CN116388795A - Filter switch controller, radio frequency antenna and radio frequency antenna system - Google Patents
Filter switch controller, radio frequency antenna and radio frequency antenna system Download PDFInfo
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- CN116388795A CN116388795A CN202310665898.3A CN202310665898A CN116388795A CN 116388795 A CN116388795 A CN 116388795A CN 202310665898 A CN202310665898 A CN 202310665898A CN 116388795 A CN116388795 A CN 116388795A
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- 238000001514 detection method Methods 0.000 claims description 10
- 239000003990 capacitor Substances 0.000 claims description 6
- 238000010586 diagram Methods 0.000 description 8
- 230000015572 biosynthetic process Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000004891 communication Methods 0.000 description 3
- 238000002955 isolation Methods 0.000 description 2
- 238000005457 optimization Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
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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
- H04B1/403—Circuits using the same oscillator for generating both the transmitter frequency and the receiver local oscillator frequency
- H04B1/405—Circuits using the same oscillator for generating both the transmitter frequency and the receiver local oscillator frequency with multiple discrete channels
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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
- H04B1/0053—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 with common antenna for more than one band
- H04B1/0057—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 with common antenna for more than one band using diplexing or multiplexing filters for selecting the desired band
-
- 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
- H04B1/0053—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 with common antenna for more than one band
- H04B1/006—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 with common antenna for more than one band using switches for selecting the desired band
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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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/40—Arrangements for reducing harmonics
Abstract
The application provides a filter switch controller, a radio frequency antenna and a radio frequency antenna system. The filter switch controller includes: the device comprises a signal processing circuit, a band-pass gating switch, a band-pass filter combination and a transceiver circuit combination; the transceiver circuit combination comprises a plurality of transceiver circuits; the band-pass filter combination comprises a plurality of band-pass filters, and the band-pass frequency ranges of the band-pass filters are different; the signal processing circuit is connected with the input end of the band-pass gating switch and is used for sending gating signals to the band-pass gating switch; the band-pass gating switch controls one band-pass filter in the corresponding gating band-pass filter combination of the output end based on the gating signal; the band-pass filters are in one-to-one correspondence with the output ends of the band-pass gating switches. The single controller is used for controlling a plurality of devices, the band-pass filters are in one-to-one correspondence with the receiving and transmitting circuits, the single device corresponds to one frequency point, the filter switch controller is controlled in a single-channel time-sharing mode, and point-to-point control of the single device by the single controller is achieved.
Description
Technical Field
The present disclosure relates to the field of wireless communications technologies, and in particular, to a filter switch controller, a radio frequency antenna, and a radio frequency antenna system.
Background
There is a centralized control requirement for a plurality of modularized devices of the same type in the field of wireless communication control, so as to realize centralized management of a multi-device system and improve management and control efficiency, for example: centralized control of robot formation, unmanned aerial vehicle clusters and multiple antennas is performed to achieve unified execution of specified actions or tasks by each device. In the actual control process, there is also a need for separate control for a single device, and in implementing the embodiments of the present application, it is found that at least the following problems exist in the prior art: the existing centralized control equipment has low independent control efficiency on the modularized equipment.
Disclosure of Invention
The embodiment of the application provides a filter switch controller, a radio frequency antenna and a radio frequency antenna system, which are used for solving the problem that the independent control efficiency of the conventional centralized control equipment on modularized equipment is low.
In a first aspect, an embodiment of the present application provides a filter switch controller, including: the device comprises a signal processing circuit, a band-pass gating switch, a band-pass filter combination and a transceiver circuit combination;
wherein the transceiver circuit combination comprises a plurality of transceiver circuits; the band-pass filter combination comprises a plurality of band-pass filters, and the band-pass frequency ranges of the band-pass filters are different; the band-pass filters are in one-to-one correspondence with the transceiver circuits;
the band-pass gating switch is a single-pole multi-throw switch; the signal processing circuit is connected with the input end of the band-pass gating switch and is used for sending gating signals to the band-pass gating switch; the band-pass gating switch controls the output end to correspondingly gate one band-pass filter in the band-pass filter combination based on the gating signal;
the band-pass filters are in one-to-one correspondence with the output ends of the band-pass gating switches.
In one possible implementation, each transceiver circuit includes: a signal transmitting sub-circuit and a signal receiving sub-circuit;
the signal transmitting sub-circuit is used for processing a transmitting signal;
the signal receiving subcircuit is used for processing the received signal.
In one possible implementation, each transceiver circuit further includes a transceiver gating switch; the receiving and transmitting gating switch is a single-pole double-throw switch;
the input end of the receiving and transmitting gating switch is connected with the corresponding band-pass filter;
the output end of the receiving and transmitting gating switch is in gating connection with any one of the signal receiving sub-circuit and the signal transmitting sub-circuit.
In one possible implementation, each transceiver circuit further includes: isolating the capacitor;
the isolating capacitor is arranged between the signal receiving sub-circuit and the signal transmitting sub-circuit.
In one possible implementation, the filter switch controller further includes: a transmitting unit combination and a receiving unit combination; the transmitting unit combination comprises a plurality of transmitting subunits; the receiving unit combination includes a plurality of receiving subunits; the transmitting sub-units are in one-to-one correspondence with the signal transmitting sub-circuits; the receiving sub-units are in one-to-one correspondence with the signal receiving sub-circuits;
the transmitting subunit is connected with the signal transmitting sub-circuit and is used for transmitting the signals processed by the signal transmitting sub-circuit;
the receiving subunit is connected with the signal receiving sub-circuit and is used for receiving external signals and transmitting the external signals to the signal receiving sub-circuit so as to carry out signal processing by the signal receiving sub-circuit.
In one possible implementation, the filter switch controller further includes: a temperature compensation circuit;
wherein, the temperature compensation circuit is respectively connected with each transceiver circuit.
In one possible implementation, the temperature compensation circuit includes: a variable gain amplifier and a power detection control unit;
the input end of the power detection control unit is connected with the output end of the variable gain amplifier; the output end of the power detection control unit is connected with the input end of the variable gain amplifier.
In one possible implementation, when the temperature compensation circuit is connected to the signal transmitting sub-circuit or the signal receiving sub-circuit, the input terminal of the variable gain amplifier is connected to the output terminal of the signal transmitting sub-circuit or the signal receiving sub-circuit, respectively.
In a second aspect, embodiments of the present application provide a radio frequency antenna comprising a filter switch controller as described above in the first aspect or any one of the possible implementations of the first aspect.
In a third aspect, embodiments of the present application provide a radio frequency antenna system, where the radio frequency antenna system includes a plurality of radio frequency antennas;
wherein the one or more radio frequency antennas comprise a filter switch controller as described in the first aspect or any one of the possible implementations of the first aspect.
The embodiment of the application provides a filter switch controller, a radio frequency antenna and a radio frequency antenna system, which are based on a plurality of different band-pass filters and a plurality of receiving and transmitting circuits, control of a single controller on a plurality of devices is realized, the band-pass filters are in one-to-one correspondence with the receiving and transmitting circuits, the single device corresponds to one frequency point, and the filter switch controller adopts single-channel time-sharing control, so that point-to-point control of the single controller on the single device is realized.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments or the description of the prior art will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of a filter switch controller according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of a filter switch controller according to another embodiment of the present invention;
FIG. 3 is a schematic diagram of a filter switch controller according to another embodiment of the present invention;
fig. 4 is a schematic structural diagram of a filter switch controller according to another embodiment of the present invention.
Detailed Description
In order to make the present solution better understood by those skilled in the art, the technical solution in the present solution embodiment will be clearly described below with reference to the accompanying drawings in the present solution embodiment, and it is obvious that the described embodiment is an embodiment of a part of the present solution, but not all embodiments. All other embodiments, based on the embodiments in this solution, which a person of ordinary skill in the art would obtain without inventive faculty, shall fall within the scope of protection of this solution.
The term "comprising" in the description of the present solution and the claims and in the above-mentioned figures, as well as any other variants, means "including but not limited to", intended to cover a non-exclusive inclusion, and not limited to only the examples listed herein. Furthermore, the terms "first" and "second," etc. are used for distinguishing between different objects and not for describing a particular sequential order.
The terms first, second and the like in the description and in the claims of embodiments of the invention and in the above-described figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate in order to describe embodiments of the invention herein. Furthermore, the terms "comprise" and "have," as well as any variations thereof, are intended to cover a non-exclusive inclusion. The term "plurality" means two or more, unless otherwise indicated. In the embodiment of the invention, the character "/" indicates that the front object and the rear object are in an OR relationship. For example, A/B represents: a or B. The term "and/or" is an associative relationship that describes an object, meaning that there may be three relationships. For example, a and/or B, represent: a or B, or, A and B.
The implementation of the invention is described in detail below with reference to the specific drawings:
fig. 1 is a schematic structural diagram of a filter switch controller according to an embodiment of the invention. Referring to fig. 1, the filter switch controller includes: the device comprises a signal processing circuit, a band-pass gating switch, a band-pass filter combination and a transceiver circuit combination.
The transceiver circuit combination comprises a plurality of transceiver circuits. The band-pass filter combination includes a plurality of band-pass filters, and each band-pass filter has a different band-pass frequency range. The band-pass filters are in one-to-one correspondence with the transceiving circuits.
The band-pass gating switch is a single-pole multi-throw switch; the signal processing circuit is connected with the input end of the band-pass gating switch and is used for sending gating signals to the band-pass gating switch; the bandpass gating switch controls the output end to correspond to one bandpass filter in the gating bandpass filter combination based on the gating signal. The band-pass filters are in one-to-one correspondence with the output ends of the band-pass gating switches.
In the specific implementation process, a signal processing circuit sends out a selection signal, and one bandpass filter in the bandpass gating switch selection bandpass filter combination is communicated to control one transceiver circuit to work so as to realize the control of a single device in the modularized equipment. Wherein the gating signal includes one or more of a gating bandpass filter number, a gating switch output number, and a controlled device number. Wherein the controlled devices are the same type of device or different types of devices. For example: the controlled equipment is a robot in a robot formation or an unmanned aerial vehicle in an unmanned aerial vehicle cluster; alternatively, the controlled device is a robot or a drone in a hybrid formation of a robot and a drone.
In addition, the controlled device is connected in wireless communication with the corresponding transceiving circuit.
In this embodiment, based on a plurality of different band-pass filters and a plurality of transceiver circuits, control of a single controller on a plurality of devices is achieved, the band-pass filters correspond to the transceiver circuits one by one, a single device corresponds to a frequency point, and the filter switch controller adopts single-channel time-sharing control, so that point-to-point control of the single controller on the single device is achieved.
Fig. 2 is a schematic structural diagram of a filter switch controller according to another embodiment of the present invention. In one possible implementation, referring to fig. 2, each transceiver circuit includes: a signal transmitting sub-circuit and a signal receiving sub-circuit;
the signal transmitting sub-circuit comprises a first power amplifier and a second power amplifier, wherein the first power amplifier is used for processing a transmitting signal;
the signal receiving subcircuit includes a second power amplifier for processing the received signal.
In the implementation process, the filter switch controller can also control the operation of the controlled equipment and receive the feedback signal of the controlled equipment. For example: and controlling the actions of robots in the robot formation or controlling the flying actions of unmanned aerial vehicles in the unmanned aerial vehicle cluster through the filter switch controller.
In this embodiment, the signal transmitting sub-circuit and the signal receiving sub-circuit in the transceiver circuit are separately provided, so as to realize simultaneous signal transceiving between the filter switch controller and the controlled device.
Fig. 3 is a schematic structural diagram of a filter switch controller according to another embodiment of the present invention. In one possible implementation, referring to fig. 3, each transceiver circuit further includes a transceiver strobe switch; the receiving and transmitting gating switch is a single-pole double-throw switch;
the input end of the receiving and transmitting gating switch is connected with the corresponding band-pass filter;
the output end of the receiving and transmitting gating switch is in gating connection with any one of the signal receiving sub-circuit and the signal transmitting sub-circuit.
In the specific implementation process, the signal receiving subcircuit or the signal transmitting subcircuit is gated by the receiving and transmitting gating switch, so that the time-sharing work of signal receiving and signal transmitting is controlled, the receiving signal and the transmitting signal are not interfered with each other, the receiving and transmitting signal isolation is realized, and the control accuracy of controlled equipment is improved.
Fig. 4 is a schematic structural diagram of a filter switch controller according to another embodiment of the present invention. Wherein fig. 4 is exemplarily shown on the basis of fig. 3.
In one possible implementation, referring to fig. 4, each transceiver circuit further includes: isolating the capacitor; the isolating capacitor is arranged between the signal receiving sub-circuit and the signal transmitting sub-circuit.
In the embodiment, the signal isolation of the signal receiving sub-circuit and the signal transmitting sub-circuit is realized through the circuit structure, so that the practicability, the signal stability and the anti-interference capability of the filter switch controller are enhanced.
In one possible implementation, the filter switch controller further includes: a transmitting unit combination and a receiving unit combination; the transmitting unit combination comprises a plurality of transmitting subunits; the receiving unit combination comprises a plurality of receiving subunits; the transmitting sub-units are in one-to-one correspondence with the signal transmitting sub-circuits; the receiving sub-units are in one-to-one correspondence with the signal receiving sub-circuits;
the transmitting sub-unit is connected with the signal transmitting sub-circuit and is used for transmitting the signals processed by the signal transmitting sub-circuit;
the receiving subunit is connected with the signal receiving sub-circuit and is used for receiving external signals and transmitting the external signals to the signal receiving sub-circuit so as to carry out signal processing by the signal receiving sub-circuit.
The transmitting subunit and the receiving subunit are antenna modules with the same structure. Optionally, the antenna module is a slot antenna, a microstrip patch antenna or a suspended antenna.
In one possible implementation, the filter switch controller further includes: a temperature compensation circuit;
the temperature compensation circuit is connected with each transceiver circuit.
In this embodiment, for the situation that the application scenario of the modularized equipment is abundant, when working in extremely hot environments, extremely cold environments and temperature abrupt change environments, the parameter differences such as the amplitude and the phase of signals are different, and in order to improve the anti-interference capability of the filter switch controller, the amplitude and the phase deviation optimization of the receiving and transmitting signals is realized based on the temperature compensation circuit.
In different embodiments, the composition of the temperature compensation circuit varies.
In one possible implementation, the temperature compensation circuit includes: a variable gain amplifier and a power detection control unit;
the input end of the power detection control unit is connected with the output end of the variable gain amplifier; the output end of the power detection control unit is connected with the input end of the variable gain amplifier.
In this embodiment, the power detection control unit is used to implement the difference between the output signal of the variable gain amplifier and the set standard signal, so as to adjust the gain value of the variable gain amplifier, and improve the stability of signal transceiving and the frequency stability.
In one possible implementation, when the temperature compensation circuit is connected to the signal transmitting sub-circuit or the signal receiving sub-circuit, the input of the variable gain amplifier is connected to the output of the signal transmitting sub-circuit or the signal receiving sub-circuit, respectively.
In this embodiment, the access mode of the temperature compensation circuit for the signal transmitting sub-circuit or the signal receiving sub-circuit is adapted to be adjusted, so as to simultaneously satisfy the optimization control for the receiving and transmitting signals.
The embodiment of the application also provides a radio frequency antenna, which comprises the filter switch controller in any one of the possible implementation modes.
The embodiment of the application provides a radio frequency antenna system, which comprises a plurality of radio frequency antennas;
wherein the one or more radio frequency antennas comprise a filter switch controller in any one of the possible implementations as described above.
The embodiment of the application provides a filter switch controller, a radio frequency antenna and a radio frequency antenna system, which are based on a plurality of different band-pass filters and a plurality of receiving and transmitting circuits, control of a single controller on a plurality of devices is realized, the band-pass filters are in one-to-one correspondence with the receiving and transmitting circuits, the single device corresponds to one frequency point, and the filter switch controller adopts single-channel time-sharing control, so that point-to-point control of the single controller on the single device is realized.
The above embodiments are only for illustrating the technical solution of the present invention, and are not limiting; although the invention has been described in detail with reference to the foregoing embodiments, it will 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 invention.
Claims (10)
1. A filter switch controller, comprising: the device comprises a signal processing circuit, a band-pass gating switch, a band-pass filter combination and a transceiver circuit combination;
wherein the transceiver circuit combination comprises a plurality of transceiver circuits; the band-pass filter combination comprises a plurality of band-pass filters, and the band-pass frequency ranges of the band-pass filters are different; the band-pass filters are in one-to-one correspondence with the transceiver circuits;
the band-pass gating switch is a single-pole multi-throw switch; the signal processing circuit is connected with the input end of the band-pass gating switch and is used for sending gating signals to the band-pass gating switch; the band-pass gating switch controls the output end to correspondingly gate one band-pass filter in the band-pass filter combination based on the gating signal;
the band-pass filters are in one-to-one correspondence with the output ends of the band-pass gating switches.
2. The filter switch controller of claim 1, wherein each transceiver circuit comprises: a signal transmitting sub-circuit and a signal receiving sub-circuit;
the signal transmitting sub-circuit is used for processing a transmitting signal;
the signal receiving subcircuit is used for processing the received signal.
3. The filter switch controller of claim 2, wherein each transceiver circuit further comprises a transceiver gating switch; the receiving and transmitting gating switch is a single-pole double-throw switch;
the input end of the receiving and transmitting gating switch is connected with the corresponding band-pass filter;
the output end of the receiving and transmitting gating switch is in gating connection with any one of the signal receiving sub-circuit and the signal transmitting sub-circuit.
4. The filter switch controller of claim 2, wherein each transceiver circuit further comprises: isolating the capacitor;
the isolating capacitor is arranged between the signal receiving sub-circuit and the signal transmitting sub-circuit.
5. The filter switch controller of claim 2, further comprising: a transmitting unit combination and a receiving unit combination; the transmitting unit combination comprises a plurality of transmitting subunits; the receiving unit combination includes a plurality of receiving subunits; the transmitting sub-units are in one-to-one correspondence with the signal transmitting sub-circuits; the receiving sub-units are in one-to-one correspondence with the signal receiving sub-circuits;
the transmitting subunit is connected with the signal transmitting sub-circuit and is used for transmitting the signals processed by the signal transmitting sub-circuit;
the receiving subunit is connected with the signal receiving sub-circuit and is used for receiving external signals and transmitting the external signals to the signal receiving sub-circuit so as to carry out signal processing by the signal receiving sub-circuit.
6. The filter switch controller of claim 2, further comprising: a temperature compensation circuit;
wherein, the temperature compensation circuit is respectively connected with each transceiver circuit.
7. The filter switch controller of claim 6, wherein the temperature compensation circuit comprises: a variable gain amplifier and a power detection control unit;
the input end of the power detection control unit is connected with the output end of the variable gain amplifier; the output end of the power detection control unit is connected with the input end of the variable gain amplifier.
8. The filter switch controller of claim 7, wherein the input of the variable gain amplifier is connected to the output of the signal transmitting sub-circuit or the signal receiving sub-circuit, respectively, when the temperature compensating circuit is connected to the signal transmitting sub-circuit or the signal receiving sub-circuit.
9. A radio frequency antenna, characterized in that it comprises a filter switch controller according to any of the preceding claims 1 to 8.
10. A radio frequency antenna system, characterized in that the radio frequency antenna system comprises a plurality of radio frequency antennas;
wherein the one or more radio frequency antennas comprise a filter switch controller according to any of the preceding claims 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310665898.3A CN116388795B (en) | 2023-06-07 | 2023-06-07 | Filter switch controller, radio frequency antenna and radio frequency antenna system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310665898.3A CN116388795B (en) | 2023-06-07 | 2023-06-07 | Filter switch controller, radio frequency antenna and radio frequency antenna system |
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| CN116388795A true CN116388795A (en) | 2023-07-04 |
| CN116388795B CN116388795B (en) | 2023-09-05 |
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| US20070066245A1 (en) * | 2005-09-22 | 2007-03-22 | Snider James R | Multiband or multimode front end antenna switch |
| CN101841346A (en) * | 2009-03-19 | 2010-09-22 | 鸿富锦精密工业（深圳）有限公司 | Wireless transceiver |
| CN106160775A (en) * | 2015-04-13 | 2016-11-23 | 中国移动通信集团公司 | A kind of radio frequency path and terminal |
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| CN209057208U (en) * | 2018-07-23 | 2019-07-02 | Oppo广东移动通信有限公司 | Receiving module and Related product |
| CN110808751A (en) * | 2019-11-08 | 2020-02-18 | 昆山立讯射频科技有限公司 | Wireless communication receiving system |
| WO2021258520A1 (en) * | 2020-06-23 | 2021-12-30 | 锐石创芯（深圳）科技有限公司 | Radio-frequency front-end module, antenna apparatus, and communication terminal |
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2023
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070066245A1 (en) * | 2005-09-22 | 2007-03-22 | Snider James R | Multiband or multimode front end antenna switch |
| CN101841346A (en) * | 2009-03-19 | 2010-09-22 | 鸿富锦精密工业（深圳）有限公司 | Wireless transceiver |
| CN106160775A (en) * | 2015-04-13 | 2016-11-23 | 中国移动通信集团公司 | A kind of radio frequency path and terminal |
| CN108270453A (en) * | 2018-04-03 | 2018-07-10 | 杭州臻镭微波技术有限公司 | The RF front end structure that a kind of single antenna is received and dispatched parallel |
| CN209057208U (en) * | 2018-07-23 | 2019-07-02 | Oppo广东移动通信有限公司 | Receiving module and Related product |
| CN110808751A (en) * | 2019-11-08 | 2020-02-18 | 昆山立讯射频科技有限公司 | Wireless communication receiving system |
| WO2021258520A1 (en) * | 2020-06-23 | 2021-12-30 | 锐石创芯（深圳）科技有限公司 | Radio-frequency front-end module, antenna apparatus, and communication terminal |
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|---|---|
| CN116388795B (en) | 2023-09-05 |
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