CN111669199A - Power detection circuit and electronic equipment - Google Patents
Power detection circuit and electronic equipment Download PDFInfo
- Publication number
- CN111669199A CN111669199A CN202010511395.7A CN202010511395A CN111669199A CN 111669199 A CN111669199 A CN 111669199A CN 202010511395 A CN202010511395 A CN 202010511395A CN 111669199 A CN111669199 A CN 111669199A
- Authority
- CN
- China
- Prior art keywords
- electrically connected
- antennas
- switch module
- power detection
- radio frequency
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- 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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/10—Monitoring; Testing of transmitters
- H04B17/101—Monitoring; Testing of transmitters for measurement of specific parameters of the transmitter or components thereof
- H04B17/102—Power radiated at antenna
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Transceivers (AREA)
Abstract
The application provides a power detection circuit and electronic equipment, this power detection circuit includes: k radio frequency transceiving modules are electrically connected with the radio frequency transceiver; the K radio frequency transceiver modules are respectively electrically connected with K first ports of the first switch module; the second port of the first switch module is electrically connected with the first end of the directional coupler, the third port of the first switch module is electrically connected with the N second antennas, and the first switch module can be switched among a plurality of states so as to enable any first port to be electrically connected with the second port or electrically connected with the third port; the second end of the directional coupler is electrically connected with the M first antennas through the second switch module, and the third end of the directional coupler is electrically connected with the radio frequency transceiver; the transmitting power of the antennas in the N second antennas can be determined according to the transmitting power of the antennas in the M first antennas and a preset insertion loss value; K. m and N are positive integers, and K is greater than 1. This can reduce the design cost of the power detection circuit.
Description
Technical Field
The present application relates to the field of communications technologies, and in particular, to a power detection circuit and an electronic device.
Background
At present, the power detection method of the antenna generally couples to the power detection module of the radio frequency transceiver through the directional coupler, different powers are converted into different ADC values, and then the corresponding relationship between the power and the ADC values is written to the electronic device, so that the electronic device realizes the calling of different power levels. For example, for 2T4R which is a frequency band, two rf transceiver modules are required, and each rf transceiver module needs to be provided with a directional coupler to implement power detection of the rf transceiver module; in the case of multiple frequency bands 2T4R, each rf transceiver module needs to have a directional coupler to implement power detection.
Therefore, the power detection scheme of the existing antenna structure has the problem of high design cost.
Disclosure of Invention
The embodiment of the application provides a power detection circuit and electronic equipment, and the problem that the design cost is high in the power detection scheme of the conventional antenna structure can be solved.
In order to solve the above technical problem, the present application is implemented as follows:
in a first aspect, an embodiment of the present application provides a power detection circuit, which is applied to an electronic device, and the power detection circuit includes: the system comprises a radio frequency transceiver, K radio frequency transceiver modules, a first switch module, a second switch module, a directional coupler, M first antennas and N second antennas;
the radio frequency transceiver comprises K transmitting ports and K receiving ports, the K transmitting ports are respectively and electrically connected with the K radio frequency transceiver modules, and the K receiving ports are respectively and electrically connected with the K radio frequency transceiver modules;
the K radio frequency transceiver modules are respectively electrically connected with K first ports of the first switch module;
a second port of the first switch module is electrically connected with a first end of the directional coupler, a third port of the first switch module is electrically connected with the N second antennas, and the first switch module can be switched among a plurality of states so as to enable any one of the first ports to be electrically connected with the second port or electrically connected with the third port;
the second end of the directional coupler is electrically connected with the M first antennas through the second switch module, and the third end of the directional coupler is electrically connected with the radio frequency transceiver;
wherein the transmission power of the antennas in the M first antennas may be determined based on the directional coupler, and the transmission power of the antennas in the N second antennas may be determined according to the transmission power of the antennas in the M first antennas and a preset insertion loss value; K. m and N are positive integers, and K is greater than 1.
In a second aspect, an embodiment of the present application further provides an electronic device, which includes the above power detection circuit.
In this embodiment of the present application, the transmission power of an antenna in M first antennas may be determined based on the directional coupler, and further, when the transmission power of an antenna in M first antennas is determined by the directional coupler, the transmission power of a specific antenna in N second antennas may be determined based on a preset insertion loss value of a signal transmitted by the first antenna compared with a signal transmitted by a specific antenna in N second antennas, so as to implement detection of the transmission power of a signal at each antenna by using one directional coupler and ensure accuracy of transmission power detection; and only one directional coupler is needed to be arranged, so that compared with the arrangement of one directional coupler corresponding to each radio frequency transceiver module, the arrangement number of the directional couplers can be effectively saved, and the design cost of the power detection circuit is reduced.
Drawings
FIG. 1 is a block diagram of a power detection circuit according to an embodiment of the present disclosure;
fig. 2 is a structural diagram of a radio frequency transceiver module according to an embodiment of the present application;
fig. 3 is a second block diagram of a power detection circuit according to an embodiment of the present disclosure;
fig. 4 is a third block diagram of a power detection circuit according to an embodiment of the present disclosure;
fig. 5 is a flowchart of a power detection method provided in an embodiment of the present application.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some, but not all, embodiments of the present application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
The terms first, second and the like in the description and in the claims of the present application are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application are capable of operation in sequences other than those illustrated or described herein. In addition, "and/or" in the specification and claims means at least one of connected objects, a character "/" generally means that a preceding and succeeding related objects are in an "or" relationship.
As shown in fig. 1, an embodiment of the present application provides a power detection circuit applied to an electronic device, where the power detection circuit includes: the radio frequency transceiver comprises a radio frequency transceiver 10, K radio frequency transceiver modules 20, a first switch module 30, a second switch module 40, a directional coupler 50, M first antennas 60 and N second antennas 70;
the radio frequency transceiver 10 includes K transmitting ports and K receiving ports, the K transmitting ports are electrically connected to the K radio frequency transceiver modules 20 respectively, and the K receiving ports are electrically connected to the K radio frequency transceiver modules 20 respectively;
the K rf transceiver modules 20 are electrically connected to the K first ports 31 of the first switch module 30, respectively;
the second port 32 of the first switch module 30 is electrically connected to the first end of the directional coupler 50, the third port 33 of the first switch module 30 is electrically connected to the N second antennas 70, and the first switch module 30 can be switched between a plurality of states, so that any one of the first ports 31 is electrically connected to the second port 32 or to the third port 33;
a second end of the directional coupler 50 is electrically connected to the M first antennas 60 through the second switch module 40, and a third end of the directional coupler 50 is electrically connected to the radio frequency transceiver 10;
wherein, the transmission power of the antennas in the M first antennas 60 may be determined based on the directional coupler 50, and the transmission power of the antennas in the N second antennas 70 may be determined according to the transmission power of the antennas in the M first antennas 60 and a preset insertion loss value; K. m and N are positive integers, and K is greater than 1.
In the present embodiment, since the difference between the transmission power of the signal at the second antenna 70 and the transmission power of the signal at the first antenna 60 is essentially the difference between the loss of the first line between the second antenna 70 and its corresponding rf transceiver module and the loss of the second line between the first antenna 60 and its corresponding rf transceiver module, and since the difference between the first line and the second line is the difference of the passive loss, the difference between the loss of the first line and the loss of the second line is also determined in the case that the connection mode of the first line and the second line is determined, based on which the transmission power of the signal at the second antenna can be calculated from the transmission power of the signal at the first antenna and the difference between the losses.
In the present application, the first line includes the first switch module 30, the directional coupler 50, the second switch module 40, and the connection feeder line, etc.; the second line includes the first switch module 30 and the connection feeder line, etc.
In this application, the transmission power of the antennas in the M first antennas 60 may be determined based on the directional coupler 50, and further, when the transmission power of the antennas in the M first antennas 60 is determined by the directional coupler 50, the transmission power of the specific antenna in the N second antennas 70 may be determined based on a preset insertion loss value of a signal transmitted by the first antenna compared with a signal transmitted by the specific antenna in the N second antennas 70, so as to implement detection of the transmission power of the signal at each antenna by using one directional coupler 50 and ensure the accuracy of transmission power detection; and because only one directional coupler 50 needs to be arranged, compared with the arrangement of one directional coupler 50 corresponding to each radio frequency transceiver module, the arrangement number of the directional couplers 50 can be effectively saved, and the design cost of the power detection circuit is reduced.
It should be noted that the preset insertion loss value may be determined based on a loss between the first line and the second line, and specifically, the preset insertion loss value may be a loss between the first line and the second line.
For example, the loss of the signal radiated at the antenna ANT3 in the first antenna 60 is 1db greater than the loss of the signal radiated at the antenna ANT4 in the second antenna 70. When a signal is transmitted from the antenna ANT4 and power detection is required, the signal is switched to the antenna ANT3 for detection, the radio frequency transceiver 10 learns that the power level of the radio frequency transceiver 10 meets the requirement of a base station when the current signal is transmitted from the antenna ANT3 according to the power detection value, and the power level of the radio frequency transceiver 10 is increased by 1db to meet the requirement of the base station when the signal is switched back to the antenna ANT4, so that the power detection when the signal is transmitted from the antenna ANT4 is realized.
Wherein the loss of the signal transmitted at the antenna ANT4 is determined according to the difference of the insertion loss of the first line and the second line, for controlling the radio frequency transceiver 10 to change the power level so as to implement power detection when the signal is transmitted at the antenna ANT 4.
When N is greater than 1, the power detection circuit may further include a third switch module 80, and the third port 33 of the first switch module 30 may be electrically connected to the N second antennas 70 through the third switch module 80, so that the corresponding radio frequency transceiver module is electrically connected to the antennas of the second antennas 70, and power detection of each antenna of the corresponding second antennas 70 is implemented.
Optionally, the power detection circuit further includes an attenuation module 91, and the third terminal of the directional coupler 50 may be electrically connected to the radio frequency transceiver 10 through the attenuation module 91, so as to attenuate the signal coupled from the directional coupler 50, and improve the power detection accuracy of the radio frequency signal.
Optionally, the power detection circuit further includes a first rf receiving module 92, one end of the first rf receiving module 92 is electrically connected to the rf transceiver 10, and the other end of the first rf receiving module 92 is electrically connected to the M first antennas 60 through the second switch module 40, so as to transmit the rf signal received by the antenna of the M first antennas 60 to the rf transceiver 10 through the first rf receiving module 92, thereby implementing the transceiving function of the antenna signal; the number of the first rf receiving modules 92 may be the same as the number of the first antennas, that is, M first rf receiving modules 92 may be provided; or only one first rf receiving module 92 may be provided, and the state of the second switch module 40 is switched, so that the rf signals received by the antennas of the M first antennas 60 can be transmitted to the rf transceiver 10 through the first rf receiving module 92, thereby implementing the transceiving function of the antenna signals.
Optionally, the power detection circuit further includes a second radio frequency receiving module 93, one end of the second radio frequency receiving module 93 is electrically connected to the radio frequency transceiver 10, and the other end of the second radio frequency receiving module 93 is electrically connected to the M first antennas 60 through the second switch module 40, so as to implement that the radio frequency signal received by the antenna of the N second antennas 70 is transmitted to the radio frequency transceiver 10 through the second radio frequency receiving module 93, thereby implementing the transceiving function of the antenna signal; the number of the second rf receiving modules 93 may be the same as the number of the second antennas, that is, N second rf receiving modules 93 may be provided; or only one second rf receiving module 93 may be provided, and the state of the third switching module 80 is switched, so that the rf signals received by the antennas of the N second antennas 70 can be transmitted to the rf transceiver 10 through the second rf receiving module 93, thereby implementing the transceiving function of the antenna signals.
The directional coupler 50 and the second switch module 40 can be disposed in the same integrated circuit, so as to reduce the layout space required by the directional coupler 50 and the second switch module 40, and further reduce the design cost of the power detection circuit.
As shown in fig. 2, the radio frequency transceiver module 20 includes a low noise amplifier 21, a transmission amplifier 22, a fourth switch module 23 and a filter 24; one end of the low noise amplifier 21 may be electrically connected to the receiving port of the radio frequency transceiver 10, and the other end is electrically connected to the first end of the filter 24 through the fourth switch module 23; one end of the transmission amplifier 22 may be electrically connected to the transmission port of the radio frequency transceiver 10, and the other end is electrically connected to the first end of the filter 24 through the fourth switching module 23; the second terminal of the filter 24 is electrically connected to the first port 31 of the first switch module 30.
Wherein, in the process of transmitting signals by the radio frequency transceiver 10, the fourth switch module 23 is used for electrically connecting the transmission amplifier 22 and the filter 24, and disconnecting the electrical connection between the low noise amplifier 21 and the filter 24; the fourth switch module 23 is used to electrically connect the low noise amplifier 21 and the filter 24 and disconnect the electrical connection between the transmission amplifier 22 and the filter 24 during the signal reception process of the radio frequency transceiver 10.
When K is 4, that is, when the power detection circuit includes 4 rf transceiver modules 20, the first switch module 30 may be a DP4T switch.
In addition, the sum of M and N is generally an integer greater than 3. For example, for the case that the sum of M and N is 4, and when M is 3 and N is 1, the second switch module 40 may be a DP3T switch; when M is 2 and N is 2, the second switch module 40 may be a DPDT switch, and the third switch module 80 may also be a DPDT switch.
It should be noted that the selection of each switch module is related to the value of K, M, N, and when the value of K, M, N changes, the selection of the model of each switch module also changes correspondingly, and the description thereof is omitted here.
The following takes the 2T4R architecture as an example, and the power detection circuit of the present application is specifically described:
as shown in fig. 3, the K rf transceiver modules 20 include a first rf transceiver module, a second rf transceiver module, a third rf transceiver module and a fourth rf transceiver module, where the first rf transceiver module represents N78TRX1, the second rf transceiver module represents N78TRX 2, the third rf transceiver module represents N79TRX1, and the fourth rf transceiver module represents N79TRX 2, and each of the rf transceiver modules is provided with a directional coupler, the M first antennas 60 include antennas ANT1, ANT2 and ANT3, and the N second antennas 70 include antenna ANT 4.
Under the 2T4R architecture, when TX1 transmits at any one of antennas ANT1/2/3, TX2 transmits at antenna ANT 4; conversely, when TX1 transmits at antenna ANT4, TX2 transmits at any one of antennas ANT 1/2/3.
Since the power detection implementation manners of the N78TX 1/TX2 and the N79 TX1/TX2 are not changed, when the first radio frequency transceiver module corresponding to the N78TRX1 is electrically connected with the directional coupler 50 through the first switch module 30, the calibration parameters can be obtained based on the directional coupler 50; similarly, when the second rf transceiver module corresponding to the N78TRX 2 is electrically connected to the directional coupler 50 through the first switch module 30, the calibration parameters may also be obtained based on the directional coupler 50, and the specific correspondence relationship is as follows:
when the antenna ANT1 transmits, the N78TX1 corresponds to N78TX1-NV 1;
when the antenna ANT2 transmits, the N78TX1 corresponds to N78TX1-NV 2;
when the antenna ANT3 transmits, the N78TX1 corresponds to N78TX1-NV 3;
when the antenna ANT4 transmits, the N78TX1 is corresponding to N78TX1-NV1 or 2 or 3+ offset value;
when the antenna ANT1 transmits, the N78TX2 corresponds to N78TX2-NV 1;
when the antenna ANT2 transmits, the N78TX2 corresponds to N78TX2-NV 2;
when the antenna ANT3 transmits, the N78TX2 corresponds to N78TX2-NV 3;
when the antenna ANT4 transmits, the N78TX2 is corresponding to N78TX2-NV1 or 2 or 3+ offset value;
the offset value is a predetermined insertion loss value, which is a difference between the signal transmission of the second antenna 70 and the signal transmission of the first antenna 60.
Since TX1 or TX2 are both transmitted through the directional coupler at antenna ANT1/2/3, calibration parameters can be generated normally.
When a signal is transmitted from the antenna ANT4 and power detection is required, the signal is switched to the antenna ANT3 for detection, the radio frequency transceiver 10 learns that the power level of the radio frequency transceiver 10 meets the requirement of a base station when the current signal is transmitted from the antenna ANT3 according to the power detection value, and the power level of the radio frequency transceiver 10 is increased by 1db to meet the requirement of the base station when the signal is switched back to the antenna ANT4, so that the power detection when the signal is transmitted from the antenna ANT4 is realized.
Wherein, the preset insertion loss value transmitted by the antenna ANT4 is determined according to the difference of the insertion loss of the first line and the second line, and is used for controlling the radio frequency transceiver 10 to change the power level so as to realize the power detection when the signal is transmitted on the antenna ANT 4.
As shown in fig. 4, the K rf transceiver modules 20 include a first rf transceiver module, a second rf transceiver module, a third rf transceiver module and a fourth rf transceiver module, where the first rf transceiver module represents N78TRX1, the second rf transceiver module represents N78TRX 2, the third rf transceiver module represents N79TRX1, and the fourth rf transceiver module represents N79TRX 2, and each of the rf transceiver modules is provided with a directional coupler, the M first antennas 60 include antennas ANT1 and ANT2, and the N second antennas 70 include antennas ANT3 and ANT 4.
Under the 2T4R architecture, when TX1 transmits at any one of antennas ANT1/2, TX2 transmits at antenna ANT 3/4; conversely, when TX1 transmits at antenna ANT3/4, TX2 transmits at any one of antennas ANT 1/2.
Since the power detection implementation manners of the N78TX 1/TX2 and the N79 TX1/TX2 are not changed, when the first radio frequency transceiver module corresponding to the N78TRX1 is electrically connected with the directional coupler 50 through the first switch module 30, the calibration parameters can be obtained based on the directional coupler 50; similarly, when the second rf transceiver module corresponding to the N78TRX 2 is electrically connected to the directional coupler 50 through the first switch module 30, the calibration parameters may also be obtained based on the directional coupler 50, and the specific correspondence relationship is as follows:
when the antenna ANT1 transmits, the N78TX1 corresponds to N78TX1-NV 1;
when the antenna ANT2 transmits, the N78TX1 corresponds to N78TX1-NV 2;
when the antenna ANT3 transmits, the N78TX1 is corresponding to N78TX1-NV1 or 2+ offset value;
when the antenna ANT4 transmits, the N78TX1 is corresponding to N78TX1-NV1 or 2+ offset value;
when the antenna ANT1 transmits, the N78TX2 corresponds to N78TX2-NV 1;
when the antenna ANT2 transmits, the N78TX2 corresponds to N78TX2-NV 2;
when the antenna ANT3 transmits, the N78TX2 is corresponding to N78TX2-NV1 or 2+ offset value;
when the antenna ANT4 transmits, the N78TX2 is corresponding to N78TX2-NV1 or 2+ offset value;
the offset value is a predetermined insertion loss value, which is a difference between the signal transmission of the second antenna 70 and the signal transmission of the first antenna 60.
Since TX1 or TX2 both pass through the directional coupler when transmitting on antenna ANT1/2, calibration parameters can be generated normally.
When a signal is transmitted from the antenna ANT4 and power detection is required, the signal is switched to the antenna ANT2 for detection, the radio frequency transceiver 10 learns that the power level of the radio frequency transceiver 10 meets the requirement of a base station when the current signal is transmitted from the antenna ANT2 according to the power detection value, and the power level of the radio frequency transceiver 10 is increased by 1db to meet the requirement of the base station when the signal is switched back to the antenna ANT4, so that the power detection when the signal is transmitted from the antenna ANT4 is realized.
Wherein, the preset insertion loss value transmitted by the antenna ANT4 is determined according to the difference of the insertion loss of the first line and the second line, and is used for controlling the radio frequency transceiver 10 to change the power level so as to realize the power detection when the signal is transmitted on the antenna ANT 4.
As shown in fig. 5, an embodiment of the present application further provides a power detection method, including the following steps:
and step 501, performing N782T 4R network registration by using the mobile phone.
In the step, if the signal passes through the directional coupler, power detection is directly carried out; if the signal does not pass through the directional coupler, the TX1 is switched to an antenna with the directional coupler for power detection, and the antenna is communicated with a power detection module of a radio frequency transceiver for power detection of the TX 1.
In the step, if the signal passes through the directional coupler, power detection is directly carried out; if the signal does not pass through the directional coupler, the TX2 is switched to an antenna with the directional coupler for power detection, and the antenna is communicated with a power detection module of a radio frequency transceiver for power detection of the TX 2.
And step 512, after the powers of the TX1 and the TX2 are stable, the base station switches to the corresponding radio frequency transceiving module according to the needed TX power change.
It should be noted that, after the power detection is completed, the original antenna is switched to transmit.
In this application, the transmission power of the antennas in the M first antennas 60 may be determined based on the directional coupler 50, and further, when the transmission power of the antennas in the M first antennas 60 is determined by the directional coupler 50, the transmission power of the specific antenna in the N second antennas 70 may be determined based on a preset insertion loss value of a signal transmitted by the first antenna compared with a signal transmitted by the specific antenna in the N second antennas 70, so as to implement detection of the transmission power of the signal at each antenna by using one directional coupler 50 and ensure the accuracy of transmission power detection; and because only one directional coupler 50 needs to be arranged, compared with the arrangement of one directional coupler 50 corresponding to each radio frequency transceiver module, the arrangement number of the directional couplers 50 can be effectively saved, and the design cost of the power detection circuit is reduced.
The embodiment of the application also provides an electronic device which comprises the power detection circuit.
It should be noted that, the implementation manner of the embodiment of the power detection circuit is also applicable to the embodiment of the electronic device, and can achieve the same technical effect, and details are not described herein again.
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 embodiments have been described with reference to the accompanying drawings, it is to be understood that the invention is not limited to the precise embodiments described above, which are meant to be illustrative and not restrictive, and that various changes may be made therein by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (10)
1. A power detection circuit applied to an electronic device, the power detection circuit comprising: the system comprises a radio frequency transceiver, K radio frequency transceiver modules, a first switch module, a second switch module, a directional coupler, M first antennas and N second antennas;
the radio frequency transceiver comprises K transmitting ports and K receiving ports, the K transmitting ports are respectively and electrically connected with the K radio frequency transceiver modules, and the K receiving ports are respectively and electrically connected with the K radio frequency transceiver modules;
the K radio frequency transceiver modules are respectively electrically connected with K first ports of the first switch module;
a second port of the first switch module is electrically connected with a first end of the directional coupler, a third port of the first switch module is electrically connected with the N second antennas, and the first switch module can be switched among a plurality of states so as to enable any one of the first ports to be electrically connected with the second port or electrically connected with the third port;
the second end of the directional coupler is electrically connected with the M first antennas through the second switch module, and the third end of the directional coupler is electrically connected with the radio frequency transceiver;
wherein the transmission power of the antennas in the M first antennas may be determined based on the directional coupler, and the transmission power of the antennas in the N second antennas may be determined according to the transmission power of the antennas in the M first antennas and a preset insertion loss value; K. m and N are positive integers, and K is greater than 1.
2. The power detection circuit of claim 1, further comprising a third switch module, wherein the third port is electrically connected to the N second antennas through the third switch module, if N is greater than 1.
3. The power detection circuit of claim 1, further comprising an attenuation module through which the third end of the directional coupler is electrically connected to the radio frequency transceiver.
4. The power detection circuit of claim 1, further comprising a first rf receiving module, wherein one end of the first rf receiving module is electrically connected to the rf transceiver, and the other end of the first rf receiving module is electrically connected to the M first antennas through the second switch module.
5. The power detection circuit of claim 3, further comprising a second RF receiving module, wherein one end of the second RF receiving module is electrically connected to the RF transceiver, and the other end of the second RF receiving module is electrically connected to the N second antennas through the third switch module.
6. The power detection circuit of claim 1, wherein the sum of M and N is an integer greater than 3.
7. The power detection circuit of claim 6, wherein M is 3, N is 1; alternatively, M is 2 and N is 2.
8. The power detection circuit according to any one of claims 1 to 7, wherein the radio frequency transceiver module comprises a low noise amplifier, a transmission amplifier, a fourth switch module and a filter;
one end of the low-noise amplifier is electrically connected with the receiving port, and the other end of the low-noise amplifier is electrically connected with the first end of the filter through the fourth switch module;
one end of the transmitting amplifier is electrically connected with the transmitting port, and the other end of the transmitting amplifier is electrically connected with the first end of the filter through the fourth switch module;
the second end of the filter is electrically connected to the first port.
9. The power detection circuit of claim 1, wherein the directional coupler and the second switch module are located in a same integrated circuit.
10. An electronic device comprising the power detection circuit of any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010511395.7A CN111669199A (en) | 2020-06-08 | 2020-06-08 | Power detection circuit and electronic equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010511395.7A CN111669199A (en) | 2020-06-08 | 2020-06-08 | Power detection circuit and electronic equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111669199A true CN111669199A (en) | 2020-09-15 |
Family
ID=72385786
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010511395.7A Pending CN111669199A (en) | 2020-06-08 | 2020-06-08 | Power detection circuit and electronic equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111669199A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113055100A (en) * | 2021-03-12 | 2021-06-29 | 维沃移动通信有限公司 | Wi-Fi signal transmission power calibration system, method and device |
| CN113114281A (en) * | 2021-04-23 | 2021-07-13 | 维沃移动通信有限公司 | Radio frequency circuit and electronic equipment |
| CN114124141A (en) * | 2021-11-30 | 2022-03-01 | Oppo广东移动通信有限公司 | Radio frequency system and communication device |
| CN114895102A (en) * | 2022-02-25 | 2022-08-12 | 电子科技大学 | High-isolation input/output stage large dynamic range power detection circuit |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101010829A (en) * | 2004-08-27 | 2007-08-01 | 松下电器产业株式会社 | Antenna switch module |
| CN108832944A (en) * | 2018-05-28 | 2018-11-16 | Oppo广东移动通信有限公司 | Power compensating method, device, terminal device and storage medium |
| CN110190916A (en) * | 2019-04-25 | 2019-08-30 | 维沃移动通信有限公司 | A kind of power-sensing circuit and terminal |
| CN110754118A (en) * | 2017-06-19 | 2020-02-04 | 高通股份有限公司 | Sounding Reference Signal (SRS) transmission protocol |
| WO2020038833A1 (en) * | 2018-08-21 | 2020-02-27 | Telit Communications S.P.A. | System and method for monitoring antenna performance |
| CN110995372A (en) * | 2019-11-30 | 2020-04-10 | 惠州Tcl移动通信有限公司 | Wireless communication terminal, power detection circuit and power calibration method |
-
2020
- 2020-06-08 CN CN202010511395.7A patent/CN111669199A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101010829A (en) * | 2004-08-27 | 2007-08-01 | 松下电器产业株式会社 | Antenna switch module |
| CN110754118A (en) * | 2017-06-19 | 2020-02-04 | 高通股份有限公司 | Sounding Reference Signal (SRS) transmission protocol |
| CN108832944A (en) * | 2018-05-28 | 2018-11-16 | Oppo广东移动通信有限公司 | Power compensating method, device, terminal device and storage medium |
| WO2020038833A1 (en) * | 2018-08-21 | 2020-02-27 | Telit Communications S.P.A. | System and method for monitoring antenna performance |
| CN110190916A (en) * | 2019-04-25 | 2019-08-30 | 维沃移动通信有限公司 | A kind of power-sensing circuit and terminal |
| CN110995372A (en) * | 2019-11-30 | 2020-04-10 | 惠州Tcl移动通信有限公司 | Wireless communication terminal, power detection circuit and power calibration method |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113055100A (en) * | 2021-03-12 | 2021-06-29 | 维沃移动通信有限公司 | Wi-Fi signal transmission power calibration system, method and device |
| CN113114281A (en) * | 2021-04-23 | 2021-07-13 | 维沃移动通信有限公司 | Radio frequency circuit and electronic equipment |
| CN114124141A (en) * | 2021-11-30 | 2022-03-01 | Oppo广东移动通信有限公司 | Radio frequency system and communication device |
| CN114895102A (en) * | 2022-02-25 | 2022-08-12 | 电子科技大学 | High-isolation input/output stage large dynamic range power detection circuit |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| AU2018413673C1 (en) | Multiway switch, radio frequency system, and wireless communication device | |
| EP4220974A1 (en) | Radio frequency l-pa mid device, radio frequency transceiving system, and communication equipment | |
| CN111193526B (en) | Radio frequency system and electronic equipment | |
| AU2018413695B2 (en) | Multi-way switch, radio frequency system, and wireless communication device | |
| CN111669199A (en) | Power detection circuit and electronic equipment | |
| CN111756388B (en) | Radio frequency circuit and electronic equipment | |
| CN111277278B (en) | Radio frequency system and electronic equipment | |
| CN108199725A (en) | Multidiameter option switch and Related product | |
| KR20200087215A (en) | Multi-way switch, radio frequency system and radio communication device | |
| CN111525933B (en) | Radio frequency circuit and electronic equipment | |
| EP4016855A1 (en) | Radio frequency front-end circuit and mobile terminal | |
| CN211606531U (en) | Signal processing circuit and electronic equipment | |
| CN108462507A (en) | Multidiameter option switch, radio frequency system and wireless telecom equipment | |
| EP3540963B1 (en) | Multiway switch, radio frequency system, and wireless communication device | |
| CN212324099U (en) | Radio frequency circuit and electronic device | |
| CN211880379U (en) | Radio frequency receiving module, radio frequency circuit and electronic equipment | |
| CN112398491B (en) | Electronic device | |
| EP1280287A1 (en) | Composite radio apparatus and diversity switching method | |
| CN108599780A (en) | Multidiameter option switch and wireless telecom equipment | |
| US6549760B1 (en) | Communications device | |
| US20090289872A1 (en) | High Power Ultra-Linear TDD Switch | |
| CN113114299B (en) | Radio frequency structure and electronic equipment | |
| CN213484847U (en) | Electronic device | |
| CN219459057U (en) | Radio frequency circuit and electronic equipment | |
| CN111786697A (en) | Antenna control system and electronic equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200915 |