CN110890900A - Radio frequency circuit and electronic equipment - Google Patents
Radio frequency circuit and electronic equipment Download PDFInfo
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- CN110890900A CN110890900A CN201911205832.6A CN201911205832A CN110890900A CN 110890900 A CN110890900 A CN 110890900A CN 201911205832 A CN201911205832 A CN 201911205832A CN 110890900 A CN110890900 A CN 110890900A
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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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Abstract
The embodiment of the invention discloses a radio frequency circuit and electronic equipment, and aims to solve the problems of large difference loss and poor isolation of currently designed radio frequency circuit elements. The device comprises a transceiver, and a first transmitting path, a first receiving path, a second transmitting path, a third receiving path and a fourth receiving path which are respectively connected with the transceiver. The first antenna group is connected by using the three-pole three-throw switch in the first transmitting path, the first receiving path and the second receiving path, and the second antenna group is connected by using the double-pole double-throw switch in the second transmitting path and the third receiving path, so that the element difference loss caused by using a plurality of three-pole three-throw switches in the radio frequency circuit can be effectively reduced by using one double-pole double-throw switch because the element difference loss of the double-pole double-throw switch is small; meanwhile, the double-pole double-throw switch has few switching paths and better isolation, so that signal interference can be reduced.
Description
Technical Field
The present invention relates to the field of radio frequency front end technologies, and in particular, to a radio frequency circuit and an electronic device.
Background
With the great popularization of mobile intelligent terminals, the demand of users on data traffic is increasing. From 4G applied to multimedia and broadband, the rate is 100M-1 Gbps, and the peak rate can reach 20Gbps to 5GNR (New Radio, New air interface), and the improvement of the rate requires that 5G has 4 × 4MIMO (Multiple input Multiple Output) technology. At present, 5G mobile electronic devices require higher and higher operating frequency and larger bandwidth, which results in large component difference loss and poor isolation.
Disclosure of Invention
The embodiment of the invention provides a radio frequency circuit and electronic equipment, and aims to solve the problems of large difference loss and poor isolation of currently designed radio frequency circuit elements.
To solve the above technical problem, the embodiment of the present invention is implemented as follows:
in a first aspect, an embodiment of the present invention provides a radio frequency circuit, including a transceiver, and a first transmitting path, a first receiving path, a second transmitting path, a third receiving path, and a fourth receiving path, which are connected to the transceiver respectively; wherein:
the first transmitting path comprises a first transmitting circuit, a three-pole three-throw switch and a first antenna set which are sequentially connected; the first antenna group comprises a first antenna, a second antenna, a third antenna and a fourth antenna;
the first receiving path comprises a first receiving circuit, the three-pole three-throw switch and the first antenna set which are connected in sequence;
the second receiving path comprises a second receiving circuit, the three-pole three-throw switch and the first antenna set which are connected in sequence;
the second transmitting path comprises a second transmitting circuit, a double-pole double-throw switch and a second antenna group which are sequentially connected; the second antenna group includes the third antenna and the fourth antenna;
the third receiving path comprises a third receiving circuit, the double-pole double-throw switch and the second antenna group which are connected in sequence;
the fourth receiving path includes a fourth receiving circuit and the first antenna connected in sequence.
In a second aspect, an embodiment of the present invention further provides an electronic device, including the radio frequency circuit according to the first aspect.
In the embodiment of the invention, the first antenna group is connected by using the three-pole three-throw switch (3P3T) in the first transmitting path, the first receiving path and the second receiving path, and the second antenna group is connected by using the double-pole double-throw switch (DPDT) in the second transmitting path and the third receiving path, so that the number of 3P3T in the radio frequency circuit is reduced, and the element difference loss caused by using a plurality of 3P3T can be effectively reduced by using one DPDT in the radio frequency circuit because the element difference loss of the DPDT is smaller; meanwhile, as the DPDT has fewer switching paths and better isolation, the signal interference can be reduced; in addition, the complexity of the radio frequency circuit is low, so that the circuit winding is less, the path loss caused by long wiring among all the channels is avoided, and the cost can be reduced; moreover, the radio frequency circuit can maintain the support of the electronic equipment on one-path transmitting four-path receiving function or two-path transmitting four-path receiving function on the basis of the advantages.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below, it is obvious that the drawings in the following description are only some embodiments described in the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic diagram of an rf circuit according to an embodiment of the present invention.
Fig. 2 is a schematic diagram of an rf circuit according to another embodiment of the present invention.
Fig. 3 is a schematic structural diagram of an electronic device in an embodiment of the invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, embodiments of the present invention. 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 invention.
Fig. 1 is a schematic diagram of an rf circuit according to an embodiment of the present invention. The radio frequency circuit comprises a transceiver 10, and a first transmitting path, a first receiving path, a second transmitting path, a third receiving path and a fourth receiving path which are respectively connected with the transceiver 10; wherein, as shown in fig. 1:
the first transmitting path comprises a first transmitting circuit 110, a three-pole three-throw switch 3P3T and a first antenna group 111 which are connected in sequence; the first antenna group 111 includes a first antenna ANT1, a second antenna ANT2, a third antenna ANT3, and a fourth antenna ANT 4;
the first receiving path includes a first receiving circuit 120, a three-pole three-throw switch 3P3T and a first antenna group 111 connected in sequence;
the second receiving path includes a second receiving circuit 130, a three-pole three-throw switch 3P3T and a first antenna group 111 connected in sequence;
the second transmitting path includes a second transmitting circuit 140, a double-pole double-throw switch DPDT, and a second antenna group 141, which are connected in sequence; the second antenna group 141 includes a third antenna ANT3 and a fourth antenna ANT 4;
the third receiving path includes a third receiving circuit 150, a double-pole double-throw switch DPDT, and a second antenna set 141, which are connected in sequence;
the fourth receiving path includes a fourth receiving circuit 160 and a first antenna ANT1 connected in this order.
In the embodiment of the invention, the three-pole three-throw switch (3P3T) is used in the first transmitting path, the first receiving path and the second receiving path to connect with the first antenna group, and the double-pole double-throw switch (DPDT) is used in the second transmitting path and the third receiving path to connect with the second antenna group, so that the number of 3P3T in the radio frequency circuit is reduced, and the element difference loss caused by using a plurality of 3P3T can be effectively reduced by using one DPDT in the radio frequency circuit because the element difference loss of the DPDT is smaller; meanwhile, as the DPDT has fewer switching paths and better isolation, the signal interference can be reduced; in addition, the complexity of the radio frequency circuit is low, so that the circuit winding is less, the path loss caused by long wiring among all the channels is avoided, and the cost can be reduced; moreover, the radio frequency circuit can maintain the support of the electronic equipment on one-path transmitting four-path receiving function or two-path transmitting four-path receiving function on the basis of the advantages.
Fig. 2 is a schematic diagram of an rf circuit according to another embodiment of the present invention. In one embodiment, as shown in fig. 2, the first transmitting circuit 110 includes a first amplifier PA1, a first single-pole double-throw switch SW1 and a first Filter1 connected in sequence; the first Filter1 is connected with the three-pole three-throw switch 3P 3T;
the first receiving circuit 120 includes a second amplifier LNA1, a first single-pole double-throw switch SW1 and a first Filter1 connected in sequence;
the second receiving circuit 130 includes a third amplifier LNA2 and a second Filter2 connected in sequence; the second Filter2 is connected with the three-pole three-throw switch 3P 3T;
the second transmitting circuit 140 includes a fourth amplifier PA2, a second single-pole double-throw switch SW2 and a third Filter3 connected in sequence; the third Filter3 is connected with the double-pole double-throw switch DPDT;
the third receiving circuit 150 includes a fifth amplifier LNA3, a second single-pole double-throw switch SW2 and a third Filter3 connected in sequence;
the fourth receiving circuit 160 includes a sixth amplifier LNA4, a fourth Filter4, and a third single-pole double-throw switch SW3 connected in sequence; the third single pole double throw switch SW3 is connected to the first antenna ANT 1.
In one embodiment, as shown in fig. 2, the three-pole-three-throw switch 3P3T is connected to the first antenna ANT1 through a third single-pole-two-throw switch SW 3; the three-pole three-throw switch 3P3T is connected to the third antenna ANT3 and the fourth antenna ANT4 through the two-pole two-throw switch DPDT.
In one embodiment, a signal received by the transceiver 10 is transmitted to the first antenna ANT1, the second antenna ANT2, the third antenna ANT3, or the fourth antenna ANT4 through the first transmission path.
As shown in fig. 2 (transceiver 10 is not shown in fig. 2). The arrow to the right in the figure indicates the direction of the signal in the transmit path. The signal received by the transceiver 10 is amplified by the first amplifier PA1 and transmitted to the first single-pole double-throw switch SW1, then transmitted to the first Filter1 by the first single-pole double-throw switch SW1, and then transmitted to the three-pole three-throw switch 3P3T after being filtered by the first Filter 1. After receiving the signal, the three-pole three-throw switch 3P3T can transmit the signal according to the following path: switching to the third spdt switch SW3, and transmitting a signal to the first antenna ANT1 through the third spdt switch SW 3; or, transmit the signal directly to the second antenna ANT 2; or, the antenna is switched to the double pole double throw switch DPDT, and then a signal is transmitted to the third antenna ANT3 or the fourth antenna ANT4 through the double pole double throw switch DPDT.
In one embodiment, a signal received by the transceiver 10 is transmitted to the first antenna ANT1, the second antenna ANT2, the third antenna ANT3, or the fourth antenna ANT4 through the first transmission path, and is transmitted to the third antenna ANT3 or the fourth antenna ANT4 through the second transmission path.
As shown in fig. 2 (transceiver 10 is not shown in fig. 2). The arrow to the right in the figure indicates the direction of the signal in the transmit path. The signal received by the transceiver 10 is amplified by the first amplifier PA1 and transmitted to the first single-pole double-throw switch SW1, then transmitted to the first Filter1 by the first single-pole double-throw switch SW1, and then transmitted to the three-pole three-throw switch 3P3T after being filtered by the first Filter 1. After receiving the signal, the three-pole three-throw switch 3P3T can transmit the signal according to the following path: switching to the third spdt switch SW3, and transmitting a signal to the first antenna ANT1 through the third spdt switch SW 3; or, transmit the signal directly to the second antenna ANT 2; or, the antenna is switched to the double pole double throw switch DPDT, and then a signal is transmitted to the third antenna ANT3 or the fourth antenna ANT4 through the double pole double throw switch DPDT. Meanwhile, a signal received by the transceiver 10 is amplified by the fourth amplifier PA2 and transmitted to the second single-pole double-throw switch SW2, then switched to the third Filter3 by the second single-pole double-throw switch SW2, and then filtered by the third Filter3 and transmitted to the double-pole double-throw switch DPDT, and then transmitted to the third antenna ANT3 or the fourth antenna ANT4 through the double-pole double-throw switch DPDT.
In one embodiment, a signal received by the first antenna ANT1 may be transmitted to the transceiver 10 through a fourth receive path; a signal received by the second antenna ANT2 may be transmitted to the transceiver 10 through the first reception path; a signal received by the third antenna ANT3 may be transmitted to the transceiver 10 through the second reception path; a signal received by the fourth antenna ANT4 may be transmitted to the transceiver 10 through the third receive path.
As shown in fig. 2 (transceiver 10 is not shown in fig. 2). The left arrow in the figure indicates the direction of the signal in the receive path. A signal received by the first antenna ANT1 is switched to the fourth Filter4 through the third single-pole double-throw switch SW3, then is filtered by the fourth Filter4 and transmitted to the sixth amplifier LNA4, and then is amplified by the sixth amplifier LNA4 and then is transmitted to the transceiver 10; a signal received by the second antenna ANT2 is switched to the first Filter1 through the three-pole three-throw switch 3P3T, then is filtered by the first Filter1, is switched to the second amplifier LNA1 through the first single-pole two-throw switch SW1, is amplified by the second amplifier LNA1, and then is transmitted to the transceiver 10; a signal received by the third antenna ANT3 is switched to the three-pole three-throw switch 3P3T through the double-pole double-throw switch DPDT, then switched to the second Filter2 through the three-pole three-throw switch 3P3T, and then filtered by the second Filter2 and transmitted to the third amplifier LNA2, and then amplified by the third amplifier LNA2 and transmitted to the transceiver 10; a signal received by the fourth antenna ANT4 is switched to the third Filter3 through the double pole double throw switch DPDT, then is filtered by the third Filter3, is switched to the fifth amplifier LNA3 through the second single pole double throw switch SW2, and is amplified by the fifth amplifier LNA3 to be transmitted to the transceiver 10.
In one embodiment, the first and fourth amplifiers PA1, PA2 may be power amplifiers; the second, third, fifth, and sixth amplifiers LNA1, LNA2, LNA3, and LNA4 may be low noise amplifiers.
Fig. 3 is a schematic structural diagram of an electronic device in an embodiment of the invention. Referring to fig. 3, the electronic device 300 includes the radio frequency circuit 310 provided in any of the embodiments, and the circuit structure of the radio frequency circuit 310 has been described in detail in the embodiments, and thus is not described again. Furthermore, the electronic device 300 supports one-way transmitting four-way receiving function or two-way transmitting four-way receiving function.
In one embodiment, in the case that the electronic device 300 supports one-way transmit and four-way receive functions, the signals received by the transceiver 10 are transmitted as follows: a signal is transmitted to the first antenna ANT1, the second antenna ANT2, the third antenna ANT3, or the fourth antenna ANT4 through the first transmission path.
As shown in fig. 2 (transceiver 10 is not shown in fig. 2). The arrow to the right in the figure indicates the direction of the signal in the transmit path. The signal received by the transceiver 10 is amplified by the first amplifier PA1 and transmitted to the first single-pole double-throw switch SW1, then transmitted to the first Filter1 by the first single-pole double-throw switch SW1, and then transmitted to the three-pole three-throw switch 3P3T after being filtered by the first Filter 1. After receiving the signal, the three-pole three-throw switch 3P3T can transmit the signal according to the following path: switching to the third spdt switch SW3, and transmitting a signal to the first antenna ANT1 through the third spdt switch SW 3; or, transmit the signal directly to the second antenna ANT 2; or, the antenna is switched to the double pole double throw switch DPDT, and then a signal is transmitted to the third antenna ANT3 or the fourth antenna ANT4 through the double pole double throw switch DPDT.
The transmission mode of the signals received by the antenna is as follows: a signal received by the first antenna ANT1 may be transmitted to the transceiver 10 through the fourth receive path; a signal received by the second antenna ANT2 may be transmitted to the transceiver 10 through the first reception path; a signal received by the third antenna ANT3 may be transmitted to the transceiver 10 through the second reception path; a signal received by the fourth antenna ANT4 may be transmitted to the transceiver 10 through the third receive path.
As shown in fig. 2 (transceiver 10 is not shown in fig. 2). The left arrow in the figure indicates the direction of the signal in the receive path. A signal received by the first antenna ANT1 is switched to the fourth Filter4 through the third single-pole double-throw switch SW3, then is filtered by the fourth Filter4 and transmitted to the sixth amplifier LNA4, and then is amplified by the sixth amplifier LNA4 and then is transmitted to the transceiver 10; a signal received by the second antenna ANT2 is switched to the first Filter1 through the three-pole three-throw switch 3P3T, then is filtered by the first Filter1, is switched to the second amplifier LNA1 through the first single-pole two-throw switch SW1, is amplified by the second amplifier LNA1, and then is transmitted to the transceiver 10; a signal received by the third antenna ANT3 is switched to the three-pole three-throw switch 3P3T through the double-pole double-throw switch DPDT, then switched to the second Filter2 through the three-pole three-throw switch 3P3T, and then filtered by the second Filter2 and transmitted to the third amplifier LNA2, and then amplified by the third amplifier LNA2 and transmitted to the transceiver 10; a signal received by the fourth antenna ANT4 is switched to the third Filter3 through the double pole double throw switch DPDT, then is filtered by the third Filter3, is switched to the fifth amplifier LNA3 through the second single pole double throw switch SW2, and is amplified by the fifth amplifier LNA3 to be transmitted to the transceiver 10.
In one embodiment, in the case where the electronic device 300 supports two-way transmit and four-way receive functions, the signals received by the transceiver 10 are transmitted as follows: a signal is transmitted to the first antenna ANT1, the second antenna ANT2, the third antenna ANT3, or the fourth antenna ANT4 through the first transmission path, and is transmitted to the third antenna ANT3 or the fourth antenna ANT4 through the second transmission path.
As shown in fig. 2 (transceiver 10 is not shown in fig. 2). The arrow to the right in the figure indicates the direction of the signal in the transmit path. The signal received by the transceiver 10 is amplified by the first amplifier PA1 and transmitted to the first single-pole double-throw switch SW1, then transmitted to the first Filter1 by the first single-pole double-throw switch SW1, and then transmitted to the three-pole three-throw switch 3P3T after being filtered by the first Filter 1. After receiving the signal, the three-pole three-throw switch 3P3T can transmit the signal according to the following path: switching to the third spdt switch SW3, and transmitting a signal to the first antenna ANT1 through the third spdt switch SW 3; or, transmit the signal directly to the second antenna ANT 2; or, the antenna is switched to the double pole double throw switch DPDT, and then a signal is transmitted to the third antenna ANT3 or the fourth antenna ANT4 through the double pole double throw switch DPDT. Meanwhile, a signal received by the transceiver 10 is amplified by the fourth amplifier PA2 and transmitted to the second single-pole double-throw switch SW2, then switched to the third Filter3 by the second single-pole double-throw switch SW2, and then filtered by the third Filter3 and transmitted to the double-pole double-throw switch DPDT, and then transmitted to the third antenna ANT3 or the fourth antenna ANT4 through the double-pole double-throw switch DPDT.
The transmission mode of the signals received by the antenna is as follows: a signal received by the first antenna ANT1 may be transmitted to the transceiver 10 through the fourth receive path; a signal received by the second antenna ANT2 may be transmitted to the transceiver 10 through the first reception path; a signal received by the third antenna ANT3 may be transmitted to the transceiver 10 through the second reception path; a signal received by the fourth antenna ANT4 may be transmitted to the transceiver 10 through the third receive path.
As shown in fig. 2 (transceiver 10 is not shown in fig. 2). The left arrow in the figure indicates the direction of the signal in the receive path. A signal received by the first antenna ANT1 is switched to the fourth Filter4 through the third single-pole double-throw switch SW3, then is filtered by the fourth Filter4 and transmitted to the sixth amplifier LNA4, and then is amplified by the sixth amplifier LNA4 and then is transmitted to the transceiver 10; a signal received by the second antenna ANT2 is switched to the first Filter1 through the three-pole three-throw switch 3P3T, then is filtered by the first Filter1, is switched to the second amplifier LNA1 through the first single-pole two-throw switch SW1, is amplified by the second amplifier LNA1, and then is transmitted to the transceiver 10; a signal received by the third antenna ANT3 is switched to the three-pole three-throw switch 3P3T through the double-pole double-throw switch DPDT, then switched to the second Filter2 through the three-pole three-throw switch 3P3T, and then filtered by the second Filter2 and transmitted to the third amplifier LNA2, and then amplified by the third amplifier LNA2 and transmitted to the transceiver 10; a signal received by the fourth antenna ANT4 is switched to the third Filter3 through the double pole double throw switch DPDT, then is filtered by the third Filter3, is switched to the fifth amplifier LNA3 through the second single pole double throw switch SW2, and is amplified by the fifth amplifier LNA3 to be transmitted to the transceiver 10.
In the embodiment of the invention, the first antenna group is connected by using the three-pole three-throw switch (3P3T) in the first transmitting path, the first receiving path and the second receiving path, and the second antenna group is connected by using the double-pole double-throw switch (DPDT) in the second transmitting path and the third receiving path, so that the number of 3P3T in the radio frequency circuit is reduced, and the element difference loss caused by using a plurality of 3P3T can be effectively reduced by using one DPDT in the radio frequency circuit because the element difference loss of the DPDT is smaller; meanwhile, as the DPDT has fewer switching paths and better isolation, the signal interference can be reduced; in addition, the complexity of the radio frequency circuit is low, so that the circuit winding is less, the path loss caused by long wiring among all the channels is avoided, and the cost can be reduced; moreover, the radio frequency circuit can maintain the support of the electronic equipment on one-path transmitting four-path receiving function or two-path transmitting four-path receiving function on the basis of the advantages.
The foregoing description has been directed to specific embodiments of this disclosure. Other embodiments are within the scope of the following claims. In some cases, the actions or steps recited in the claims may be performed in a different order than in the embodiments and still achieve desirable results. In addition, the processes depicted in the accompanying figures do not necessarily require the particular order shown, or sequential order, to achieve desirable results. In some embodiments, multitasking and parallel processing may also be possible or may be advantageous.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
While the present invention has been described with reference to the embodiments shown in the drawings, the present invention is not limited to the embodiments, which are illustrative and not restrictive, and it will be apparent to those skilled in the art that various changes and modifications can be made therein without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (11)
1. A radio frequency circuit is characterized in that the radio frequency circuit is applied to electronic equipment supporting one-path transmitting four-path receiving function or two-path transmitting four-path receiving function; the radio frequency circuit comprises a transceiver, a first transmitting path, a first receiving path, a second transmitting path, a third receiving path and a fourth receiving path which are respectively connected with the transceiver; wherein:
the first transmitting path comprises a first transmitting circuit, a three-pole three-throw switch and a first antenna set which are sequentially connected; the first antenna group comprises a first antenna, a second antenna, a third antenna and a fourth antenna;
the first receiving path comprises a first receiving circuit, the three-pole three-throw switch and the first antenna set which are connected in sequence;
the second receiving path comprises a second receiving circuit, the three-pole three-throw switch and the first antenna set which are connected in sequence;
the second transmitting path comprises a second transmitting circuit, a double-pole double-throw switch and a second antenna group which are sequentially connected; the second antenna group includes the third antenna and the fourth antenna;
the third receiving path comprises a third receiving circuit, the double-pole double-throw switch and the second antenna group which are connected in sequence;
the fourth receiving path includes a fourth receiving circuit and the first antenna connected in sequence.
2. The radio frequency circuit according to claim 1, wherein the first transmitting circuit comprises a first amplifier, a first single-pole double-throw switch and a first filter connected in sequence; the first filter is connected with the three-pole three-throw switch;
the first receiving circuit comprises a second amplifier, the first single-pole double-throw switch and the first filter which are connected in sequence;
the second receiving circuit comprises a third amplifier and a second filter which are connected in sequence; the second filter is connected with the three-pole three-throw switch;
the second transmitting circuit comprises a fourth amplifier, a second single-pole double-throw switch and a third filter which are connected in sequence; the third filter is connected with the double-pole double-throw switch;
the third receiving circuit comprises a fifth amplifier, the second single-pole double-throw switch and the third filter which are connected in sequence;
the fourth receiving circuit comprises a sixth amplifier, a fourth filter and a third single-pole double-throw switch which are connected in sequence; the third single pole double throw switch is connected to the first antenna.
3. The radio frequency circuit of claim 2, wherein the three-pole, three-throw switch is connected to the first antenna through the third single-pole, two-throw switch;
the three-pole three-throw switch is connected to the third antenna and the fourth antenna through the two-pole three-throw switch.
4. The radio frequency circuit according to claim 3, wherein the signal received by the transceiver is transmitted to the first antenna, the second antenna, the third antenna, or the fourth antenna through the first transmission path.
5. The radio frequency circuit according to claim 3, wherein the signal received by the transceiver is transmitted to the first antenna, the second antenna, the third antenna, or the fourth antenna through the first transmission path, and is transmitted to the third antenna or the fourth antenna through the second transmission path.
6. The radio frequency circuit of claim 3,
the signal received by the first antenna is transmitted to the transceiver through the fourth receiving path;
the signal received by the second antenna is transmitted to the transceiver through the first receiving path;
the signal received by the third antenna is transmitted to the transceiver through the second receiving path;
and the signal received by the fourth antenna is transmitted to the transceiver through the third receiving path.
7. The radio frequency circuit of claim 2, wherein the first amplifier and the fourth amplifier are power amplifiers;
the second, third, fifth and sixth amplifiers are low noise amplifiers.
8. An electronic device comprising a radio frequency circuit as claimed in any one of claims 1 to 7.
9. The electronic device of claim 8, wherein in a case that the electronic device supports a transmit-receive-all-through function, a signal received by the transceiver is transmitted to the first antenna, the second antenna, the third antenna, or the fourth antenna through the first transmission path.
10. The electronic device of claim 8, wherein in a case that the electronic device supports a two-way transmission and four-way reception function, a signal received by the transceiver is transmitted to the first antenna, the second antenna, the third antenna, or the fourth antenna through the first transmission path, and is transmitted to the third antenna or the fourth antenna through the second transmission path.
11. The electronic device of claim 8, wherein in a case that the electronic device supports one-way transmit four-way receive function or two-way transmit four-way receive function, the signal received by the first antenna is transmitted to the transceiver through the fourth receive path;
the signal received by the second antenna is transmitted to the transceiver through the first receiving path;
the signal received by the third antenna is transmitted to the transceiver through the second receiving path;
and the signal received by the fourth antenna is transmitted to the transceiver through the third receiving path.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911205832.6A CN110890900A (en) | 2019-11-29 | 2019-11-29 | Radio frequency circuit and electronic equipment |
| PCT/CN2020/132250 WO2021104456A1 (en) | 2019-11-29 | 2020-11-27 | Radio frequency circuit and electronic device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911205832.6A CN110890900A (en) | 2019-11-29 | 2019-11-29 | Radio frequency circuit and electronic equipment |
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| Publication Number | Publication Date |
|---|---|
| CN110890900A true CN110890900A (en) | 2020-03-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911205832.6A Pending CN110890900A (en) | 2019-11-29 | 2019-11-29 | Radio frequency circuit and electronic equipment |
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|---|---|
| CN (1) | CN110890900A (en) |
| WO (1) | WO2021104456A1 (en) |
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| CN112187297A (en) * | 2020-09-27 | 2021-01-05 | Oppo广东移动通信有限公司 | Radio frequency L-PA Mid device, radio frequency transceiving system and communication equipment |
| CN112398491A (en) * | 2020-11-17 | 2021-02-23 | 维沃移动通信有限公司 | Electronic device |
| CN112886973A (en) * | 2021-01-28 | 2021-06-01 | 维沃移动通信有限公司 | Radio frequency circuit and electronic equipment |
| WO2021104456A1 (en) * | 2019-11-29 | 2021-06-03 | 维沃移动通信有限公司 | Radio frequency circuit and electronic device |
| CN113055042A (en) * | 2021-03-09 | 2021-06-29 | 维沃移动通信有限公司 | Radio frequency circuit and electronic device |
| CN113726359A (en) * | 2020-05-26 | 2021-11-30 | Oppo广东移动通信有限公司 | Radio frequency PA Mid device, radio frequency system and communication equipment |
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| WO2021104456A1 (en) * | 2019-11-29 | 2021-06-03 | 维沃移动通信有限公司 | Radio frequency circuit and electronic device |
| CN113726359A (en) * | 2020-05-26 | 2021-11-30 | Oppo广东移动通信有限公司 | Radio frequency PA Mid device, radio frequency system and communication equipment |
| CN113726359B (en) * | 2020-05-26 | 2023-08-15 | Oppo广东移动通信有限公司 | Radio frequency PA Mid device, radio frequency system and communication equipment |
| CN112187297A (en) * | 2020-09-27 | 2021-01-05 | Oppo广东移动通信有限公司 | Radio frequency L-PA Mid device, radio frequency transceiving system and communication equipment |
| CN112187297B (en) * | 2020-09-27 | 2022-08-09 | Oppo广东移动通信有限公司 | Radio frequency transceiving system and communication device |
| CN115589232A (en) * | 2020-09-27 | 2023-01-10 | Oppo广东移动通信有限公司 | Radio frequency L-PA Mid device, radio frequency transceiving system and communication equipment |
| CN112398491A (en) * | 2020-11-17 | 2021-02-23 | 维沃移动通信有限公司 | Electronic device |
| CN112886973A (en) * | 2021-01-28 | 2021-06-01 | 维沃移动通信有限公司 | Radio frequency circuit and electronic equipment |
| CN112886973B (en) * | 2021-01-28 | 2022-08-26 | 维沃移动通信有限公司 | Radio frequency circuit and electronic equipment |
| CN113055042A (en) * | 2021-03-09 | 2021-06-29 | 维沃移动通信有限公司 | Radio frequency circuit and electronic device |
| CN115529849A (en) * | 2021-04-25 | 2022-12-27 | 华为技术有限公司 | Switching circuit, communication device, and terminal device |
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