CN108075844A - Radio frequency reflection ripple detection device, wireless telecommunication system and antenna condition detection method - Google Patents
Radio frequency reflection ripple detection device, wireless telecommunication system and antenna condition detection method Download PDFInfo
- Publication number
- CN108075844A CN108075844A CN201611013720.7A CN201611013720A CN108075844A CN 108075844 A CN108075844 A CN 108075844A CN 201611013720 A CN201611013720 A CN 201611013720A CN 108075844 A CN108075844 A CN 108075844A
- Authority
- CN
- China
- Prior art keywords
- port
- coupler
- radio
- antenna
- power detector
- 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
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/10—Monitoring; Testing of transmitters
- H04B17/15—Performance testing
- H04B17/17—Detection of non-compliance or faulty performance, e.g. response deviations
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/20—Monitoring; Testing of receivers
- H04B17/29—Performance testing
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
- H04W88/02—Terminal devices
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Monitoring And Testing Of Transmission In General (AREA)
Abstract
The invention discloses a kind of radio frequency reflection ripple detection device, wireless telecommunication system and antenna condition detection method, including：Power detector and coupler；Wherein, the first port incoming radio frequency signal in coupler straight-through port, second port connect detected member corresponding with the coupler；Single port in the coupler coupling port is connected with the power detector, for when above-mentioned detected member generates reflection wave signal, giving the reflection wave signal coupled transfer to the power detector；Power detector, for detecting the reflection wave signal.The reflection wave signal generated when technical solution of the present invention is by breaking down to antenna is detected; whether the connection status that detection antenna system in advance can be reached is normal; therefore; improve the accuracy of detection antenna failure; and then the link of radio-frequency front-end transceiver can also be effectively protected to avoid due to antenna exception or damaging and bringing communication failure to entire communication system.
Description
Technical field
The present invention relates to wireless communication technique field, more particularly to a kind of radio frequency reflection ripple detection device, wireless telecommunications
System and antenna condition detection method.
Background technology
With the fast development of the communication technology, people are increasingly increasing the demand of mobile terminal data handling capacity, wirelessly
The antenna system of communication products is also more complicated.The antenna (radio-frequency antenna) of communication system is via original a single aerial system
MIMO (Multiple-Input Multiple-Output, MIMO technique) system of multiple-input multiple-output is developed into, it is right
In complex antenna systematic difference, in order to ensure good communication quality, every antenna must possess good radiation characteristic, appoint
The damage or connection of what antenna are abnormal, may all influence whether the normal operation of entire communication system, it is also possible to right
Front radio-frequency link damages.Therefore, it is necessary to the working conditions to antenna to be detected.
Existing detection scheme is at present：In a tested measuring point divider resistance in parallel to ground, by detecting DC voltage
Value judges the connection status of test point.The detection technique can only judge the connection status before detection resistance, can not be real
The actual working state for judging antenna, if antenna end is damaged, it is impossible to normal radiation electromagnetic wave, and at this moment divider resistance
Connection status is also normal, then the voltage detected by this divider resistance is still normal, it is impossible to detect failure, because
This, the detecting system can not comprehensive and accurate detection antenna whether working condition normal and echo of radio frequency link damage
Whether consumption is normal.
Therefore, in order to ensure the normal operation of mimo antenna system, avoid the occurrence of due to antenna exception or damage to whole
A communication system brings communication failure, and the link of radio-frequency front-end transceiver is protected, it is necessary to invent a kind of new day
Line detecting method, accurately to detect the working condition of antenna.
The content of the invention
The technical problem to be solved in the present invention is to provide a kind of radio frequency reflection ripple detection device, wireless telecommunication system and antennas
Condition detection method is inaccurate to solve the problems, such as to detect antenna condition in the prior art.
In order to solve the above technical problems, on the one hand, the present invention provides a kind of radio frequency reflection ripple detection device, including：Power
Detector and the coupler consistent with detected member quantity；Wherein,
First port incoming radio frequency signal in coupler straight-through port, second port connect quilt corresponding with the coupler
Detection piece；Single port in the coupler coupling port is connected with the power detector, for being produced in above-mentioned detected member
During raw reflection wave signal, the reflection wave signal coupled transfer is given to the power detector；
Power detector, for detecting the reflection wave signal.
Further, the power detector is integrated in RF transceiver；Alternatively, the power detector is received with radio frequency
The ADC detection interface connections of the analog-digital converter ADC detection interfaces or baseband chip of sender.
Further, the detected member is radio-frequency antenna, and the coupler is directional coupler；Wherein, the orientation coupling
The input port of clutch connects corresponding radio-frequency antenna, the equipment of output port connection transmitting radiofrequency signal one side, coupling
Port is connected with the power detector.
Further, the detected member is radio-frequency antenna, and the coupler is bidirectional coupler；The bidirectional coupler leads to
Double-point double-throw switch is crossed to connect with the power detector；
Wherein, the first port incoming radio frequency signal in the bidirectional coupler straight-through port, second port connects and it
Corresponding radio-frequency antenna；The positive coupling port of the bidirectional coupler, reverse coupled port respectively with the double-pole double throw
Switch connection, the opposite side of the double-point double-throw switch respectively with power detector and be connected；It is described forward direction coupling port be
When referring to the radiofrequency signal and being transferred to radio-frequency antenna through the bidirectional coupler, the radiofrequency signal coupled transfer is given to the power
The port of detector；The reverse coupled port refers to the reflection wave signal that the radio-frequency antenna generates passing through the bidirectional couple
Device coupled transfer gives the port of the power detector.
Further, described device further includes：
Single pole multiple throw, wherein, hilted broadsword one side connects the power detector, throws each interface connection of one side more
One directional coupler.
Further, described device further includes：
The single-pole double-throw switch (SPDT) consistent with the coupler quantity, wherein hilted broadsword one side connect the coupler, double-throw one
Side connects the radio-frequency antenna and spare radio-frequency antenna respectively.
On the other hand, the present invention also provides a kind of wireless communication system, including：RF transceiver, RF front-end circuit,
Match circuit between base band control system, antenna system and each several part, the wireless communication system further include radio frequency reflection ripple
Detection device, described device include：Power detector and coupler；Wherein,
First port incoming radio frequency signal in the coupler straight-through port, second port connection are corresponding with the coupler
Radio-frequency antenna；Single port in the coupler coupling port is connected with the power detector, in above-mentioned radio frequency day
When line generates reflection wave signal, the reflection wave signal coupled transfer is given to the power detector；
Power detector, for detecting the reflection wave signal, and by the base band control system according to the back wave
Signal judges the operating status of the radio-frequency antenna.
Further, the power detector is integrated in RF transceiver；Alternatively, the power detector is received with radio frequency
The ADC detection interface connections of the analog-digital converter ADC detection interfaces or baseband chip of sender.
Further, the coupler is directional coupler；Wherein, the input port connection of the directional coupler is right with it
The radio-frequency antenna answered, the equipment of output port connection transmitting radiofrequency signal one side, coupling port are connected with the power detector.
Further, the coupler is bidirectional coupler；The bidirectional coupler passes through double-point double-throw switch and the work(
Rate detector connects；
Wherein, the first port incoming radio frequency signal in the bidirectional coupler straight-through port, second port connects and it
Corresponding radio-frequency antenna；The positive coupling port of the bidirectional coupler, reverse coupled port respectively with the double-pole double throw
Switch connection, the opposite side of the double-point double-throw switch respectively with power detector and be connected；It is described forward direction coupling port be
When referring to the radiofrequency signal and being transferred to radio-frequency antenna through the bidirectional coupler, the radiofrequency signal coupled transfer is given to the power
The port of detector；The reverse coupled port refers to the reflection wave signal that the radio-frequency antenna generates passing through the bidirectional couple
Device coupled transfer gives the port of the power detector.
Further, described device further includes：
The interface of single pole multiple throw, wherein hilted broadsword one side connects the power detector, each for more throwing one side connects
Mouth one directional coupler of connection.
Further, described device further includes：
The single-pole double-throw switch (SPDT) consistent with the coupler quantity, wherein, hilted broadsword one side connects the coupler, double-throw one
Side connects the radio-frequency antenna and spare radio-frequency antenna respectively.
In another aspect, the present invention also provides a kind of detection method of antenna condition, including：
Send radiofrequency signal, the radiofrequency signal by coupler transfer to radio-frequency antenna,
Reflection wave signal is detected using power detector, and determines the shape of the radio-frequency antenna according to testing result
State；Wherein, the reflection wave signal is generated by the radio-frequency antenna when radiating the radiofrequency signal, passes through the coupling of coupler
Port coupled transfer gives the power detector.
Further, the state of the radio-frequency antenna is determined according to testing result, is specifically included：
When detecting the reflection wave signal, the radio-frequency antenna abnormal state is judged；It is described anti-when not detecting
During ejected wave signal, judge that the radio-frequency antenna state is normal.
Further, when the radio-frequency antenna abnormal state, switch the radio-frequency antenna, spare radio-frequency antenna is accessed
Wireless communication system.
The present invention has the beneficial effect that：
The reflection wave signal generated when technical solution of the present invention is by breaking down to antenna is detected, and can be reached pre-
Whether normal first detect the connection status of antenna system, this improves the accuracy of detection antenna failure, and then can be to avoid
Due to antenna exception or damage and bring communication failure to entire communication system, it can also to the link of radio-frequency front-end transceiver
It is effectively protected.
Description of the drawings
Fig. 1 is a kind of structure diagram of radio frequency reflection ripple detection device in the embodiment of the present invention；
Fig. 2 is the structure diagram of bidirectional coupler in the embodiment of the present invention；
Fig. 3 is the structure diagram of the wireless telecommunication system of the embodiment of the present invention one；
Fig. 4 is the radiofrequency signal flow graph of one communication system of embodiment of the present invention normal work；
Fig. 5 is the radiofrequency signal flow graph that the embodiment of the present invention one carries out Antenna Operation exception during antenna detection；
Fig. 6 is the structure diagram of the wireless telecommunication system of the embodiment of the present invention two；
Fig. 7 is the structure diagram of the wireless telecommunication system of the embodiment of the present invention three；
Fig. 8 is the structure diagram of the wireless telecommunication system of the embodiment of the present invention four.
Specific embodiment
Below in conjunction with attached drawing and embodiment, the present invention will be described in further detail.It is it should be appreciated that described herein
Specific embodiment be only used to explain the present invention, limit the present invention.
The present invention devises a kind of radio frequency reflection ripple detection device, by using coupler detection antenna (radio-frequency antenna)
Echo-signal (reflection wave signal) judges whether the working condition of antenna is normal.Occur opening a way when antenna and radio frequency link or
When abnormal conditions, total reflection wave energy (reflection wave signal) is detected and reports caused by antenna, then should for short circuit
Failure antenna is switched to emergency antenna, to ensure normal communication state.Said program can ensure communication system in certain root day
Line still can be with normal communication in the case of being abnormal, and avoiding can not the next unnecessary damage of communication band when emergency occurs
It loses.
As shown in Figure 1, the present embodiments relate to a kind of radio frequency reflection ripple detection device, including：Power detector 102,
And the coupler 101 consistent with 103 quantity of detected member (Fig. 1 shows the schematic diagram for only detecting a detected member, for
Multiple detected members, as long as each detected member is connected to power detector by a coupler)；Wherein,
Coupler 101 includes 1,2,3,4 four port, and port 1,3 is the straight-through port interconnected, and port 4 is port 3
Coupling port, port 2 for cut-off port；
1 incoming radio frequency signal of port of coupler 101, the connection of port 3 and 101 corresponding detected member 103 of coupler；Coupling
It closes port 4 to be connected with power detector 102, for when detected member 103 generates reflection wave signal, reflection wave signal to be coupled
It is transferred to power detector 102；Power detector 102 is used to detect reflection wave signal.
The course of work is as follows：Radiofrequency signal is transferred to detected member 103, quilt from 1 input coupler 101 of port from port 3
Detection piece 103 carries out radio-frequency radiation to radiofrequency signal, and when detected member 103 is working properly, radiofrequency signal is radiated, will not
Generate reflection wave signal；When detected member 103 breaks down, detected member 103 can generate the ejected wave that is all-trans (reflection wave signal),
Reflection wave signal is passed to coupler 101 by port 3, and reflection wave signal is by 4 coupled transfer of port to power detector 102；
Power detector 102 detects reflection wave signal, and then may determine that detected member 103 breaks down.
One of application scenarios of above-mentioned radio frequency reflection ripple detection device are applied among wireless communication system, specifically such as
Under：
Wireless communication system includes：RF transceiver (rf chip), RF front-end circuit, the inspection of radio frequency reflection ripple
Survey device, antenna system and base band control system.
Wherein, RF transceiver is for emitting and receiving radiofrequency signal, and sends base band control to by down coversion conversion
System processed.The power detector of radio frequency reflection ripple detection device can be integrated in RF transceiver, power detector (work(
Rate detecting system) for being responsible for the reflection wave signal of detection antenna system, and then whether just to judge the working condition of antenna system
Often, furthermore it is also possible to for detecting the transmission power situation of radio-frequency front-end link, so as to complete the function of close-loop power control.
RF front-end circuit includes：Wave filter, radio-frequency power amplifier, duplexer and duplexer (radio frequency) and right
The match circuit between each link is answered, RF front-end circuit is responsible for filtering, amplification, radiation and the reception transmission of entire radiofrequency signal
Work.
Radio frequency reflection ripple detection device includes bidirectional coupler, (Double Pole Double Throw, double-pole are double by DPDT
Throw) switch, wherein, the structure diagram of bidirectional coupler is as shown in Fig. 2, port 1,3 is the straight-through port interconnected, 2,4
Coupling port, 4 be 3 coupling path, and 2 be 1 coupling path, between port 2 and 3, between 1 and 4 and between 2 and 4
Isolation.When radiofrequency signal is inputted by port 1, and port 3 exports, the coupling of port 2 output radiofrequency signal, port 4 is ended；Work as reflection
Ripple signal is inputted by port 3, and when port 1 exports, port 4 couples output reflection ripple signal, and port 2 is ended.Therefore, by port 2
Positive coupling port is defined as, when referring to that radiofrequency signal is transferred to radio-frequency antenna through the bidirectional coupler, radiofrequency signal is coupled
It is transferred to the port of the power detector.Port 4 is defined as reverse coupled port, refers to the reflection for generating radio-frequency antenna
Ripple signal is by the bidirectional coupler coupled transfer to the port of power detector.Based on said structure, bidirectional coupler is being penetrated
When frequency link works normally, it is responsible for emit signal coupled transfer to power detecting system, and then realizes that rf chip (is penetrated
Frequency transceiver) close-loop power control.When carrying out antenna condition detection, bidirectional coupler is responsible for detecting the back wave of antenna
Signal, and reflection wave signal coupled transfer is judged anti-to the power detecting system of rf chip by power detecting system
Ejected wave signal whether there is, and then judge whether antenna system work is normal.DPDT switches are responsible for power switched detecting system
Direction is connected, when radio frequency system works normally, DPDT switchs tangential transmission power coupled link circuit, ensures rf chip
Power detection and close-loop power control function.When base band control system issues antenna detection instruction, power detection system
The DPDT of system leading portion switchs tangential antenna-reflected ripple detection link, ensures the power detecting system of rf chip to antenna end
Reflected energy (reflection wave signal) measure, so as to complete the detection function of antenna-reflected ripple signal.
Antenna system includes：All radio-frequency antennas (hereinafter referred to as antenna), the match circuit of radio-frequency antenna of communication system
It is switched with SP2T (Single Pole Double Throw, single-pole double throw microwave switch), antenna is used for the radiation of radiofrequency signal
With reception signal, SP2T switches are responsible for the common switching between antenna and emergency antenna of control, are commonly using the situation of antenna damage
Lower switching causes emergency antenna to ensure system normal communication.
Base band control system includes：Baseband chip, power management chip and storage chip.Base band control system is responsible for whole
The power supply control of a communication system, data storage and Digital Signal Processing etc..
Based on above system, the Antenna Operation state-detection workflow of the embodiment of the present invention is as follows：
The first step：It opens power supply and carries out each several part self-test, base band control system, which issues, carries out the soft of antenna-reflected ripple detection
Part instructs, and the DPDT switchings of base band control system control power detecting system cause the coupling electricity of antenna-reflected ripple signal detection
Road prepares the reflection wave signal of detection antenna；
Second step：Rf chip emit fixed RF frequency radiofrequency signal, radiofrequency signal by power amplifier,
Duplexer, duplexer, bidirectional coupler and SP2T switches reach antenna end；
3rd step：If Antenna Operation is good, radiofrequency signal is gone out by aerial radiation, and antenna end does not have reflected signal to pass through
Bidirectional coupler reaches the power detecting system inside rf chip.If antenna damaged or loose contact etc. therefore
Barrier, causes antenna end the ejected wave that is all-trans occur, then this reflection wave signal feeds back to the work(of rf chip by bidirectional coupler
Rate detecting system；
4th step：After the power detecting system of rf chip receives reflection wave signal, base band control system is reported to,
It is abnormal that base band control system judges that antenna system occurs, and the SP2T for issuing antenna switching command to antenna system is switched, and will be damaged
Or abnormal antenna switches to emergency antenna, so as to ensure that radio-frequency communication is normal.
Specific embodiment is given below, with the present invention will be described in detail technical solution.
Embodiment one
As seen in figures 3-5, the wireless telecommunication system of one embodiment of the invention, including：Base band control system, radio frequency are received
Send out chip (RF transceiver), RF front-end circuit and radio frequency reflection ripple detection device.RF front-end circuit is put including power
Big device, wherein duplexer (or wave filter), duplexer (radio frequency), duplexer are used for FDD (Frequency Division
Duplexing, frequency division duplex) under operating mode, wave filter is used for TDD (Time Division Duplexing, time division duplex)
Under operating mode, duplexer is used to select the switching between the radio frequency operation link of different operating frequency range.This schematic diagram provides
The example of two radio frequency links, an access is FDD, another access is TDD, and a usual communication system includes multiple penetrate
Frequency link can support the work of FDD and tdd mode simultaneously.Between duplexer and antenna be provided with bidirectional coupler and
The RF switch of SP2T, wherein bidirectional coupler have two parts function.It is double when communication system is in normal communication operating mode
It is used as the close-loop power control coupler of radio frequency link to coupler, the power of transmitting link is responsible for be coupled back into radio-frequency receiving-transmitting core
The power detecting system of piece, and then complete close-loop power control.When control system issues the detection instruction of antenna-reflected ripple,
Bidirectional coupler is responsible for returning the reflection wave signal coupled transfer of antenna the power detecting system of rf chip, and then ensures
Power detecting system completes the detection to antenna-reflected electric wave and judges the working condition of antenna.Close to the SP2T switches 1 of antenna
For switching common antenna and emergency antenna, when detecting system determines that antenna is abnormal, base band control system issues antenna
Antenna system is switched to emergency antenna, to ensure the normal work of communication system by switching command to SP2T switches 1 by common antenna
Make.DPDT switches between bidirectional coupler and power detecting system are responsible for the reception signal of power switched detecting system
Content.
Below in conjunction with the accompanying drawings 5, the workflow of the antenna-reflected ripple detecting system of the present embodiment is described in detail.When base band control
When system processed issues antenna detection instruction, wireless telecommunication system stops communication work, and DPDT switches are coupled from transmission power control
Link switching to antenna-reflected wave power detects link.Rf chip selects the frequency that a front radio-frequency link can be supported
Section, emits the radiofrequency signal of a normal range of operation, and transmitting signal (radiofrequency signal) is put by the radio-frequency power of corresponding frequency band
Big device is amplified, and common antenna is reached by duplexer.If Antenna Operation is normal, transmission power is arrived by aerial radiation
Space, antenna-reflected power are almost 0, i.e., no power is detected by bidirectional coupler coupled transfer to antenna-reflected wave power
Link, at this time the power detecting system in rf chip do not receive signal.Therefore rf chip is reported to base band
Control system, antenna system is working properly, need not carry out antenna switching action, and detection terminates.If Antenna Operation is abnormal,
Transmission power cannot be radiated by antenna system, and the ejected wave that is all-trans is detected by bidirectional coupler coupled transfer to antenna-reflected wave power
Link detects link transmission to the power detecting system in rf chip by antenna-reflected wave power.Power detection system
After system receives antenna-reflected ripple signal, rf chip is reported to base band control system, and base band control system judges day
Linear system system operation irregularity issues antenna switching command and carries out antenna switching to SP2T switches 1, cut by the common antenna of operation irregularity
Emergency antenna is changed to, to ensure that communication system can normally work, detection terminates.
Embodiment two
Embodiment one is that the reflected energy of antenna is detected by bidirectional coupler and power detecting system, and then is judged
The working condition of antenna system, rf chip is integrated with power detecting system in the technical solution, and in practical application,
There is portion radio frequency transceiving chip there is no integrated power detecting system, at this time, it is necessary to individually power detection device be selected to complete work(
Rate detection function, it is specific as follows：
As shown in fig. 6, rf chip does not have integrated power detecting system, it is necessary to increase a power detector, it is complete
The detection of paired radio frequency reflection ripple and signal conversion, power detector can be connected to rf chip or baseband chip
ADC (Analog to digital converter, analog-digital converter) detects interface.The present embodiment technical solution remaining
Part is identical with embodiment one, therefore, repeats no more.
Embodiment three
In embodiment one, radio-frequency power can not also do closed-loop control, and power detecting system only completes radio frequency reflection ripple letter
Number detection and be reported to rf chip or base band control system, therefore, as shown in fig. 7, in embodiment one
In scheme, the DPDT switches of power detecting system leading portion can remove, and simultaneously bi-directionally coupler makes directional coupler into, only completes
The reflection wave signal coupled transfer function of antenna end, rest part is identical with embodiment one, therefore, repeats no more.
In addition, the technical solution of above-mentioned several embodiments is also applied for the detection of multiaerial system.As shown in fig. 6, it only needs
Antenna front ends are detected on every road increases coupler, increases SPXT (hilted broadsword is thrown more) switch to detection in power detecting system leading portion
Antenna port make choice switching.What Fig. 8 was provided is the structure diagram of two-way antenna detection, those skilled in the art
According to Fig. 8 and word of the present invention, the detection scheme of multiple radio-frequency antennas can be obviously obtained completely.
The technical solution of above-mentioned several embodiments can be used for the back wave detection of the radio-frequency communication link of non-antenna class
Function, as long as directional coupler to be positioned over to the front end of detected member, by the coupling port of directional coupler reflection wave energy
Amount feeds back to power detecting system.
The reflection wave signal generated when technical solution of the present invention is by breaking down to antenna is detected, and can be reached pre-
First detect whether the connection status of antenna system is normal, and this improves the accuracy of detection antenna failure；Go out in common antenna
When now abnormal, emergency antenna system can be switched in time, and then ensure communication system normal work, so can to avoid due to
Antenna exception is damaged and brings communication failure to entire communication system, and the link of radio-frequency front-end transceiver can also be carried out
It is effectively protected.
Although for example purpose, the preferred embodiment of the present invention is had been disclosed for, those skilled in the art will recognize
Various improvement, increase and substitution are also possible, and therefore, the scope of the present invention should be not limited to above-described embodiment.
Claims (12)
1. a kind of radio frequency reflection ripple detection device, which is characterized in that including：Power detector and coupler；Wherein,
First port incoming radio frequency signal in coupler straight-through port, second port connection is corresponding with the coupler to be detected
Part；Single port in the coupler coupling port is connected with the power detector, anti-for being generated in above-mentioned detected member
During ejected wave signal, the reflection wave signal coupled transfer is given to the power detector；
Power detector, for detecting the reflection wave signal.
2. radio frequency reflection ripple detection device as described in claim 1, which is characterized in that the power detector is integrated in radio frequency
In transceiver；Alternatively, the analog-digital converter ADC of the power detector and RF transceiver detection interfaces or base
The ADC detection interface connections of microarray strip.
3. radio frequency reflection ripple detection device as claimed in claim 2, which is characterized in that the detected member is radio-frequency antenna,
The coupler is directional coupler；Wherein, the input port of the directional coupler connects corresponding radio-frequency antenna, defeated
The equipment of exit port connection transmitting radiofrequency signal one side, coupling port are connected with the power detector.
4. radio frequency reflection ripple detection device as claimed in claim 2, which is characterized in that the detected member is radio-frequency antenna,
The coupler is bidirectional coupler；The bidirectional coupler is connected by double-point double-throw switch with the power detector；
Wherein, the first port incoming radio frequency signal in the bidirectional coupler straight-through port, second port connection are corresponding
Radio-frequency antenna；The positive coupling port of the bidirectional coupler, reverse coupled port connect respectively with the double-point double-throw switch
Connect, the opposite side of the double-point double-throw switch respectively with power detector and be connected；The forward direction coupling port refers to described
When radiofrequency signal is transferred to radio-frequency antenna through the bidirectional coupler, the radiofrequency signal coupled transfer is given to the power detector
Port；The reverse coupled port refers to couple the reflection wave signal that the radio-frequency antenna generates by the bidirectional coupler
It is transferred to the port of the power detector.
5. radio frequency reflection ripple detection device as claimed in claim 3, which is characterized in that described device further includes：
Single pole multiple throw, wherein, hilted broadsword one side connects the power detector, each interface for more throwing one side connects one
Directional coupler.
6. the radio frequency reflection ripple detection device as described in claim 3 or 4, which is characterized in that described device further includes：
The single-pole double-throw switch (SPDT) consistent with the coupler quantity, wherein hilted broadsword one side connect the coupler, double-throw one side point
The radio-frequency antenna and spare radio-frequency antenna are not connected.
7. a kind of wireless communication system, including：RF transceiver, RF front-end circuit, base band control system, antenna system and
Match circuit between each several part, which is characterized in that the wireless communication system further includes radio frequency reflection ripple detection device, described
Device includes：Power detector and coupler；Wherein,
First port incoming radio frequency signal in the coupler straight-through port, second port connection is corresponding with the coupler to penetrate
Frequency antenna；Single port in the coupler coupling port is connected with the power detector, for being produced in said radio-frequency antenna
During raw reflection wave signal, the reflection wave signal coupled transfer is given to the power detector；
Power detector, for detecting the reflection wave signal, and by the base band control system according to the reflection wave signal
The operating status of the radio-frequency antenna is judged.
8. wireless communication system as claimed in claim 7, which is characterized in that the coupler is directional coupler；Wherein, institute
The input port for stating directional coupler connects corresponding radio-frequency antenna, and output port connection transmitting radiofrequency signal one side is set
Standby, coupling port is connected with the power detector.
9. wireless communication system as claimed in claim 7, which is characterized in that the coupler is bidirectional coupler；It is described double
It is connected to coupler by double-point double-throw switch with the power detector；
Wherein, the first port incoming radio frequency signal in the bidirectional coupler straight-through port, second port connection are corresponding
Radio-frequency antenna；The positive coupling port of the bidirectional coupler, reverse coupled port connect respectively with the double-point double-throw switch
Connect, the opposite side of the double-point double-throw switch respectively with power detector and be connected；The forward direction coupling port refers to described
When radiofrequency signal is transferred to radio-frequency antenna through the bidirectional coupler, the radiofrequency signal coupled transfer is given to the power detector
Port；The reverse coupled port refers to couple the reflection wave signal that the radio-frequency antenna generates by the bidirectional coupler
It is transferred to the port of the power detector.
10. a kind of detection method of antenna condition, which is characterized in that including：
Send radiofrequency signal, the radiofrequency signal by coupler transfer to radio-frequency antenna,
Reflection wave signal is detected using power detector, and determines the state of the radio-frequency antenna according to testing result；
Wherein, the reflection wave signal is generated by the radio-frequency antenna when radiating the radiofrequency signal, passes through the coupled end of coupler
Mouth coupled transfer gives the power detector.
11. the detection method of antenna condition as claimed in claim 10, which is characterized in that determine described penetrate according to testing result
The state of frequency antenna, specifically includes：
When detecting the reflection wave signal, the radio-frequency antenna abnormal state is judged；When not detecting the back wave
During signal, judge that the radio-frequency antenna state is normal.
12. the detection method of antenna condition as claimed in claim 11, which is characterized in that when the radio-frequency antenna abnormal state
When, switch the radio-frequency antenna, by spare radio-frequency antenna access to wireless communication system.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611013720.7A CN108075844A (en) | 2016-11-17 | 2016-11-17 | Radio frequency reflection ripple detection device, wireless telecommunication system and antenna condition detection method |
| PCT/CN2017/109584 WO2018090847A1 (en) | 2016-11-17 | 2017-11-06 | Radio frequency reflection wave detection device, wireless communication system and antenna state detection method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611013720.7A CN108075844A (en) | 2016-11-17 | 2016-11-17 | Radio frequency reflection ripple detection device, wireless telecommunication system and antenna condition detection method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108075844A true CN108075844A (en) | 2018-05-25 |
Family
ID=62145220
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611013720.7A Pending CN108075844A (en) | 2016-11-17 | 2016-11-17 | Radio frequency reflection ripple detection device, wireless telecommunication system and antenna condition detection method |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN108075844A (en) |
| WO (1) | WO2018090847A1 (en) |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109756243A (en) * | 2018-12-27 | 2019-05-14 | 深圳市有方科技股份有限公司 | Antenna detection device and antenna detection method |
| CN110212877A (en) * | 2019-05-31 | 2019-09-06 | 维沃移动通信有限公司 | A kind of circuit control method, electronic equipment and radio circuit |
| CN110446247A (en) * | 2019-07-04 | 2019-11-12 | 维沃移动通信有限公司 | Signal control circuit, method and terminal device |
| CN110492951A (en) * | 2019-08-02 | 2019-11-22 | Oppo（重庆）智能科技有限公司 | A kind of RF FEEDBACK detection circuit, antenna module and electronic equipment |
| CN110824333A (en) * | 2018-08-14 | 2020-02-21 | 恩智浦美国有限公司 | Embedded test circuit and method thereof |
| CN111181661A (en) * | 2020-01-17 | 2020-05-19 | 深圳市资福医疗技术有限公司 | Method for detecting antenna connection state |
| CN112034377A (en) * | 2020-08-27 | 2020-12-04 | 国家电网有限公司 | Detection device for reflected wave power of high-frequency power supply and use method thereof |
| CN112367127A (en) * | 2020-10-26 | 2021-02-12 | 维沃移动通信有限公司 | Antenna detection circuit, electronic device, and antenna control method |
| CN113285770A (en) * | 2021-05-12 | 2021-08-20 | 展讯通信（上海）有限公司 | Antenna state detection method, device, system, electronic equipment and storage medium |
| WO2021169596A1 (en) * | 2020-02-27 | 2021-09-02 | 深圳光峰科技股份有限公司 | Radio frequency link working state measurement method, related measurement apparatus, and system |
| CN113708852A (en) * | 2020-05-21 | 2021-11-26 | 华为技术有限公司 | Antenna in-situ detection method and device |
| CN114844520A (en) * | 2022-04-18 | 2022-08-02 | Oppo广东移动通信有限公司 | Radio frequency system and SAR value regulation and control method |
| CN116996135A (en) * | 2023-09-27 | 2023-11-03 | 荣耀终端有限公司 | Path configuration device, method, readable medium and apparatus for radio frequency conduction test |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114124130B (en) * | 2021-08-25 | 2023-09-26 | 闻泰通讯股份有限公司 | Radio frequency receiving and transmitting system, radio frequency channel detection method and terminal equipment |
| CN114222013A (en) * | 2021-12-08 | 2022-03-22 | 广东明创软件科技有限公司 | Electronic device and control method of electronic device |
| CN114978233A (en) * | 2022-05-11 | 2022-08-30 | 江苏艾科半导体有限公司 | Spread spectrum device and spread spectrum method based on NOVA radio frequency test platform |
| CN116054967B (en) * | 2023-03-31 | 2023-11-10 | 荣耀终端有限公司 | Power detection circuit and method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1211892A (en) * | 1997-07-10 | 1999-03-24 | Lg情报通信株式会社 | Apparatus and method for measuring voltage standing wave radio in antenna of base station |
| CN102246419A (en) * | 2008-12-15 | 2011-11-16 | 日本电气株式会社 | Power detection circuit, transmitter, and power detection method |
| US9166551B2 (en) * | 2010-08-02 | 2015-10-20 | Lg Innotek Co., Ltd. | Apparatus and method for matching impedance using standing wave ratio information |
| CN105743519A (en) * | 2016-04-07 | 2016-07-06 | 锐迪科微电子（上海）有限公司 | Radio frequency transmitting circuit, bidirectional coupler and directional coupler |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06296168A (en) * | 1993-04-08 | 1994-10-21 | Sony Corp | Radio transmitter |
| JP3088321B2 (en) * | 1997-02-10 | 2000-09-18 | 埼玉日本電気株式会社 | Failure detection method |
| CN101998606B (en) * | 2009-08-25 | 2015-03-25 | 英派尔科技开发有限公司 | Antenna transmission power monitoring and/or control |
| CN101998452B (en) * | 2009-08-25 | 2014-07-16 | 英派尔科技开发有限公司 | Calculating antenna performance |
| CN104270831B (en) * | 2014-09-28 | 2018-04-10 | 福建三元达网络技术有限公司 | A kind of multi-functional LTE wireless network cards |
-
2016
- 2016-11-17 CN CN201611013720.7A patent/CN108075844A/en active Pending
-
2017
- 2017-11-06 WO PCT/CN2017/109584 patent/WO2018090847A1/en active Application Filing
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1211892A (en) * | 1997-07-10 | 1999-03-24 | Lg情报通信株式会社 | Apparatus and method for measuring voltage standing wave radio in antenna of base station |
| CN102246419A (en) * | 2008-12-15 | 2011-11-16 | 日本电气株式会社 | Power detection circuit, transmitter, and power detection method |
| US9166551B2 (en) * | 2010-08-02 | 2015-10-20 | Lg Innotek Co., Ltd. | Apparatus and method for matching impedance using standing wave ratio information |
| CN105743519A (en) * | 2016-04-07 | 2016-07-06 | 锐迪科微电子（上海）有限公司 | Radio frequency transmitting circuit, bidirectional coupler and directional coupler |
Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110824333A (en) * | 2018-08-14 | 2020-02-21 | 恩智浦美国有限公司 | Embedded test circuit and method thereof |
| CN110824333B (en) * | 2018-08-14 | 2024-03-15 | 恩智浦美国有限公司 | Embedded test circuit and method thereof |
| CN109756243A (en) * | 2018-12-27 | 2019-05-14 | 深圳市有方科技股份有限公司 | Antenna detection device and antenna detection method |
| CN110212877B (en) * | 2019-05-31 | 2024-01-05 | 维沃移动通信有限公司 | Circuit control method, electronic equipment and radio frequency circuit |
| CN110212877A (en) * | 2019-05-31 | 2019-09-06 | 维沃移动通信有限公司 | A kind of circuit control method, electronic equipment and radio circuit |
| CN110446247A (en) * | 2019-07-04 | 2019-11-12 | 维沃移动通信有限公司 | Signal control circuit, method and terminal device |
| CN110492951A (en) * | 2019-08-02 | 2019-11-22 | Oppo（重庆）智能科技有限公司 | A kind of RF FEEDBACK detection circuit, antenna module and electronic equipment |
| CN110492951B (en) * | 2019-08-02 | 2021-11-09 | Oppo（重庆）智能科技有限公司 | Radio frequency feedback detection circuit, antenna assembly and electronic equipment |
| CN111181661A (en) * | 2020-01-17 | 2020-05-19 | 深圳市资福医疗技术有限公司 | Method for detecting antenna connection state |
| WO2021169596A1 (en) * | 2020-02-27 | 2021-09-02 | 深圳光峰科技股份有限公司 | Radio frequency link working state measurement method, related measurement apparatus, and system |
| CN113708852A (en) * | 2020-05-21 | 2021-11-26 | 华为技术有限公司 | Antenna in-situ detection method and device |
| CN113708852B (en) * | 2020-05-21 | 2022-11-11 | 华为技术有限公司 | Antenna in-situ detection method and device |
| CN112034377A (en) * | 2020-08-27 | 2020-12-04 | 国家电网有限公司 | Detection device for reflected wave power of high-frequency power supply and use method thereof |
| CN112367127A (en) * | 2020-10-26 | 2021-02-12 | 维沃移动通信有限公司 | Antenna detection circuit, electronic device, and antenna control method |
| CN113285770A (en) * | 2021-05-12 | 2021-08-20 | 展讯通信（上海）有限公司 | Antenna state detection method, device, system, electronic equipment and storage medium |
| CN114844520A (en) * | 2022-04-18 | 2022-08-02 | Oppo广东移动通信有限公司 | Radio frequency system and SAR value regulation and control method |
| CN116996135B (en) * | 2023-09-27 | 2023-12-26 | 荣耀终端有限公司 | Path configuration device, method, readable medium and apparatus for radio frequency conduction test |
| CN116996135A (en) * | 2023-09-27 | 2023-11-03 | 荣耀终端有限公司 | Path configuration device, method, readable medium and apparatus for radio frequency conduction test |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2018090847A1 (en) | 2018-05-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108075844A (en) | Radio frequency reflection ripple detection device, wireless telecommunication system and antenna condition detection method | |
| CN105703053B (en) | A kind of antenna switching method and terminal | |
| CN101426219B (en) | Detection method for TD-SCDMA multichannel radio frequency remote unit antenna system | |
| US20180124706A1 (en) | Interface device providing power management and load termination in distributed antenna system | |
| CN103874116B (en) | The method of multisystem mixing platform and its detection leakage cable fault point | |
| CN108387878B (en) | Automatic test device and method for phased array radar TR component | |
| CN102340363A (en) | Device and method for detecting signal of transmission and reception | |
| CN106209282A (en) | Radio circuit and terminal | |
| CN102565582B (en) | Test device of radio frequency identification equipment | |
| CN106912069B (en) | Distributed antenna system remote terminal and uplink signal link detection method and device thereof | |
| EP3195504B1 (en) | Monitoring system for a distributed antenna system | |
| US11496229B2 (en) | Antenna detection using antenna return loss | |
| CN109687913A (en) | Wireless communication unit diagnosis | |
| EP3323089B1 (en) | System for determining the layout and absolute and relative positions of elements in a distributed antenna system and for use of the elements for measurement | |
| CN107294557A (en) | The RF front-end circuit and complete-machine coupling method of testing of mobile terminal | |
| CN106941374B (en) | A kind of switching system and method for visible light communication and power line communication | |
| CN108761413B (en) | Radio frequency switch protection device and method for high-power RCS test | |
| CN105052085A (en) | System and method for testing a data packet signal transceiver | |
| CN203225773U (en) | Antenna feed system standing wave detection device | |
| EP3323087B1 (en) | System for characterizing a passive antenna network and elements in a distributed antenna system | |
| KR100531619B1 (en) | Apparatus and method of receiving sensitivity measuring for communication system with receiving only path | |
| CN103236870A (en) | High-isolation circuit with LNA (low-noise amplifier) and method for improving isolation | |
| KR100729341B1 (en) | Apparatus for selecting rf signalpath | |
| EP4122124B1 (en) | Time-division duplex (tdd) antenna system | |
| EP3844898B1 (en) | Time-division duplex (tdd) antenna system |
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 | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180525 |