS signal input/output terminal 42 of the fourth rf front-end circuit 404 is indicated at 424, and the GPS signal input/output terminal 424 is used for inputting and outputting a GPS signal in the L5 frequency band.
The embodiment provides a radio frequency front end circuit comprising 6 third radio frequency front end circuits, 2 fourth radio frequency front end circuits and a wireless local area network chip, and by arranging 8 2.4G-5G radio frequency front end modules and 2 GPS radio frequency front end modules in the radio frequency front end circuit, 2.4G and 5G frequency bands and 8 × 8MIMO can be supported, data throughput and network capacity can be effectively improved, and various radio frequency front end circuit scheme requirements of WiFi6 can be met.
EXAMPLE seven
In this embodiment, the rf front-end circuit 100 in any one of the first to sixth embodiments further includes M5 rf front-end modules, at most one rf front-end module is connected between each 2.4G signal input/output end and the wlan chip, and at most one rf front-end module is connected between each 5G signal input/output end and the wlan chip;
wherein, M5 is more than or equal to 1 and less than or equal to 16, and M5 is a natural number.
In application, a radio frequency front-end module or no radio frequency front-end module may be connected between each 2.4G signal input/output end or each 5G signal input/output end and the wireless local area network chip. The number of the rf front-end modules that the rf front-end circuit includes may be set according to actual needs, as long as it is not more than 16. The rf front-end module in this embodiment refers to the existing rf front-end module described in the first embodiment, and the rf front-end module may only include two power amplifiers, and the two power amplifiers are respectively connected between the 2.4G signal input/output terminal or the 5G signal input/output terminal and the wlan chip.
On the basis of fig. 1, fig. 15 exemplarily shows a case where one rf front-end module 6 is connected between each 2.4G signal input/output terminal and the wlan chip 5 when M5 is equal to 8;
on the basis of fig. 1, fig. 16 exemplarily shows a case where one rf front-end module 6 is connected between each 5G signal input/output terminal and the wlan chip 5 when M5 is equal to 8;
on the basis of fig. 1, fig. 17 exemplarily shows a case where one rf front-end module 6 is connected between each 2.4G signal input/output terminal and each 5G signal input/output terminal and the wlan chip 5 when M5 is 16;
each rf front-end module 6 includes an input/output terminal for connecting with a 2.4G signal input/output terminal or a 5G signal input/output terminal, an input terminal for connecting with the wlan chip 5, and an output terminal for connecting with the wlan chip 5.
In this embodiment, the radio frequency front-end circuit is provided with the radio frequency front-end module between the 2.4G signal input/output end or the 5G signal input/output end of any radio frequency front-end terminal circuit of the radio frequency front-end circuit and the wireless local area network chip, so that the radio frequency front-end circuit has the function of the existing video front-end module. It should be understood that circuits, modules or devices with the same name and different reference numbers in all embodiments of the present application are all devices with the same function and different structures. Those skilled in the art can freely combine the various types of first rf front-end circuit, second rf front-end circuit, third rf front-end circuit and fourth rf front-end circuit mentioned in all embodiments of the present application according to actual needs to form an rf front-end circuit including any number of channels.
In application, the radio frequency front-end circuit provided by the embodiment of the application can be applied to wireless communication devices with wireless communication functions, such as mobile phones, tablet computers, notebook computers, smart bands, robots, self-service terminals, cloud servers, routers, gateways and the like, and is particularly suitable for wireless communication devices based on a WiFi6 technology and supporting 8 × 8 MIMO.
The above-mentioned embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the same; 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 solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the spirit and scope of the embodiments of the present application and are intended to be included within the scope of the present application.
Claims (13)
1. A radio frequency front end circuit is characterized by comprising M1 first radio frequency front end circuit, M2 second radio frequency front end circuit, M3 third radio frequency front end circuit, M4 fourth radio frequency front end circuit and a wireless local area network chip;
the first radio frequency front terminal circuit comprises a 2.4G radio frequency front end module and a 5G radio frequency front end module which are connected with the wireless local area network chip;
the second radio frequency front terminal circuit comprises a 2.4G radio frequency front end module, a 5G radio frequency front end module and a GPS signal input/output end, wherein the 2.4G radio frequency front end module and the 5G radio frequency front end module are connected with the wireless local area network chip, and the GPS signal input/output end is used for being connected with the GPS radio frequency front end module;
the third radio frequency front terminal circuit comprises a 2.4G-5G radio frequency front end module connected with the wireless local area network chip;
the fourth radio frequency front terminal circuit comprises a 2.4G-5G radio frequency front end module connected with the wireless local area network chip and a GPS signal input/output end connected with the GPS radio frequency front end module;
the 2.4G rf front-end module is a circuit or a chip having antenna tuning and 2.4G signal transceiving functions, the 5G rf front-end module is a circuit or a chip having antenna tuning and 5G signal transceiving functions, the GPS rf front-end module is a circuit or a chip having antenna tuning and GPS signal transceiving functions, the 2.4G-5G rf front-end module is a circuit or a chip having antenna tuning, 2.4G signal transceiving, and 5G signal transceiving functions, M1+ M2+ M3+ M4 is 8, and M1, M2, M3, and M4 are all natural numbers.
2. The rf front-end circuit of claim 1, wherein the first rf front-end circuit further comprises a first coupler, a second coupler, a first filter, and a second filter;
an input/output end of the 2.4G radio frequency front-end module is connected with a first input/output end of the first coupler, a second input/output end of the first coupler is connected with a first input/output end of the first filter, a second input/output end of the first filter is a 2.4G signal input/output end of the first radio frequency front-end terminal circuit, and the 2.4G signal input/output end is connected with the wireless local area network chip;
an input/output end of the 5G radio frequency front-end module is connected with a first input/output end of the second coupler, a second input/output end of the second coupler is connected with a first input/output end of the second filter, a second input/output end of the second filter is a 5G signal input/output end of the first radio frequency front-end terminal circuit, and the 5G signal input/output end is connected with the wireless local area network chip;
and a third input/output end of the first coupler is connected with a third input/output end of the second coupler, a fourth input/output end of the first coupler or a fourth input/output end of the second coupler is a power detection end of the first radio frequency front terminal circuit, and the power detection end is connected with the wireless local area network chip.
3. The rf front-end circuit of claim 1, wherein the second rf front-end circuit further comprises a first coupler, a second coupler, a combiner, and a first filter;
an input/output end of the 2.4G radio frequency front-end module is connected with a first input/output end of the first coupler, a second input/output end of the first coupler is connected with a first input/output end of the combiner, a second input/output end of the combiner is a 2.4G signal input/output end of the second radio frequency front-end terminal circuit, and the 2.4G signal input/output end is connected with the wireless local area network chip;
the input/output end of the 5G radio frequency front-end module is connected with the first input/output end of the second coupler, the second input/output end of the second coupler is connected with the first input/output end of the first filter, the second input/output end of the first filter is the 5G signal input/output end of the second radio frequency front-end terminal circuit, and the 5G signal input/output end is connected with the wireless local area network chip;
a third input/output end of the combiner is a GPS signal input/output end of the second radio frequency front terminal circuit;
and a third input/output end of the first coupler is connected with a third input/output end of the second coupler, a fourth input/output end of the first coupler or a fourth input/output end of the second coupler is a power detection end of the second radio frequency front terminal circuit, and the power detection end is connected with the wireless local area network chip.
4. The rf front-end circuit of claim 3, wherein the second rf front-end circuit further comprises a second filter;
and a second input/output end of the combiner is connected with a first input/output end of the second filter, and a second input/output end of the second filter is a 2.4G signal input/output end of the second radio frequency front terminal circuit.
5. The rf front-end circuit of claim 1, wherein the second rf front-end circuit further comprises a first coupler, a second coupler, a combiner, and a first filter;
an input/output end of the 2.4G radio frequency front-end module is connected with a first input/output end of the first coupler, a second input/output end of the first coupler is connected with a first input/output end of the first filter, a second input/output end of the first filter is a 2.4G signal input/output end of the second radio frequency front-end terminal circuit, and the 2.4G signal input/output end is connected with the wireless local area network chip;
the input and output end of the 5G radio frequency front-end module is connected with the first input and output end of the second coupler, the second input and output end of the second coupler is connected with the first input and output end of the combiner, the second input and output end of the combiner is the 5G signal input and output end of the second radio frequency front-end terminal circuit, and the 5G signal input and output end is connected with the wireless local area network chip;
a third input/output end of the combiner is a GPS signal input/output end of the second radio frequency front terminal circuit;
and a third input/output end of the first coupler is connected with a third input/output end of the second coupler, a fourth input/output end of the first coupler or a fourth input/output end of the second coupler is a power detection end of the second radio frequency front terminal circuit, and the power detection end is connected with the wireless local area network chip.
6. The radio frequency front-end circuit of claim 5, wherein the second radio frequency front-end circuit further comprises a second filter;
and a second input/output end of the combiner is connected with a first input/output end of the second filter, and a second input/output end of the second filter is a 5G signal input/output end of the second radio frequency front terminal circuit.
7. The rf front-end circuit of claim 1, wherein the third rf front-end circuit further comprises a coupler, a combiner, and a first filter;
the input and output ends of the 2.4G-5G radio frequency front-end module are connected with the first input and output ends of the coupler;
a second input/output end of the coupler is connected with a first input/output end of the combiner, a third input/output end of the coupler is a power detection end of the third radio frequency front terminal circuit, and the power detection end is connected with the wireless local area network chip;
a second input/output end of the combiner is connected with a first input/output end of the first filter, a third input/output end of the combiner is a 5G signal input/output end of the third radio frequency front terminal circuit, and the 5G signal input/output end is connected with the wireless local area network chip;
and a second input/output end of the first filter is a 2.4G signal input/output end of the third radio frequency front terminal circuit, and the 2.4G signal input/output end is connected with the wireless local area network chip.
8. The radio frequency front-end circuit of claim 7, wherein the third radio frequency front-end circuit further comprises a second filter;
and a third input/output end of the combiner is connected with a first input/output end of the second filter, and a second input/output end of the second filter is a 5G signal input/output end of the third radio frequency front terminal circuit.
9. The rf front-end circuit of claim 1, wherein the fourth rf front-end circuit further comprises a coupler, a combiner, and a first filter;
the input and output ends of the 2.4G-5G radio frequency front-end module are connected with the first input and output ends of the coupler;
a second input/output end of the coupler is connected with a first input/output end of the combiner, a third input/output end of the coupler is a power detection end of the fourth radio frequency front terminal circuit, and the power detection end is connected with the wireless local area network chip;
a second input/output end of the combiner is connected with a first input/output end of the first filter, a third input/output end of the combiner is a 5G signal input/output end of the fourth radio frequency front end terminal circuit, the 5G signal input/output end is connected with the wireless local area network chip, and a fourth input/output end of the combiner is a GPS signal input/output end of the fourth radio frequency front end terminal circuit;
and a second input/output end of the first filter is a 2.4G signal input/output end of the fourth radio frequency front terminal circuit, and the 2.4G signal input/output end is connected with the wireless local area network chip.
10. The rf front-end circuit of claim 9, wherein the fourth rf front-end circuit further comprises a second filter;
and a third input/output end of the combiner is connected with a first input/output end of the second filter, and a second input/output end of the second filter is a 5G signal input/output end of the fourth radio frequency front terminal circuit.
11. The RF front-end circuit of any one of claims 1-10, wherein the GPS RF front-end module operates in a frequency band of L1 or L5.
12. The RF front-end circuit of any one of claims 2 to 10, further comprising M5 RF front-end modules, wherein at most one RF front-end module is connected between each of the 2.4G signal I/O ports and the WLAN chip, and at most one RF front-end module is connected between each of the 5G signal I/O ports and the WLAN chip;
wherein, M5 is more than or equal to 1 and less than or equal to 16, and M5 is a natural number.
13. A terminal device comprising the rf front-end circuit according to any one of claims 1 to 12.
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| CN111770523B (en) * | 2020-06-28 | 2022-04-05 | 四川天邑康和通信股份有限公司 | WIFI6 multichannel coupling test system |
| CN112637890B (en) * | 2020-12-22 | 2021-11-02 | 深圳市微网力合信息技术有限公司 | Control method of wifi6 equipment |
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| CN110120825A (en) * | 2019-05-31 | 2019-08-13 | Oppo广东移动通信有限公司 | RF front-end circuit and electronic equipment |
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| CN107425873A (en) * | 2017-08-31 | 2017-12-01 | 锐石创芯（厦门）科技有限公司 | Radio frequency front-end device and the electronic equipment for including it |
| CN109831223B (en) * | 2019-03-21 | 2021-07-02 | Oppo广东移动通信有限公司 | Antenna multiplexing radio frequency device and terminal |
| CN114665940A (en) * | 2019-03-28 | 2022-06-24 | Oppo广东移动通信有限公司 | Radio frequency system, antenna switching control method, related equipment and storage medium |
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| CN110120825A (en) * | 2019-05-31 | 2019-08-13 | Oppo广东移动通信有限公司 | RF front-end circuit and electronic equipment |
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