CN117118473A - Radio frequency front-end circuit and mobile terminal - Google Patents
Radio frequency front-end circuit and mobile terminal Download PDFInfo
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- CN117118473A CN117118473A CN202211346039.XA CN202211346039A CN117118473A CN 117118473 A CN117118473 A CN 117118473A CN 202211346039 A CN202211346039 A CN 202211346039A CN 117118473 A CN117118473 A CN 117118473A
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Classifications
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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
- H04B1/005—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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- 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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Abstract
The application discloses a radio frequency front-end circuit and a mobile terminal, which comprise a radio frequency transceiver, a single-pole multi-throw switch, a first single-pole double-throw switch and a plurality of antennas; the radio frequency transceiver comprises a first transmitting port and a second transmitting port; the first transmitting port is connected with the input end of the single-pole multi-throw switch, and a plurality of output ends of the single-pole multi-throw switch are respectively connected with a plurality of antennas in a one-to-one correspondence manner; the input end of the first single-pole double-throw switch is connected with any one antenna of the plurality of antennas, one output end of the first single-pole double-throw switch is connected with any one output end of the single-pole double-throw switch, and the other output end of the first single-pole double-throw switch is connected with the second emission port; the application can effectively reduce the cost of the radio frequency front-end circuit by omitting the arrangement of the double-pole multi-throw switch device.
Description
Technical Field
The present application relates to the field of mobile communications technologies, and in particular, to a radio frequency front end circuit and a mobile terminal.
Background
An antenna round-robin function is introduced into the existing 5G mobile phone, and in an SRS mode, the more antennas participating in detection information, the more accurate the acquired channel information, and the higher the downloading rate. Wherein 1T1R indicates that only one antenna is fixed to feed back SRS information to the base station, i.e. SRS sounding is not supported. 1T4R indicates that the terminal transmits SRS signals on 4 antennas in turn, and 1 antenna is selected for transmission at a time; NSA terminals often employ this mode. 2T4R, the terminal transmits SRS signals on 4 antennas in turn, and selects 2 antennas to transmit at a time; SA terminals often employ this mode.
The current radio frequency front end design adopts an xPxT device (DPDT: double-pole double-throw switch or DP4T: double-pole four-throw switch, etc.); for example, the adopted DP4T device realizes a 2T4R function or the adopted DPDT realizes a two-antenna SRS; however, xPT devices are often expensive, thereby increasing the design cost of the RF front-end circuit.
There is thus a need for improvements and improvements in the art.
Disclosure of Invention
The application aims to provide a radio frequency front-end circuit and a mobile terminal, which can effectively reduce the cost of the radio frequency front-end circuit by omitting the arrangement of a double-pole multi-throw switching device.
In order to achieve the above purpose, the application adopts the following technical scheme:
the embodiment of the application provides a radio frequency front-end circuit, which comprises a radio frequency transceiver, a single-pole multi-throw switch, a first single-pole double-throw switch and a plurality of antennas; the radio frequency transceiver comprises a first transmitting port and a second transmitting port;
the first transmitting port is connected with the input end of the single-pole multi-throw switch, and a plurality of output ends of the single-pole multi-throw switch are respectively connected with a plurality of antennas in a one-to-one correspondence manner; the input end of the first single-pole double-throw switch is connected with any one antenna of the plurality of antennas, one output end of the first single-pole double-throw switch is connected with any one output end of the single-pole double-throw switch, and the other output end of the first single-pole double-throw switch is connected with the second emission port.
In some embodiments, the radio frequency front end circuit comprises a plurality of antennas including a first antenna, a second antenna, a third antenna, and a fourth antenna; the single-pole multi-throw switch comprises a first output end, a second output end, a third output end and a fourth output end;
the first antenna is connected with the first output end, the second antenna is connected with the second output end, the third antenna is connected with the third output end respectively, the fourth antenna is connected with the input end of the first single-pole double-throw switch, one output end of the first single-pole double-throw switch is connected with the fourth output end, and the other output end of the first single-pole double-throw switch is connected with the second emission port.
In some embodiments, the radio frequency front end circuit further comprises a second single pole double throw switch and a third single pole double throw switch;
the input end of the second single-pole double-throw switch is connected with the second transmitting port, one output end of the second single-pole double-throw switch is connected with the other output end of the first single-pole double-throw switch, the other output end of the second single-pole double-throw switch is connected with one output end of the third single-pole double-throw switch, the other output end of the third single-pole double-throw switch is connected with the fourth output end of the single-pole double-throw switch, and the input end of the third single-pole double-throw switch is connected with the third antenna.
In some embodiments, the radio frequency front end circuit further comprises a second single pole double throw switch and a single pole triple throw switch;
the input end of the second single-pole double-throw switch is connected with the second transmitting port, one output end of the second single-pole double-throw switch is connected with the other output end of the first single-pole double-throw switch, the other output end of the second single-pole double-throw switch is connected with the first output end of the single-pole triple-throw switch, the second output end of the single-pole triple-throw switch is connected with the fourth output end of the single-pole multi-throw switch, and the input end of the single-pole triple-throw switch is connected with the third antenna.
The radio frequency front-end circuit in some embodiments, the radio frequency transceiver further comprises a first receive port, a second receive port, a third receive port, and a fourth receive port; the radio frequency front-end circuit also comprises a fourth single-pole double-throw switch, a fifth single-pole double-throw switch and a sixth single-pole double-throw switch;
the input end of the fourth single-pole double-throw switch is connected with the input end of the single-pole multi-throw switch, one output end of the fourth single-pole double-throw switch is connected with the first transmitting port, and the other output end of the fourth single-pole double-throw switch is connected with the first receiving port; the input end of the fifth single-pole double-throw switch is connected with the input end of the second single-pole double-throw switch, one output end of the fifth single-pole double-throw switch is connected with the second transmitting port, and the other output end of the fifth single-pole double-throw switch is connected with the fourth receiving port; the third receiving port is connected with a third output end of the single-pole three-throw switch; the input end of the sixth single-pole double-throw switch is connected with the second antenna, one output end of the sixth single-pole double-throw switch is connected with the second receiving port, and the other output end of the sixth single-pole double-throw switch is connected with the second output end.
In some embodiments, the radio frequency front end circuit comprises a first transmit port, a first receive port, a second receive port, a third receive port, a fourth receive port, and a second transmit port arranged in sequence on the radio frequency transceiver;
the first antenna is close to the first transmitting port, the second antenna is close to the second receiving port, the third antenna is close to the third receiving port, and the fourth antenna is close to the second transmitting port;
the fourth single-pole double-throw switch is positioned between the single-pole double-throw switch and the first emission port and is close to the first emission port; the single-pole multi-throw switch is positioned between the fourth single-pole multi-throw switch and the first antenna and is close to the first antenna; the fifth single-pole double-throw switch is positioned between the fourth antenna and the second emission port and is close to the second emission port; the sixth single pole double throw switch is located between the second antenna and the second receiving port and is proximate to the second antenna.
In some embodiments, the radio frequency front end circuit, the single pole, triple throw switch is located between the third antenna and the third receive port and is proximate to the third antenna.
In some embodiments, the radio frequency front end circuit, the first single pole double throw switch, the second single pole double throw switch, and the fifth single pole double throw switch are positioned in series between the fourth antenna and the second transmit port, and the first single pole double throw switch is proximate to the fourth antenna.
The radio frequency front-end circuit in some embodiments further comprises a first filter, a second filter, a third filter, and a fourth filter;
the first filter is positioned between the fourth single-pole double-throw switch and the single-pole multi-throw switch and is respectively connected with the input end of the single-pole multi-throw switch and the input end of the single-pole double-throw switch; the second filter is positioned between the sixth single-pole double-throw switch and the second receiving port and is respectively connected with an output end of the sixth single-pole double-throw switch and the second receiving port; the third filter is positioned between the single-pole three-throw switch and the third receiving port and is respectively connected with the third output end of the single-pole three-throw switch and the third receiving port; the fourth filter is positioned between the second single-pole double-throw switch and the fifth single-pole double-throw switch and is respectively connected with the input end of the second single-pole double-throw switch and the input end of the fifth single-pole double-throw switch.
The embodiment of the application also provides a mobile terminal which comprises the radio frequency front-end circuit.
Compared with the prior art, the application provides the radio frequency front-end circuit and the mobile terminal, wherein the radio frequency front-end circuit comprises the radio frequency transceiver, the single-pole multi-throw switch, the first single-pole double-throw switch and the plurality of antennas, and the cost of the radio frequency front-end circuit can be effectively reduced by omitting the arrangement of the double-pole multi-throw switch and adopting the single-pole multi-throw switch and the single-pole double-throw switch.
Drawings
Fig. 1 is a first block diagram of a radio frequency front-end circuit according to the present application.
Fig. 2 is a second block diagram of the radio frequency front-end circuit provided by the present application.
Fig. 3 is a third block diagram of the radio frequency front-end circuit provided by the present application.
Fig. 4 is a fourth block diagram of the rf front-end circuit provided by the present application.
Fig. 5 is a fifth block diagram of the radio frequency front-end circuit according to the present application.
Detailed Description
The application aims to provide a radio frequency front-end circuit and a mobile terminal, which can effectively reduce the cost of the radio frequency front-end circuit by omitting the arrangement of a double-pole multi-throw switching device.
In order to make the objects, technical solutions and effects of the present application clearer and more specific, the present application will be described in further detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the application.
Referring to fig. 1, the radio frequency front-end circuit provided by the present application includes a radio frequency transceiver 10, a single-pole multi-throw switch 20, a first single-pole double-throw switch S1 and a plurality of antennas 30; the radio frequency transceiver 10 includes a first transmit port A1 and a second transmit port A2.
Wherein the single pole, multiple throw switch 20 comprises an input and a plurality of outputs, the single pole, double throw switch comprising an input and two outputs; the first transmitting port A1 is connected with the input end of the single-pole multi-throw switch 20, and a plurality of output ends of the single-pole multi-throw switch 20 are respectively connected with the plurality of antennas 30 in a one-to-one correspondence manner; the input end of the first single-pole double-throw switch S1 is connected with any one antenna of the plurality of antennas 30, one output end of the first single-pole double-throw switch S1 is connected with any one output end of the single-pole double-throw switch 20, and the other output end of the first single-pole double-throw switch S1 is connected with the second transmitting port A2; the application omits the setting of the double-pole multi-throw switch, and adopts the single-pole multi-throw switch 20 and the single-pole double-throw switch, thereby effectively reducing the cost of the radio frequency front-end circuit.
As one example, the single pole, multi-throw switch 20 may be a single pole, four throw switch T4, the single pole, four throw switch T4 including one input and four outputs. Accordingly, the plurality of antennas 30 includes a first antenna ANT1, a second antenna ANT2, a third antenna ANT3, and a fourth antenna ANT4; the single pole, multi-throw switch 20 includes a first output, a second output, a third output, and a fourth output.
The first antenna ANT1 is connected with a first output end, the second antenna ANT2 is connected with a second output end, the third antenna ANT3 is connected with a third output end respectively, the fourth antenna ANT4 is connected with an input end of the first single-pole double-throw switch S1, an output end of the first single-pole double-throw switch S1 is connected with a fourth output end, and the other output end of the first single-pole double-throw switch S1 is connected with a second emission port A2. In this embodiment, the radio frequency front-end circuit may implement two signal transmission paths; the signal transmitted by the first transmitting port A1 can be transmitted in any one of the four antennas according to the selection of the single-pole four-throw switch; and the signal transmitted from the second transmitting port A2 may be transmitted on the fourth antenna ANT4 according to the selection of the first single pole double throw switch S1.
In some embodiments, referring to fig. 2, the radio frequency front end circuit further includes a second single pole double throw switch S2 and a third single pole double throw switch S3; the input end of the second single-pole double-throw switch S2 is connected with the second transmitting port A2, one output end of the second single-pole double-throw switch S2 is connected with the other output end of the first single-pole double-throw switch S1, the other output end of the second single-pole double-throw switch S2 is connected with one output end of the third single-pole double-throw switch S3, the other output end of the third single-pole double-throw switch S3 is connected with the fourth output end of the single-pole double-throw switch 20, and the input end of the third single-pole double-throw switch S3 is connected with the third antenna ANT 3. In this embodiment, by setting the second single-pole double-throw switch S2 and the third single-pole double-throw switch S3, the second transmitting port A2 can transmit signals on the third antenna ANT3 and the fourth antenna ANT4 according to the selection of the second single-pole double-throw switch S2 and the third single-pole switch, at this time, the first radio frequency port of the radio frequency structure can perform signal quality polling on the four antennas, and support the working mode of 1T 4R; and the transmission signal of the second transmission port A2 can perform signal quality polling on the third antenna ANT3 and the fourth antenna ANT4, so as to support the working mode of 1T 2R.
In some embodiments, referring to fig. 3, the radio frequency front end circuit further includes a second single pole double throw switch S2 and a single pole triple throw switch P1; the input end of the second single-pole double-throw switch S2 is connected with the second transmitting port A2, one output end of the second single-pole double-throw switch S2 is connected with the other output end of the first single-pole double-throw switch S1, the other output end of the second single-pole double-throw switch S2 is connected with the first output end of the single-pole three-throw switch P1, the second output end of the single-pole three-throw switch P1 is connected with the fourth output end of the single-pole multi-throw switch 20, and the input end of the single-pole three-throw switch P1 is connected with the third antenna ANT 3. In this embodiment, a single-pole three-throw switch P1 and a single-pole double-throw switch may be selectively set, which also enables the first transmitting port A1 to transmit signals at four antennas, and supports A1T 4R working mode; the second transmitting port A2 transmits signals on the third antenna ANT3 and the fourth antenna ANT4, supporting an operation mode of 1T 2R.
As an embodiment, referring to fig. 4, the radio frequency transceiver 10 further includes a first receiving port B1, a second receiving port B2, a third receiving port B3, and a fourth receiving port B4; the radio frequency front end circuit also comprises a fourth single pole double throw switch S4, a fifth single pole double throw switch S5 and a sixth single pole double throw switch S6.
The input end of the fourth single-pole double-throw switch S4 is connected with the input end of the single-pole multiple-throw switch 20, one output end of the fourth single-pole double-throw switch S4 is connected with the first transmitting port A1, and the other output end of the fourth single-pole double-throw switch S4 is connected with the first receiving port B1; the input end of the fifth single-pole double-throw switch S5 is connected with the input end of the second single-pole double-throw switch S2, one output end of the fifth single-pole double-throw switch S5 is connected with the second transmitting port A2, and the other output end of the fifth single-pole double-throw switch S5 is connected with the fourth receiving port B4; the third receiving port B3 is connected with a third output end of the single-pole three-throw switch P1; the input end of the sixth single-pole double-throw switch S6 is connected with the second antenna ANT2, one output end of the sixth single-pole double-throw switch S6 is connected with the second receiving port B2, and the other output end of the sixth single-pole double-throw switch S6 is connected with the second output end.
In this embodiment, the rf front-end circuit can realize multiple receiving paths by providing the fourth single-pole double-throw switch S4, the fifth single-pole double-throw switch S5, and the sixth single-pole double-throw switch S6. At this time, the four antennas can support both signal transmission and signal reception, and the radio frequency front-end circuit structure can support the 2T4R operation mode.
In addition, the radio frequency front-end circuit supporting 2T4R can be downward compatible with the working modes of 2T2R, 1T1R and 1T 2R. In the 2T2R operation mode, the first transmitting port A1 selects the first antenna ANT1 to transmit signals, and selects the first antenna ANT1 to receive signals, and the second transmitting port A2 selects the fourth antenna ANT4 to transmit signals and selects the fourth antenna ANT4 to receive signals. In the operation mode of 1T1R, the second transmission port A2 does not participate in the operation at this time, and only the first transmission port A1 selects the first antenna ANT1 to transmit and receive signals. In the operation mode of 1T2R, the first transmitting port A1 selects the first antenna ANT1 to transmit and receive signals, and the fourth antenna ANT4 may be selected as a receiving antenna to form a receiving path with the fourth receiving port B4. Namely, the radio frequency front-end circuit of the application saves the setting of the double-pole multi-throw switch by setting the single-pole multi-throw switch 20, the single-pole three-throw switch P1 and a plurality of single-pole double-throw switches, and can be compatible with a plurality of working modes while saving the cost.
As an example, a first transmitting port A1, a first receiving port B1, a second receiving port B2, a third receiving port B3, a fourth receiving port B4, and a second transmitting port A2 are sequentially arranged on the radio frequency transceiver 10; wherein the first antenna ANT1 is close to the first transmitting port A1, the second antenna ANT2 is close to the second receiving port B2, the third antenna ANT3 is close to the third receiving port B3, and the fourth antenna ANT4 is close to the second transmitting port A2; the fourth single pole double throw switch S4 is located between the single pole double throw switch 20 and the first transmit port A1 and is close to the first transmit port A1; the single-pole multi-throw switch 20 is located between the fourth single-pole double-throw switch S4 and the first antenna ANT1, and is close to the first antenna ANT1; the fifth single-pole double-throw switch S5 is positioned between the fourth antenna ANT4 and the second emission port A2 and is close to the second emission port A2; the sixth single pole double throw switch S6 is located between the second antenna ANT2 and the second receiving port B2, and is close to the second antenna ANT2.
The radio frequency front end circuit structure in the application arranges the single-pole double-throw switch, the single-pole three-throw switch P1 and the single-pole multi-throw switch 20 as close as possible to a required antenna and a required transmitting port on the line layout, so as to reduce the path winding, optimize the line layout and reduce the wiring insertion loss.
In some embodiments, the single pole, three throw switch P1 is located between the third antenna ANT3 and the third receiving port B3, and is proximate to the third antenna ANT3; at this time, the reception path formed by the third antenna ANT3, the single pole three throw switch P1, and the third radio frequency port has no winding, and is used as a reception path with higher priority.
In some embodiments, the first single pole double throw switch S1, the second single pole double throw switch S2, and the fifth single pole double throw switch S5 are arranged in sequence between the fourth antenna ANT4 and the second transmit port A2, and the first single pole double throw switch S1 is close to the fourth antenna ANT4. At this time, the path formed between the fourth antenna ANT4, the first single pole double throw switch S1, and the second single pole double throw switch S2 is free from windings, and can be a path with a higher priority. Similarly, the reception path formed by the second antenna ANT2, the sixth single pole double throw switch S6, and the second reception port B2 has no winding, and can be used as a reception path with higher priority. And no winding exists between the first antenna ANT1 and the single-pole four-throw switch, and the first antenna ANT1 can be used as a higher-priority path. In the application, the channel without winding is used as a main channel, and a higher priority is set, so that the link insertion loss on the main channel is reduced.
In some embodiments, referring to fig. 5, the radio frequency front-end circuit further includes a first filter 41, a second filter 42, a third filter 43, and a fourth filter 44; the first filter 41 is located between the fourth single-pole double-throw switch S4 and the single-pole double-throw switch 20, and is connected to the input terminal of the single-pole double-throw switch 20 and the input terminal of the single-pole double-throw switch, respectively; the second filter 42 is located between the sixth single-pole double-throw switch S6 and the second receiving port B2, and is connected to an output end of the sixth single-pole double-throw switch S6 and the second receiving port B2, respectively; the third filter 43 is located between the single-pole three-throw switch P1 and the third receiving port B3, and is connected to the third output end of the single-pole three-throw switch P1 and the third receiving port B3, respectively; the fourth filter 44 is located between the second single-pole double-throw switch S2 and the fifth single-pole double-throw switch S5, and is connected to the input terminal of the second single-pole double-throw switch S2 and the input terminal of the fifth single-pole double-throw switch S5, respectively.
In some embodiments, the radio frequency front-end circuit further comprises a first power amplifier 51 and a second power amplifier 52, the first power amplifier 51 being disposed proximate to the first transmit port A1 and the second power amplifier 52 being disposed proximate to the second transmit port A2; one end of the first power amplifier 51 is connected with an output end of the fourth single-pole double-throw switch S4, and the other end of the first power amplifier 51 is connected with the first transmitting port A1; one end of the second power amplifier 52 is connected to an output end of the fifth single pole double throw switch S5, and the other end of the second power amplifier 52 is connected to the second transmitting port A2.
The application sets each filter and power amplifier close to the needed passage, which can reduce winding, optimize circuit layout and reduce link insertion loss.
Further, the present application also provides a mobile terminal, which includes the radio frequency front end circuit, and since the radio frequency front end circuit is described in detail above, the details are not repeated here.
In summary, the application provides a radio frequency front-end circuit and a mobile terminal, which comprise a radio frequency transceiver, a single-pole multi-throw switch, a first single-pole double-throw switch and a plurality of antennas; the radio frequency transceiver comprises a first transmitting port and a second transmitting port; the first transmitting port is connected with the input end of the single-pole multi-throw switch, and a plurality of output ends of the single-pole multi-throw switch are respectively connected with a plurality of antennas in a one-to-one correspondence manner; the input end of the first single-pole double-throw switch is connected with any one antenna of the plurality of antennas, one output end of the first single-pole double-throw switch is connected with any one output end of the single-pole double-throw switch, and the other output end of the first single-pole double-throw switch is connected with the second emission port; the application can effectively reduce the cost of the radio frequency front-end circuit by omitting the arrangement of the double-pole multi-throw switch device.
It will be understood that equivalents and modifications will occur to those skilled in the art in light of the present application and their spirit, and all such modifications and substitutions are intended to be included within the scope of the present application as defined in the following claims.
Claims (10)
1. The radio frequency front-end circuit is characterized by comprising a radio frequency transceiver, a single-pole multi-throw switch, a first single-pole double-throw switch and a plurality of antennas; the radio frequency transceiver comprises a first transmitting port and a second transmitting port;
the first transmitting port is connected with the input end of the single-pole multi-throw switch, and a plurality of output ends of the single-pole multi-throw switch are respectively connected with the plurality of antennas in a one-to-one correspondence manner; the input end of the first single-pole double-throw switch is connected with any one antenna of the plurality of antennas, one output end of the first single-pole double-throw switch is connected with any one output end of the single-pole double-throw switch, and the other output end of the first single-pole double-throw switch is connected with the second transmitting port.
2. The radio frequency front-end circuit of claim 1, wherein the plurality of antennas comprises a first antenna, a second antenna, a third antenna, and a fourth antenna; the single-pole multi-throw switch comprises a first output end, a second output end, a third output end and a fourth output end;
the first antenna is connected with the first output end, the second antenna is connected with the second output end, the third antenna is connected with the third output end respectively, the fourth antenna is connected with the input end of the first single-pole double-throw switch, one output end of the first single-pole double-throw switch is connected with the fourth output end, and the other output end of the first single-pole double-throw switch is connected with the second emission port.
3. The radio frequency front-end circuit of claim 2, further comprising a second single pole double throw switch and a third single pole double throw switch;
the input end of the second single-pole double-throw switch is connected with the second transmitting port, one output end of the second single-pole double-throw switch is connected with the other output end of the first single-pole double-throw switch, the other output end of the second single-pole double-throw switch is connected with one output end of the third single-pole double-throw switch, the other output end of the third single-pole double-throw switch is connected with the fourth output end of the single-pole double-throw switch, and the input end of the third single-pole double-throw switch is connected with the third antenna.
4. The radio frequency front-end circuit of claim 2, further comprising a second single pole double throw switch and a single pole triple throw switch;
the input end of the second single-pole double-throw switch is connected with the second transmitting port, one output end of the second single-pole double-throw switch is connected with the other output end of the first single-pole double-throw switch, the other output end of the second single-pole double-throw switch is connected with the first output end of the single-pole triple-throw switch, the second output end of the single-pole triple-throw switch is connected with the fourth output end of the single-pole multi-throw switch, and the input end of the single-pole triple-throw switch is connected with the third antenna.
5. The radio frequency front-end circuit of claim 4, wherein the radio frequency transceiver further comprises a first receive port, a second receive port, a third receive port, and a fourth receive port; the radio frequency front-end circuit further comprises a fourth single-pole double-throw switch, a fifth single-pole double-throw switch and a sixth single-pole double-throw switch;
the input end of the fourth single-pole double-throw switch is connected with the input end of the single-pole multi-throw switch, one output end of the fourth single-pole double-throw switch is connected with the first transmitting port, and the other output end of the fourth single-pole double-throw switch is connected with the first receiving port; the input end of the fifth single-pole double-throw switch is connected with the input end of the second single-pole double-throw switch, one output end of the fifth single-pole double-throw switch is connected with the second transmitting port, and the other output end of the fifth single-pole double-throw switch is connected with the fourth receiving port; the third receiving port is connected with a third output end of the single-pole three-throw switch; the input end of the sixth single-pole double-throw switch is connected with the second antenna, one output end of the sixth single-pole double-throw switch is connected with the second receiving port, and the other output end of the sixth single-pole double-throw switch is connected with the second output end.
6. The radio frequency front-end circuit of claim 5, wherein the first transmit port, the first receive port, the second receive port, the third receive port, the fourth receive port, and the second transmit port are sequentially arranged on the radio frequency transceiver;
the first antenna is close to the first transmitting port, the second antenna is close to the second receiving port, the third antenna is close to the third receiving port, and the fourth antenna is close to the second transmitting port;
the fourth single pole double throw switch is located between the single pole double throw switch and the first transmit port and is close to the first transmit port; the single-pole multi-throw switch is positioned between the fourth single-pole double-throw switch and the first antenna and is close to the first antenna; the fifth single pole double throw switch is located between the fourth antenna and the second transmitting port and is close to the second transmitting port; the sixth single pole double throw switch is located between the second antenna and the second receiving port and is proximate to the second antenna.
7. The radio frequency front-end circuit of claim 6, wherein the single pole, triple throw switch is located between the third antenna and the third receive port and is proximate to the third antenna.
8. The radio frequency front-end circuit of claim 6, wherein the first single pole double throw switch, the second single pole double throw switch, and the fifth single pole double throw switch are positioned in series between the fourth antenna and the second transmit port, and the first single pole double throw switch is positioned proximate to the fourth antenna.
9. The radio frequency front-end circuit of claim 6, further comprising a first filter, a second filter, a third filter, and a fourth filter;
the first filter is positioned between the fourth single-pole double-throw switch and the single-pole double-throw switch, and is respectively connected with the input end of the single-pole double-throw switch and the input end of the single-pole double-throw switch; the second filter is positioned between the sixth single-pole double-throw switch and the second receiving port, and is respectively connected with an output end of the sixth single-pole double-throw switch and the second receiving port; the third filter is positioned between the single-pole three-throw switch and the third receiving port and is respectively connected with a third output end of the single-pole three-throw switch and the third receiving port; the fourth filter is located between the second single-pole double-throw switch and the fifth single-pole double-throw switch, and is respectively connected with the input end of the second single-pole double-throw switch and the input end of the fifth single-pole double-throw switch.
10. A mobile terminal comprising a radio frequency front-end circuit as claimed in any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211346039.XA CN117118473A (en) | 2022-10-31 | 2022-10-31 | Radio frequency front-end circuit and mobile terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211346039.XA CN117118473A (en) | 2022-10-31 | 2022-10-31 | Radio frequency front-end circuit and mobile terminal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117118473A true CN117118473A (en) | 2023-11-24 |
Family
ID=88798944
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211346039.XA Pending CN117118473A (en) | 2022-10-31 | 2022-10-31 | Radio frequency front-end circuit and mobile terminal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117118473A (en) |
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2022
- 2022-10-31 CN CN202211346039.XA patent/CN117118473A/en active Pending
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