CN108241096A - The test method and device of a kind of phase-shift circuit, phase shifter and radiance - Google Patents
The test method and device of a kind of phase-shift circuit, phase shifter and radiance Download PDFInfo
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- CN108241096A CN108241096A CN201611218249.5A CN201611218249A CN108241096A CN 108241096 A CN108241096 A CN 108241096A CN 201611218249 A CN201611218249 A CN 201611218249A CN 108241096 A CN108241096 A CN 108241096A
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- phase
- receiving channel
- shift circuit
- phase shifter
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R29/00—Arrangements for measuring or indicating electric quantities not covered by groups G01R19/00 - G01R27/00
- G01R29/08—Measuring electromagnetic field characteristics
- G01R29/10—Radiation diagrams of antennas
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Abstract
The embodiment of the invention discloses the test methods and device of a kind of phase-shift circuit, phase shifter and radiance.The phase-shift circuit includes：One phase shifter, main receiving channel and auxiliary receiving channel；The input terminal of the phase shifter is connect with the output terminal in clock signal input source；In the same direction component branch of first output terminal of the phase shifter respectively with the component branch in the same direction of the main receiving channel and the auxiliary receiving channel is connect；Phase-shifted component branch of the second output terminal of the phase shifter respectively with the phase-shifted component branch of the main receiving channel and the auxiliary receiving channel is connect.The test method and device of phase-shift circuit provided in an embodiment of the present invention, phase shifter and radiance, main receiving channel and auxiliary receiving channel share a phase shifter by signal phase shift, the reference signal antenna relative phase of major-minor receiving channel can effectively be avoided to generate ± 180 ° of random overturnings, the test of radiation two-phase method completion radiation receptivity may be used so as to fulfill TD LTE terminals.
Description
Technical field
The present embodiments relate to a kind of mobile communication technical field of measurement and test more particularly to phase-shift circuit, phase shifter and spokes
Penetrate the test method and device of performance.
Background technology
Radiation two-phase method is UMTS Terrestrial radio access network (the Evolved UMTS Terrestrial Radio of evolution
Access Network, E-UTRAN) in the radiation receptivity of multi-antenna user device is carried out testing common test side
Method.
In the prior art, in time-division long term evolution (Time Division Long Term Evolution, TD-LTE) zero
Reference signal antenna relative phase (the Reference Signal Antenna of the major-minor receiving channel of frequency receiver framework
Relative Phase, RSARP) there are ± 180 ° of random rollover characteristics, and it can not similar frequency division duplex long term evolution
(Frequency Division Double Long Term Evolution, FDD-LTE) pattern calculates stable master like that
The reference signal antenna relative phase of auxiliary receiving channel, due to ± 180 ° of TD-LTE receiver reference signal antenna relative phases
Rollover characteristics so that existing TD-LTE terminals can not use radiation two-phase method to complete to radiate the test of receptivity.
Invention content
The embodiment of the present invention provides the test method and device of a kind of phase-shift circuit, phase shifter and radiance so that TD-
The test that radiation two-phase method completes radiation receptivity may be used in LTE terminal.
In a first aspect, an embodiment of the present invention provides a kind of phase-shift circuit, which includes：One phase shifter, master
Receiving channel and auxiliary receiving channel；
The input terminal of the phase shifter is connect with the output terminal in clock signal input source；
First output terminal of the phase shifter respectively with the in-phase component branch of the main receiving channel and the auxiliary reception
The in-phase component branch connection of channel；
The second output terminal of the phase shifter respectively with the phase-shifted component branch of the main receiving channel and the auxiliary reception
The phase-shifted component branch connection of channel.
Further, the output terminal of the phase shifter by frequency mixer and the main receiving channel and described auxiliary connects respectively
Receive channel connection.
Further, the clock signal input source includes sequentially connected frequency divider, frequency synthesizer and predeterminated frequency
Clock source, the input terminal of the phase shifter are connect with the output terminal of the frequency divider.
Further, the predeterminated frequency clock source is 26MHz clock sources.
Further, the phase shifting angle of the phase shifter is 0 degree/90 degree.
Further, the first output terminal of the phase shifter is 0 degree of output terminal；The second output terminal of the phase shifter is 90
Spend output terminal.
Further, the main receiving channel is TD-LTE radio frequency zero intermediate frequency recivers main channel；The auxiliary receiving channel
For TD-LTE radio frequency zero intermediate frequency reciver secondary channels.
Second aspect, the embodiment of the present invention additionally provide a kind of phase shifter, which includes the shifting described in first aspect
Circuitry phase.
The third aspect, the embodiment of the present invention additionally provide a kind of test method of the radiance of phase-shift circuit, the radiation
The test method of performance includes：
Reference signal antenna relative phase RSARP is obtained by the phase-shift circuit；
Based on the reference signal antenna relative phase, radiation receptivity is tested using radiation two-phase method.
Fourth aspect, the embodiment of the present invention additionally provide a kind of test device of the radiance of phase-shift circuit, the radiation
The test device of performance includes：
Relative phase acquisition module, for obtaining reference signal antenna relative phase RSARP by the phase-shift circuit；
Two-phase method test module, for the reference signal antenna phase obtained based on the relative phase acquisition module
To phase, radiation receptivity is tested using radiation two-phase method.
Phase-shift circuit in the embodiment of the present invention includes：One phase shifter, main receiving channel and auxiliary receiving channel, phase shifter
Input terminal connect with the output terminal in clock signal input source, the first output terminal of phase shifter respectively with the main receiving channel
In-phase component branch is connected with the in-phase component branch of the auxiliary receiving channel, the second output terminal of phase shifter respectively with main reception
The phase-shifted component branch of channel is connected with the phase-shifted component branch of auxiliary receiving channel.In the prior art, it main receiving channel and auxiliary connects
Channel is received respectively with a phase shifter by signal phase shift so that the major-minor receiving channel of TD-LTE zero intermediate frequency reciver frameworks
Reference signal antenna relative phase there are ± 180 ° of random rollover characteristics and radiation two-phase method can not be used to complete radiation
The test of receptivity.In the application, main receiving channel and auxiliary receiving channel share a phase shifter by signal phase shift, can be effective
The reference signal antenna relative phase for avoiding major-minor receiving channel generate ± 180 ° of random overturnings, so as to fulfill TD-LTE ends
The test that radiation two-phase method completes radiation receptivity may be used in end.
Description of the drawings
Fig. 1 is a kind of structure diagram of phase-shift circuit in the embodiment of the present invention one；
Fig. 2 is phase relation signal of the signal in the embodiment of the present invention one into output signal after 0 degree/90-degree phase shifter
Figure；
Fig. 3 is a kind of flow chart of the test method of the radiance of phase-shift circuit in the embodiment of the present invention two；
Fig. 4 is a kind of structure diagram of the test device of the radiance of phase-shift circuit in the embodiment of the present invention three.
Specific embodiment
The present invention is described in further detail with reference to the accompanying drawings and examples.It is understood that this place is retouched
The specific embodiment stated is used only for explaining the present invention rather than limitation of the invention.It also should be noted that in order to just
Part related to the present invention rather than entire infrastructure are illustrated only in description, attached drawing.
It should be mentioned that some exemplary embodiments are described as before exemplary embodiment is discussed in greater detail
The processing described as flow chart or method.Although each step is described as the processing of sequence, many of which by flow chart
Step can be implemented concurrently, concomitantly or simultaneously.In addition, the sequence of each step can be rearranged.When its operation
The processing can be terminated during completion, it is also possible to have the additional step being not included in attached drawing.The processing can be with
Corresponding to method, function, regulation, subroutine, subprogram etc..
Embodiment one
Fig. 1 is the structure diagram of a kind of phase-shift circuit that the embodiment of the present invention one provides, and the present embodiment is applicable to survey
The situation of major-minor channel reference signal antenna relative phase in multi-antenna user device radiation receptivity is tried, as shown in Figure 1, should
Phase-shift circuit includes：Clock signal input source 110, phase shifter 120, main receiving channel 130 and auxiliary receiving channel 140.
The input terminal of phase shifter 120 is connect with the output terminal in clock signal input source 110, the first output of phase shifter 120
The in-phase component branch respectively with the in-phase component branch of main receiving channel 130 and auxiliary receiving channel 140 is held to connect, phase shifter
120 second output terminal respectively with the phase-shifted component branch of main receiving channel 130 and the phase-shifted component branch of auxiliary receiving channel 140
Connection.
Under this application scene, for signal source of clock 110 for generating clock signal, the frequency of clock signal can be according to reality
The driving demand of border application is adjusted.Phase shifter 120 can be the device that the phase of signal can be adjusted, effect
It is by one angle of phase shift of signal.Preferably, the phase shifting angle of phase shifter is 0 in TD-LTE radio frequencies zero intermediate frequency reciver
/ 90 degree of degree inputs 0 degree of the signal phase variation of signal one of output terminal in output of the phase shifter, another output
The signal phase variation at end is 90 degree, and under this application scene, the first output terminal of phase shifter 120 is 0 degree of output terminal, and second exports
It holds as 90 degree of output terminals, i.e., the signal exported from the first output terminal generates 0 degree of phase shift, the signal production exported from second output terminal
Phase shift 90 degree raw.Fig. 2 is the phase that the signal that the embodiment of the present invention one provides enters output signal after 0 degree/90-degree phase shifter
Relation schematic diagram.As shown in Fig. 2, the phase of 0 degree of signal of phase shift is identical with the phase of input signal, phase shift is not generated, and is moved
The phase of 90 degree of signals of phase differs 90 degree with the phase of input signal, produces 90 degree of phase shift, illustratively, it is assumed that phase shift 0
The phase for spending signal is j2 π fLot+θ0, the phase of 90 degree of signals of phase shift is j2 π fLot+θ0+90°.Signal is exported from phase shifter 120
Major-minor I or major-minor Q two-way local oscillation signals are divided into using power splitter again respectively afterwards, wherein power splitter ensure between two-way output every
From.
Illustratively, after phase shifter 120 is designed using design method shown in FIG. 1, it is assumed that the I of main receiving channel 130
The phase of road local oscillation signal is j2 π fLot+θ0', then the phase of Q roads local oscillation signal is j2 π fLot+θ0′+90°.At this point, auxiliary reception
The phase of 140 corresponding I roads local oscillation signal of channel is j2 π fLot+θ1', then the phase of Q roads local oscillation signal is j2 π fLot+θ1′+
90 °, and θ0′-θ1'=0 ± 360 °, i.e., major-minor I/Q local oscillators phase is synchronous variation, therefore RSARP no longer has ± 180 ° at random
Saltus step.
Main receiving channel 130 and auxiliary receiving channel 140 can be main receiving channel and auxiliary reception in FDD-LTE receivers
Main receiving channel and auxiliary receiving channel in channel or TD-LTE receivers.Under this application scene, it is preferred that main reception
Channel 130 is TD-LTE radio frequency zero intermediate frequency recivers main channel, and auxiliary reception logical 140 is auxiliary logical for TD-LTE radio frequency zero intermediate frequency recivers
Road.
Preferably, the output terminal of phase shifter 120 is led to respectively by frequency mixer 150 and main receiving channel 130 and auxiliary receive
Road 140 connects.
The effect of frequency mixer 150 can be from a frequency transformation to another frequency by signal, and mixting circuit can be with
Including local oscillator, nonlinear device and bandpass filter.Under this application scene, the effect of frequency mixer 150 is to meet master
The in-phase component of receipts channel 130 and the in-phase component and phase-shifted component of phase-shifted component and auxiliary receiving channel 140 are distortionless from original
On frequency translation to the position of intermediate frequency or zero-frequency.
Preferably, clock signal input source 110 includes sequentially connected frequency divider 113, frequency synthesizer 112 and default frequency
Rate clock source 111, the input terminal of phase shifter 120 are connect with the output terminal of frequency divider 113.
Wherein, predeterminated frequency clock source 111 can generate the clock signal of fixed frequency, it is preferred that in this application scene
Under, predeterminated frequency clock source 111 is 26MHz clock sources, i.e., the frequency that predeterminated frequency clock source 111 generates signal is 26MHz.
Frequency synthesizer 112 can be using one or more standard signals, by various technological approaches generate largely from
The equipment of frequency signal is dissipated, implementation method can include the synthesis of direct analog frequency, phase-locked Frequency Synthesis Technique Controlled and Direct Digital
Frequency synthesis technique.Wherein, direct analog frequency synthetic technology, by the use of one or more different crystal oscillators as benchmark
Signal source directly generates the output signal of many discrete frequencies by approach such as frequency multiplication, frequency dividing, mixing；Phase locking frequency synthesis skill
Art using one or several reference frequency sources, passes through a large amount of harmonic wave of generations or the combinations such as harmonic oscillator mixing and frequency dividing
Frequency, then with phaselocked loop, the Frequency Locking of voltage controlled oscillator on a certain harmonic wave or combination frequency；Direct Digital frequency is closed
Into technology, frequency synthesis is carried out from the concept of phase, employs digital sample memory technology.
The signal that frequency synthesizer 112 exports can be carried out frequency reducing by frequency divider 113, and effect can be circuit isolation and increase
Plus signal driving force.Illustratively, it is 2f from the frequency of frequency synthesizer output signalLo, the signal is by frequency divider 113
Afterwards, changeable frequency fLo。
Preferably, phase shifter includes all devices of above-mentioned phase-shift circuit, under this application scene, illustratively, phase shift
The course of work of device can be that the 26MHz clock signals generated by predeterminated frequency clock source enter frequency synthesizer 112, clock
Signal becomes frequency as 2f after frequency synthesizer 112LoSignal enter frequency divider 113, the divided device 113 of signal becomes after dividing
It is f into frequencyLoSignal enter phase shifter 120, after the shifted device 120 of signal carries out 0 degree of phase shift and 90 degree of phase shifts, 0 degree of phase shift
Signal afterwards is respectively enterd in the in-phase component branch of main receiving channel 130 and the in-phase component branch of auxiliary receiving channel 140
Form in-phase component after frequency mixer 150, the signal after 90 degree of phase shifts respectively enter main receiving channel 130 phase-shifted component branch and
Frequency mixer 150 in the phase-shifted component branch of auxiliary receiving channel 140 forms phase-shifted component.
Phase-shift circuit in the embodiment of the present invention includes：One phase shifter, main receiving channel and auxiliary receiving channel, phase shifter
Input terminal connect with the output terminal in clock signal input source, the first output terminal of phase shifter respectively with the main receiving channel
In-phase component branch is connected with the in-phase component branch of the auxiliary receiving channel, the second output terminal of phase shifter respectively with main reception
The phase-shifted component branch of channel is connected with the phase-shifted component branch of auxiliary receiving channel.In the prior art, it main receiving channel and auxiliary connects
Channel is received respectively with a phase shifter by signal phase shift so that the major-minor receiving channel of TD-LTE zero intermediate frequency reciver frameworks
Reference signal antenna relative phase there are random rollover characteristics and can not use radiation two-phase method complete radiation acceptance
The test of energy.In the application, main receiving channel and auxiliary receiving channel share a phase shifter by signal phase shift, can effectively avoid
The reference signal antenna relative phase of major-minor receiving channel generates ± 180 ° of random overturnings, can be with so as to fulfill TD-LTE terminals
The test of radiation receptivity is completed using radiation two-phase method.
Embodiment two
A kind of Fig. 3 flow charts of the test method of the radiance of phase-shift circuit provided by Embodiment 2 of the present invention, the party
Method is performed by phase-shift circuit in above-described embodiment and phase shifter, as shown in figure 3, the test method of the radiance specifically include as
Lower step：
Step 310, reference signal antenna relative phase is obtained by phase-shift circuit.
Wherein, reference signal antenna relative phase can be that the cell that LTE channel width internal reference antennas (RX0) receive is special
The cell special reference that the average phase and reference antenna (RX1) of all resource units carried with reference signal receive is taken
Difference between the average phase of all resource units (R0) of band.Illustratively, it is assumed that the main receiving channel absolute phase of terminal
It is Phase1 for Phase0, auxiliary receiving channel absolute phase, then the calculation formula of reference signal antenna relative phase is：PSARP
=| Phase0-Phase1 |.
Step 320, based on reference signal antenna relative phase, radiation receptivity is surveyed using radiation two-phase method
Examination.
Radiate two-phase method can include two stages, the first stage be test the main and auxiliary antenna of measured terminal compound to
Figure, using TM1 transmission modes, second stage is to test the radiation receptivity i.e. handling capacity of measured terminal, using
TM4 space division multiplexing transmission patterns.In order to realize that the main and auxiliary antenna of first stage measured terminal answers the test of directional diagram, measured terminal
Need to have antenna measurement function, that is, the ability that measured terminal is required to have antenna measurement reporting parameters, antenna measurement parameter packet
Include main and auxiliary antenna opening reference signal antenna power and reference signal antenna relative phase.Under this application scene, step is utilized
The 310 reference signal antenna relative phases calculated complete the test to radiating receptivity using radiation two-phase method.
The technical solution of the present embodiment obtains reference signal antenna relative phase by phase-shift circuit, is then based on referring to
Signal antenna relative phase tests radiation receptivity using radiation two-phase method.Utilize the phase shift in embodiment one
The reference signal antenna relative phase that circuit obtains, due to overcoming ± 180 ° of characteristics overturn at random so that TD-LTE terminals
The test that radiation two-phase method completes radiation receptivity may be used.
Embodiment three
A kind of structure diagram of the test device of the radiance for phase-shift circuit that Fig. 4 embodiment of the present invention three provides,
As shown in figure 4, the test device of the radiance of the phase-shift circuit includes：Relative phase acquisition module 410 and two-phase method are surveyed
Die trial block 420.
Relative phase acquisition module 410, for obtaining reference signal antenna relative phase RSARP by phase-shift circuit；
Two-phase method test module 420, for the opposite phase of reference signal antenna obtained based on relative phase acquisition module
Radiation receptivity is tested using radiation two-phase method in position.
Above device can perform the method that the aforementioned all embodiments of the present invention are provided, and it is corresponding to have the execution above method
Function module and advantageous effect.The not technical detail of detailed description in the present embodiment, reference can be made to the aforementioned all implementations of the present invention
The method that example is provided.
Note that it above are only presently preferred embodiments of the present invention and institute's application technology principle.It will be appreciated by those skilled in the art that
The present invention is not limited to specific embodiment described here, can carry out for a person skilled in the art various apparent variations,
It readjusts and substitutes without departing from protection scope of the present invention.Therefore, although being carried out by above example to the present invention
It is described in further detail, but the present invention is not limited only to above example, without departing from the inventive concept, also
It can include other more equivalent embodiments, and the scope of the present invention is determined by scope of the appended claims.
Claims (10)
1. a kind of phase-shift circuit, which is characterized in that including：One phase shifter, main receiving channel and auxiliary receiving channel；
The input terminal of the phase shifter is connect with the output terminal in clock signal input source；
First output terminal of the phase shifter respectively with the in-phase component branch of the main receiving channel and the auxiliary receiving channel
In-phase component branch connection；
The second output terminal of the phase shifter respectively with the phase-shifted component branch of the main receiving channel and the auxiliary receiving channel
Phase-shifted component branch connection.
2. phase-shift circuit according to claim 1, which is characterized in that the output terminal of the phase shifter passes through frequency mixer respectively
It is connect with the main receiving channel and the auxiliary receiving channel.
3. phase-shift circuit according to claim 1, which is characterized in that the clock signal input source includes sequentially connected
Frequency divider, frequency synthesizer and predeterminated frequency clock source, the input terminal of the phase shifter are connect with the output terminal of the frequency divider.
4. phase-shift circuit according to claim 3, which is characterized in that the predeterminated frequency clock source is 26MHz clock sources.
5. phase-shift circuit according to claim 1, which is characterized in that the phase shifting angle of the phase shifter is 0 degree/90 degree.
6. phase-shift circuit according to claim 5, which is characterized in that the first output terminal of the phase shifter is 0 degree of output
End；The second output terminal of the phase shifter is 90 degree of output terminals.
7. phase-shift circuit according to claim 1, which is characterized in that the main receiving channel is TD-LTE radio frequency zero intermediate frequencys
Receiver main channel；The auxiliary receiving channel is TD-LTE radio frequency zero intermediate frequency reciver secondary channels.
8. a kind of phase shifter, including the phase-shift circuit described in any one in claim 1-7.
9. a kind of test method of the radiance of the phase-shift circuit based on described in any one of claim 1-7, feature exist
In, including：
Reference signal antenna relative phase RSARP is obtained by the phase-shift circuit；
Based on the reference signal antenna relative phase, radiation receptivity is tested using radiation two-phase method.
10. a kind of test device of the radiance of the phase-shift circuit based on described in any one of claim 1-7, feature exist
In, including：
Relative phase acquisition module, for obtaining reference signal antenna relative phase RSARP by the phase-shift circuit；
Two-phase method test module, for the opposite phase of the reference signal antenna obtained based on the relative phase acquisition module
Radiation receptivity is tested using radiation two-phase method in position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611218249.5A CN108241096A (en) | 2016-12-26 | 2016-12-26 | The test method and device of a kind of phase-shift circuit, phase shifter and radiance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611218249.5A CN108241096A (en) | 2016-12-26 | 2016-12-26 | The test method and device of a kind of phase-shift circuit, phase shifter and radiance |
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| CN108241096A true CN108241096A (en) | 2018-07-03 |
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| CN201611218249.5A Pending CN108241096A (en) | 2016-12-26 | 2016-12-26 | The test method and device of a kind of phase-shift circuit, phase shifter and radiance |
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| CN110311289A (en) * | 2019-07-09 | 2019-10-08 | 中国人民解放军空军工程大学 | Microwave phase locking method and device is tangled in a kind of path |
| CN110927453A (en) * | 2019-11-28 | 2020-03-27 | 加特兰微电子科技(上海)有限公司 | Testing device and testing method of phase shifter |
| CN112164893A (en) * | 2020-09-30 | 2021-01-01 | 维沃移动通信有限公司 | Antenna structure and electronic equipment |
| CN113475013A (en) * | 2019-02-14 | 2021-10-01 | 苹果公司 | NR receive antenna relative phase measurement |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113475013A (en) * | 2019-02-14 | 2021-10-01 | 苹果公司 | NR receive antenna relative phase measurement |
| CN113475013B (en) * | 2019-02-14 | 2024-03-22 | 苹果公司 | NR receiving antenna relative phase measuring method, user equipment and medium |
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| CN110311289B (en) * | 2019-07-09 | 2020-09-04 | 中国人民解放军空军工程大学 | Path entanglement microwave phase locking method and device |
| CN110927453A (en) * | 2019-11-28 | 2020-03-27 | 加特兰微电子科技(上海)有限公司 | Testing device and testing method of phase shifter |
| CN110927453B (en) * | 2019-11-28 | 2022-04-08 | 加特兰微电子科技(上海)有限公司 | Testing device and testing method of phase shifter |
| CN112164893A (en) * | 2020-09-30 | 2021-01-01 | 维沃移动通信有限公司 | Antenna structure and electronic equipment |
| CN112164893B (en) * | 2020-09-30 | 2023-12-01 | 维沃移动通信有限公司 | Antenna structure and electronic equipment |
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Application publication date: 20180703 |