CN210609164U - Radio frequency control circuit and electronic equipment - Google Patents
Radio frequency control circuit and electronic equipment Download PDFInfo
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- CN210609164U CN210609164U CN202020040310.7U CN202020040310U CN210609164U CN 210609164 U CN210609164 U CN 210609164U CN 202020040310 U CN202020040310 U CN 202020040310U CN 210609164 U CN210609164 U CN 210609164U
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Abstract
The utility model provides a radio frequency control circuit and electronic equipment, radio frequency control circuit specifically includes: the antenna comprises a transceiver, two first signal transceiving paths, two second signal transceiving paths, two first signal receiving paths, two second signal receiving paths, a first switch, two second switches and a plurality of antennas; the transceiver is respectively connected with the first signal transceiving channel, the second signal transceiving channel, the first signal receiving channel and the second signal receiving channel; one end of the first switch is respectively connected with the first signal transceiving path and the second signal transceiving path, and the other end of the first switch is connected with the antenna; one end of each second switch is connected with one first signal receiving path and one second signal receiving path respectively, and the other end of each second switch is connected with one antenna. In the embodiment of the utility model provides an in, radio frequency control circuit's simple structure, insertion loss is little.
Description
Technical Field
The utility model relates to the field of communication technology, especially, relate to a radio frequency control circuit and electronic equipment.
Background
With the development of communication technology, the communication demand of users for electronic devices is higher and higher. A fifth generation mobile communication network (5G) electronic device has a very high data transmission rate and a very low time delay, and thus can meet the needs of various application scenarios, and is receiving wide attention of users.
Since the rf control circuit of the 5G electronic device needs to be used for transmitting signals with Multiple operating frequencies, and the operating frequency of the signals is often high, for each operating frequency signal, the rf control circuit needs to adopt a Multiple-Input Multiple-Output (MIMO) technology to improve communication quality, that is, a plurality of transmitting antennas and receiving antennas are respectively used at the transmitting end and the receiving end, so that the signals are transmitted and received through the plurality of antennas at the transmitting end and the receiving end. Therefore, in the rf control circuit at the front end of the 5G electronic device, it is generally necessary to provide a plurality of antennas and a plurality of antenna paths, and to provide a plurality of switches between the plurality of antennas and the transceiver to control the on/off switching of the antenna paths. That is, in the existing rf control circuit, the number of antennas and switches is often large.
However, when the number of antennas and switches in the rf control circuit is large, the structure of the rf control circuit is complex and the cost is high, and the insertion loss of the antenna path is easily increased, which may reduce the signal transmission quality of the rf control circuit.
SUMMERY OF THE UTILITY MODEL
In order to solve the problem that the existing radio frequency control circuit structure is complicated and the insertion loss is large, the utility model provides a radio frequency control circuit and an electronic device.
In order to solve the above problem, in a first aspect, the utility model discloses a radio frequency control circuit, include: the antenna comprises a transceiver, two first signal transceiving paths, two second signal transceiving paths, two first signal receiving paths, two second signal receiving paths, a first switch, two second switches and a plurality of antennas; wherein the content of the first and second substances,
the transceiver is respectively connected with the two first signal transceiving paths, the two second signal transceiving paths, the two first signal receiving paths and the two second signal receiving paths;
one end of the first switch is connected with the two first signal transceiving paths and the two second signal transceiving paths respectively, and the other end of the first switch is connected with the two antennas;
one end of each second switch is respectively connected with one first signal receiving path and one second signal receiving path, and the other end of each second switch is connected with one antenna
In a second aspect, the present invention also discloses an electronic device, including: the radio frequency control circuit.
The utility model discloses a following advantage:
in the embodiment of the present invention, the rf control circuit can be used to transmit the rf signals of two different frequencies of the first signal and the second signal, and implement the MIMO function. One end of a first switch is respectively connected with the two first signal transceiving paths and the two second signal transceiving paths, and the other end of the first switch is connected with the two antennas; and one end of each second switch is respectively connected with a first signal receiving path and a second signal receiving path, and the other end of each second switch is connected with one antenna, so that the paths of the first signal and the second signal can share the antenna, the first switch and the second switch, thereby reducing the number of the antennas and the switches in the radio frequency control circuit, simplifying the structure of the radio frequency control circuit, reducing the cost of the radio frequency control circuit, reducing the insertion loss of each path and improving the signal transmission quality of the radio frequency control circuit.
Drawings
Fig. 1 is a schematic structural diagram of a radio frequency control circuit according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a first switch according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a first signal transceiving path according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a first signal receiving path according to an embodiment of the present invention.
Detailed Description
In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention is described in detail with reference to the accompanying drawings and the detailed description.
Referring to fig. 1, a schematic structural diagram of a radio frequency control circuit according to an embodiment of the present invention is shown, and as shown in fig. 1, the radio frequency control circuit may specifically include: a transceiver 10, two first signal transceiving paths 11, two second signal transceiving paths 12, two first signal receiving paths 13, two second signal receiving paths 14, a first switch 15, two second switches 16, and a plurality of antennas 17.
The transceiver 10 is connected to two first signal transmission/reception paths 11, two second signal transmission/reception paths 12, two first signal reception paths 13, and two second signal reception paths 14, respectively.
One end of the first switch 15 is connected to the two first signal transmission/reception paths 11 and the two second signal transmission/reception paths 15, respectively, and the other end of the first switch 15 is connected to the two antennas 17.
One end of each second switch 16 is connected to one first signal receiving path 13 and one second signal receiving path 14, respectively, and the other end of each second switch 16 is connected to one antenna 17.
In practical applications, the first signal and the second signal may be signals of two different frequency bands, for example, the first signal and the second signal may be signals of an N78 frequency band and an N79 frequency band in an NR frequency band. Of course, the first signal and the second signal may also be signals in other frequency bands, for example, the first signal and the second signal may also be signals in N80, N81, N83 or other frequency bands, the embodiment of the present invention is described by taking only the first signal as an N78 frequency band signal (hereinafter, referred to as N78), the second signal as an N79 frequency band signal (hereinafter, referred to as N79) as an example, and the other frequency band signals may be executed by referring to the examples.
Accordingly, the first signal transceiving path 11 may be an N78 transceiving path, that is, the first signal transceiving path 11 is a common transmitting path and a common receiving path, and may be a transmitting path and a receiving path of N78, and the first signal receiving path 13 may be a receiving path of N78. Similarly, the second signal transceiving path 12 may be an N79 transceiving path, that is, the second signal transceiving path 12 is a common transmitting path and a common receiving path, and may be used as the transmitting path and the receiving path of N79, and the second signal receiving path 14 may be used as the receiving path of N79.
As shown in fig. 1, the first signal transceiving path 11 and the second signal transceiving path 12 can be switched to all antennas 17 through the first switch 15 and the second switch 16, so as to implement a Sounding Reference Signal (SRS) fast switching function, and also can implement a 2T4R (2 transmission paths and 4 reception paths) or a 1T4R (1 transmission path and 4 reception paths) function, thereby implementing an MIMO function and improving signal transmission quality.
For example, when performing N78 transmission, two first signal transceiving paths 11 and two first signal receiving paths 13 can be conducted by the switching action of the first switch 15 and the second switch 16, since the first signal transceiving path 11 can be used as the transmitting path and the receiving path of N78, and the first signal receiving path 13 can be used as the receiving path of N78, the radio frequency control circuit has two transmitting paths of N78 and 4 receiving paths of N78, so as to implement SRS (2T4R) function, and since the radio frequency control circuit has 4 receiving paths of N78, it can also implement MIMO function, and improve the signal transmission quality.
In the embodiment of the present invention, one end of the first switch 15 is connected to the two first signal transceiving paths 11 and the two second signal transceiving paths 12, respectively, and the other end of the first switch 15 is connected to the two antennas 17; one end of each second switch 16 is connected with a first signal receiving path 13 and a second signal receiving path 14, and the other end of each second switch 16 is connected with an antenna 17, so that the paths of the first signal and the second signal can share the antenna 17, the first switch 15 and the second switch 16, thus the number of antennas and switches in the radio frequency control circuit can be reduced, the structure of the radio frequency control circuit is simplified, the cost of the radio frequency control circuit is reduced, the insertion loss of each path can be reduced, and the signal transmission quality of the radio frequency control circuit is improved.
In practical application, the radio frequency control circuit may be used in fourth generation mobile communication network (4 generation mobile networks, 5G) electronic equipment, 5G electronic equipment, or electronic equipment compatible with 4G and 5G networks at the same time, the utility model discloses it is right that the radio frequency control circuit is used the network type of electronic equipment does not limit.
In an optional embodiment of the present invention, the radio frequency control circuit further includes: two combiners 18; one end of each combiner 18 is connected to one first signal transceiving path 11 and one second signal transceiving path 12, and the other end of each combiner 18 is connected to one end of the first switch 15.
In practical application, the combiner 18 may be configured to add two signals, namely, the first signal transceiving path 11 and the second signal transceiving path 12, to one port, and connect the port to one end of the first switch 15, so that the first signal transceiving path 11 and the second signal transceiving path may share one port of the first switch 15, which simplifies the switching operation of the first switch 15 and simplifies the control logic of the radio frequency control circuit.
Referring to fig. 2, which shows a schematic structural diagram of a first switch according to an embodiment of the present invention, as shown in fig. 2, the first switch 15 may include: two first input terminals In _1, In _2, two first output terminals Out _2, Out _3, and two second output terminals Out _1, Out _ 4; the first input end In _1 is connected with the other end of one combiner 18, and the first input end In _2 is connected with the other end of the other combiner 18; the first output terminals Out _2, Out _3 are respectively connected with an antenna 17; the second output terminal Out _1 is connected to one end of one second switch 16, and the second output terminal Out _4 is connected to one end of another second switch 16.
As shown In fig. 2, In the first switch 15, the first output terminals In _1 and In _2 may be connected to any one of the first output terminals Out _2 and Out _3 or any one of the second output terminals Out _1 and Out _4, so as to implement the SRS function.
Alternatively, the first switch 15 may be a double-pole four-throw switch, and since the double-pole four-throw switch has the advantages of simple structure, reliable performance, and low cost, in the case that the first switch 15 is a double-pole four-throw switch, the first switch 15 can be made to have the advantages of simple structure, reliable performance, and low cost.
Alternatively, the second switch 16 may include: a second input terminal, a third input terminal, a fourth input terminal, and a third output terminal; wherein the second input terminal is connected to a first signal receiving path 13; said third input terminal is connected to a second signal receiving path 14; the fourth input end is connected with a second output end Out _1 or Out _ 4; the third output is connected to an antenna 17.
In practical applications, in the case where the second input terminal of the second switch 16 is connected to the third output terminal, the first signal receiving path 13 is turned on to perform the reception of N78. In the case where the third input terminal and the third output terminal of the second switch 16 are connected, the second signal path 14 is turned on to perform the reception of N79.
Alternatively, the second switch 16 may be a single-pole three-throw switch, and since the single-pole three-throw switch has the advantages of simple structure, reliable performance, and low cost, in the case that the second switch 16 is a single-pole three-throw switch, the second switch 16 may accordingly have the advantages of simple structure, reliable performance, and low cost.
Alternatively, the plurality of antennas 17 may include: a first antenna 171, a second antenna 172, a third antenna 173, and a fourth antenna 174; the second antenna 172 is connected to the first output terminal Out _2 of the first switch 15, and the third antenna 173 is connected to the first output terminal Out _3 of the first switch 15; the first antenna 171 and the fourth antenna 174 are connected to a third output terminal of the second switch 16, respectively.
In practical applications, the first antenna 171, the second antenna 172, the third antenna 173, and the fourth antenna 174 may all be used as receiving antennas and/or transmitting antennas of N78 and N79, and the embodiment of the present invention is not limited to specific types of the first antenna 171, the second antenna 172, the third antenna 173, and the fourth antenna 174.
Referring to fig. 3, which shows a schematic structural diagram of a first signal transceiving path according to an embodiment of the present invention, as shown in fig. 3, the first signal transceiving path 11 may include: the transceiver 10 is connected to the first amplifier 111 and the second amplifier 112, respectively, one end of the third switch 113 is connected to the first amplifier 111 and the second amplifier 112, the other end of the third switch 113 is connected to one end of the first filter 114, and the other end of the first filter 114 is connected to one end of the first switch 15.
In practical applications, the first signal transceiving path 11 may be provided with a receiving sub-path a and a transmitting sub-path B, where the receiving sub-path a may be used as a receiving path of N78, and the transmitting sub-path B may be used as a transmitting path of N78, that is, the first signal transceiving path 11 is a common path of the transmitting path and the receiving path.
Specifically, a first amplifier 111 is disposed on the receiving sub-path a for amplifying the signal on the receiving sub-path a, and a second amplifier 112 is disposed on the transmitting sub-path B for amplifying the signal on the transmitting sub-path B. The third switch 113 may be a selective switch, and when the third switch 113 controls the first amplifier 111 and the first filter 114 to be turned on, the reception sub-path a is turned on, and at this time, the first signal transmission/reception path 11 may perform reception of N78; in the case where the third switch 113 controls the second amplifier 112 and the first filter 114 to be turned on, the transmission sub-path B is turned on, and at this time, the first signal transmission/reception path 11 can perform transmission of N79. The first filter 114 may be used to filter out noise on the first signal transceiving path 11, so as to improve the signal transmission quality on the first signal transceiving path 11.
Optionally, the third switch 113 may be a single-pole double-throw switch, and since the single-pole double-throw switch has advantages of simple structure, reliable performance, and low cost, in the case that the third switch 113 is a single-pole double-throw switch, the third switch 113 may be made to have advantages of simple structure, reliable performance, and low cost.
Optionally, the second signal transceiving path 12 comprises: the transceiver 10 is respectively connected with the third amplifier and the fourth amplifier, one end of the fourth switch is connected with the third amplifier and the fourth amplifier, the other end of the fourth switch is connected with one end of the second filter, and the other end of the second filter is connected with one end of the first switch 15.
It is understood that the structure and implementation process of the second signal transceiving path 12 are similar to those of the first signal transceiving path 11 shown in fig. 3, and are not described herein again.
Referring to fig. 4, which shows a schematic structural diagram of a first signal receiving path according to an embodiment of the present invention, as shown in fig. 4, a fifth amplifier 131 and a third filter 132 are sequentially disposed on the first signal receiving path 13, one end of the fifth amplifier 131 is connected to the transceiver 10, the other end of the fifth amplifier 132 is connected to one end of the third filter 132, and the other end of the third filter 132 is connected to one end of the second switch 16.
In practical applications, the fifth amplifier 131 may be used to amplify the signal on the first signal receiving path 13, and the third filter 132 may be used to filter out the noise on the first signal receiving path 13, so as to improve the signal transmission quality on the first signal receiving path 13.
Alternatively, a sixth amplifier and a fourth filter may be sequentially disposed on the second signal receiving path 14, one end of the sixth amplifier is connected to the transceiver 10, the other end of the sixth amplifier is connected to one end of the fourth filter, and the other end of the fourth filter is connected to one end of the second switch 16.
It is understood that the structure and implementation process of the second signal receiving path 14 are similar to those of the first signal transceiving path 13 shown in fig. 4, and are not described in detail herein.
Specific examples of the radio frequency control circuit implementing SRS (2T4R) and MIMO functions are provided below:
specifically, N78 may be taken as an example. When the N78 is performing SRS, a signal transmitted by the transceiver 10 may be transmitted to the combiner 18 through the transmission sub-paths B on the two first signal transceiving paths 11, and may be transmitted to the two first input terminals In _1 and In _2 of the first switch 15 through the combiner 18, where the first input terminals In _1 and In _2 may be connected to the two first output terminals Out _2 and Out _3, and any one of the two second output terminals Out _1 and Out _ 4.
For example, the first input terminal In _1 may be connected to the first output terminal Out _2, and the first input terminal In _2 may be connected to the first output terminal Out _3, that is, the two first signal transceiving paths 11 may be respectively conducted to the second antenna 172 and the third antenna 173, forming two receiving paths of N78 and two transmitting paths of N78.
When the SRS is performed by the N78, the second input terminal and the third output terminal of each second switch 16 may be connected to conduct the first signal receiving path 13, so as to form two receiving paths of N78, thereby completing the SRS function of N78.
Therefore, after the SRS (2T4R) is completed by N78, four N78 receive paths and two N78 transmit paths can be formed, thereby implementing the MIMO function.
It can be understood that the implementation process of the SRS (2T4R) and the MIMO function of N79 may refer to the specific implementation process of N78, and is not described herein again.
Specific examples of the radio frequency control circuit implementing SRS (1T4R) and MIMO functions are provided below:
specifically, N78 may be taken as an example. When the N78 is performing SRS, a signal transmitted by the transceiver 10 may be transmitted to the combiner 18 through the transmission sub-path B on one first transceiving path 13 of the two first transceiving paths 11, and transmitted to the first input terminal In _1 or the first output terminal In _2 of the first switch 15 through the combiner 18, wherein the first input terminals In _1 and In _2 may be connected to the two first output terminals Out _2 and Out _3, and any one of the two second output terminals Out _1 and Out _ 4.
For example, the first input terminal In _1 may be connected to the first output terminal Out _2, and the first input terminal In _2 may be connected to the first output terminal Out _3, that is, the two first signal transceiving paths 11 may be respectively conducted to the second antenna 172 and the third antenna 173, forming two receiving paths of N78 and one transmitting path of N78.
When the SRS is performed by the N78, the second input terminal and the third output terminal of each second switch 16 may be connected to conduct the first signal receiving path 13, so as to form two receiving paths of N78, thereby completing the SRS function of N78.
Therefore, after the SRS (1T4R) is completed by N78, four N78 receive paths and one N78 transmit path may be formed, implementing MIMO functionality.
It should be noted that, since the SRS (1T4R) function only needs one transmission path, in practical applications, one of the two first signal transceiving paths 11 may be replaced by the first signal receiving path, so as to reduce the cost of the radio frequency control circuit.
In practical applications, the SRS (1T4R) and MIMO functions of N79 may be implemented by referring to the specific implementation process of N78, which is not described herein.
To sum up, the embodiment of the present invention provides a radio frequency control circuit including following advantage at least:
in the embodiment of the present invention, the rf control circuit can be used to transmit the rf signals of two different frequencies of the first signal and the second signal, and implement the MIMO function. One end of a first switch is respectively connected with the two first signal transceiving paths and the two second signal transceiving paths, and the other end of the first switch is connected with the two antennas; and one end of each second switch is respectively connected with a first signal receiving path and a second signal receiving path, and the other end of each second switch is connected with one antenna, so that the paths of the first signal and the second signal can share the antenna, the first switch and the second switch, thereby reducing the number of the antennas and the switches in the radio frequency control circuit, simplifying the structure of the radio frequency control circuit, reducing the cost of the radio frequency control circuit, reducing the insertion loss of each path and improving the signal transmission quality of the radio frequency control circuit.
The embodiment of the utility model provides an electronic equipment is still provided, electronic equipment specifically can include: in the above radio frequency control circuit, the radio frequency control circuit may be configured to perform transceiving control of a radio frequency signal. Specifically, electronic equipment can be any one in cell-phone, electronic equipment and the wearable equipment, the embodiment of the utility model provides a to electronic equipment's type can not do specifically and restrict.
Finally, it should also be noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or terminal 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 terminal. 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 terminal that comprises the element.
The radio frequency control circuit and the electronic device provided by the present invention are introduced in detail, and the principle and the implementation of the present invention are explained by applying specific examples, and the descriptions of the above embodiments are only used to help understand the method and the core idea of the present invention; meanwhile, for the general technical personnel in the field, according to the idea of the present invention, there are changes in the specific implementation and application scope, to sum up, the content of the present specification should not be understood as the limitation of the present invention.
Claims (10)
1. A radio frequency control circuit, comprising: the antenna comprises a transceiver, two first signal transceiving paths, two second signal transceiving paths, two first signal receiving paths, two second signal receiving paths, a first switch, two second switches and a plurality of antennas; wherein the content of the first and second substances,
the transceiver is respectively connected with the two first signal transceiving paths, the two second signal transceiving paths, the two first signal receiving paths and the two second signal receiving paths;
one end of the first switch is connected with the two first signal transceiving paths and the two second signal transceiving paths respectively, and the other end of the first switch is connected with the two antennas;
one end of each second switch is connected with one first signal receiving path and one second signal receiving path respectively, and the other end of each second switch is connected with one antenna.
2. The radio frequency control circuit according to claim 1, further comprising: two combiners; wherein the content of the first and second substances,
one end of each combiner is connected with one first signal transceiving path and one second signal transceiving path, and the other end of each combiner is connected with one end of the first switch.
3. The radio frequency control circuit of claim 2, wherein the first switch comprises: two first input terminals, two first output terminals, and two second output terminals; wherein the content of the first and second substances,
each first input end is connected with the other end of one combiner;
each of the first output terminals is connected to one of the antennas;
each of the second output terminals is connected to one end of one of the second switches.
4. The radio frequency control circuit of claim 3, wherein the first switch is a double-pole, four-throw switch.
5. The radio frequency control circuit of claim 3, wherein the second switch comprises: a second input terminal, a third input terminal, a fourth input terminal, and a third output terminal; wherein the content of the first and second substances,
said second input terminal is connected to one of said first signal receiving paths;
said third input terminal is connected to one of said second signal receiving paths;
the fourth input terminal is connected with one of the second output terminals;
the third output is connected to one of the antennas.
6. The RF control circuit of claim 5, wherein the second switch is a single-pole-three-throw switch.
7. The radio frequency control circuit of claim 6, wherein the plurality of antennas comprise: a first antenna, a second antenna, a third antenna, and a fourth antenna; wherein the content of the first and second substances,
the second antenna is connected with one first output end, and the third antenna is connected with the other first output end;
the first antenna and the fourth antenna are respectively connected with one third output end.
8. The radio frequency control circuit of claim 1,
the first signal transceiving path comprises: the transceiver is respectively connected with the first amplifier and the second amplifier, one end of the third switch is connected with the first amplifier and the second amplifier, the other end of the third switch is connected with one end of the first filter, and the other end of the first filter is connected with one end of the first switch;
the second signal transceiving path comprises: the transceiver respectively with the third amplifier the fourth amplifier is connected, the one end of fourth switch with the third amplifier the fourth amplifier is connected, the other end of fourth switch with the one end of second filter is connected, the other end of second filter with the one end of first switch is connected.
9. The radio frequency control circuit according to claim 1, wherein a fifth amplifier and a third filter are sequentially disposed on the first signal receiving path, one end of the fifth amplifier is connected to the transceiver, the other end of the fifth amplifier is connected to one end of the third filter, and the other end of the third filter is connected to one end of the second switch;
a sixth amplifier and a fourth filter are sequentially arranged on the second signal receiving path, one end of the sixth amplifier is connected with the transceiver, the other end of the sixth amplifier is connected with one end of the fourth filter, and the other end of the fourth filter is connected with one end of the second switch.
10. An electronic device, comprising: the radio frequency control circuit of any one of claims 1 to 9.
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| CN202020040310.7U CN210609164U (en) | 2020-01-08 | 2020-01-08 | Radio frequency control circuit and electronic equipment |
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| CN202020040310.7U CN210609164U (en) | 2020-01-08 | 2020-01-08 | Radio frequency control circuit and electronic equipment |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111756388A (en) * | 2020-06-28 | 2020-10-09 | 维沃移动通信有限公司 | Radio frequency circuit and electronic equipment |
| 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 |
-
2020
- 2020-01-08 CN CN202020040310.7U patent/CN210609164U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN111756388A (en) * | 2020-06-28 | 2020-10-09 | 维沃移动通信有限公司 | Radio frequency circuit and electronic equipment |
| WO2022001746A1 (en) * | 2020-06-28 | 2022-01-06 | 维沃移动通信有限公司 | Radio frequency circuit and electronic device |
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