CN107817390A - A kind of antenna synthesis test system - Google Patents
A kind of antenna synthesis test system Download PDFInfo
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- CN107817390A CN107817390A CN201610815224.7A CN201610815224A CN107817390A CN 107817390 A CN107817390 A CN 107817390A CN 201610815224 A CN201610815224 A CN 201610815224A CN 107817390 A CN107817390 A CN 107817390A
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- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims description 4
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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 invention discloses a kind of antenna synthesis test system, it is characterised in that the equipment includes：Probe movement control system, radio frequency switching system, data acquisition and arithmetic system, signal transmission instrument, probe, far field and near-field thermal radiation parameter can be synthesized, and draw pattern data and carry out data judging.The algorithm that radiation parameter test is combined to based on array antenna amplitude in the present invention, include far field and two kinds of near field test pattern, and the pattern data under associative mode can be exported, then antenna circuit parameter testing project is integrated by a set of high performance radio frequency switching system, the efficiency and automaticity of antenna for base station producing line quality restriction can be significantly provided, there is precision height, conveniently moving, cost is low, the characteristics of being easy to safeguard.
Description
Technical field
The present invention relates to wireless communication technology field, more particularly to a kind of antenna synthesis test system.
Background technology
The fast development of mobile communication has promoted the R＆D work of antenna, and the country some annual output antennas occurs and reaches hundreds of
Ten thousand, kind reach as many as hundreds of enterprises.Antenna measurement has become the bottleneck of the Corporation R ＆ D progress of work.
Single probe antenna test system of system, Two Dimensional Rotating before antenna must singly pop one's head at one is tested in test, with true
Protect and surround the tested field of the antenna on a sphere.When shake hardly possible up and down easily occurs during movement for probe
To judge whether the stroke of probe reaches sets target and uniformity to data acquisition phase impacts；Meanwhile test
The probability that test problem caused by the time longer external factor by environmental change, instrument unstability etc. occurs is higher.
Traditional Antenna testing system testing radiation parameter and unit for electrical property parameters need to carry out in different places respectively, special
It is not that the radiation parameter test environment of the tabular directional base station antenna of large enterprise involves great expense, the cost in a large-scale far field can
To reach ten million even several ten million, and whole test site floor space is big, is not easy to move, and is according to small size antenna test
System, the then size measured can be restricted again.
State's internal antenna industry has reached scale volume production, but is restricted by antenna measurement efficiency and place construction cost
The quality management and control of volume production stage antenna radiation performance lacks substantially, only 1 percent even one thousandth, so being made at present
Antenna testing system needs improvement badly.
Therefore, how to provide it is a kind of have precision height, conveniently moving, cost is low, is easy to the antenna synthesis of maintenance feature to survey
The problem of test system is those skilled in the art's urgent need to resolve.
The content of the invention
In view of this, the invention provides it is a kind of with precision height, conveniently moving, cost is low, is easy to the day of maintenance feature
Line generalization test system.
To achieve the above object, the present invention provides following technical scheme：
A kind of antenna synthesis test system, it is characterised in that required equipment includes：Probe movement control system：It is coupled to
Pop one's head in and by arranging movement locus on tri- directions of XYZ, probe is realized in measured object irradiation field region and move freely；
Radio frequency switching system：The transmitting and reception of radiofrequency signal are controlled, and antenna lower decline angle is switched over, is enabled real
Switching between existing radio frequency multichannel；
Signal transmission instrument：For receiving radiofrequency signal that radio frequency switching system launched and to export transmission signal；
Data acquisition and arithmetic system：Signal transmission instrument is coupled to receive transmission signal and realize data by popping one's head in
Collection, obtains near field and far-field pattern data, and judged immediately using calculus computing；Wherein, the data judging
Mode for the data after collection are contrasted with it according to normal data, and current checking matter is judged；The mark
Quasi- data are systems according to the product gold machine data to prestore or directly according to the data of actual test.
Preferably, in a kind of above-mentioned antenna synthesis test system, the radio frequency switching system integrates AISG control modules,
And the control module makes whole system and antenna form interaction by AISG communication modes, all electricity of the antenna are made to adjust inclination angle
Realize automation switching.
Preferably, in a kind of above-mentioned antenna synthesis test system, the radio frequency switching system is tested including radiation parameter
Pattern and parametric test circuit pattern.
Preferably, in a kind of above-mentioned antenna synthesis test system, the collection side of the far-field pattern number radiation parameter
Method is：The each oscillator amplitude-phase information being coupled to by popping one's head in, range site battle array lobe multiplication principle obtain linear array day
Line directional diagram, array factor is multiplied with unit lobe can obtain the far-field pattern data of linear array antenna, as follows：
If sharing N number of unit in an aerial array, lobe of n-th of unit in battle array isIt is in battle array
In position be (Xn, Yn, Zn), the amplitude of excitation is In, phase isThen the lobe of the array of this antenna can be write as
In actual application environment, each unit oscillator lobe is essentially identical in array, and now array lobe can be written as
In formula,It is unit battle array lobe, abbreviation element factor；
S is referred to as the factor or steric factor of array, and it is relevant with unit number, position, excitation amplitude and phase.For battle array
To be equidistantly located at the linear array on straight line, its array factor is reduced to each unit in rowFormula
In, θ is the angle of direction of observation and straight line, and array factor is multiplied with unit lobe can obtain the far-field pattern of linear array antenna
Data
Preferably, in a kind of above-mentioned antenna synthesis test system, the collection side of the near-field pattern number radiation parameter
Method is：Driving probe moves in current linear array rectilinear direction, the amplitude letter in defined acquisition interval apart from the upper collection position
Breath, the rectangular co-ordinate pattern data that can obtain near field amplitude to adding azimuthal coordinate after the data normalization.
Understood via above-mentioned technical scheme, compared with prior art, radiation parameter is tested and is based on array day in the present invention
The algorithm that wire spoke is combined to, comprising far field and two kinds of near field test pattern, and the pattern data under associative mode can be exported,
Then antenna circuit parameter testing project is integrated by a set of high performance radio frequency switching system, antenna for base station can be significantly provided
The efficiency and automaticity of producing line quality restriction, there is precision height, conveniently moving, cost is low, the characteristics of being easy to safeguard.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the required accompanying drawing used in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
The embodiment of invention, for those of ordinary skill in the art, on the premise of not paying creative work, can also basis
The accompanying drawing of offer obtains other accompanying drawings.
Fig. 1 accompanying drawings are theory structure schematic diagram of the invention.
Fig. 2 accompanying drawings are that probe movement control system of the present invention moves schematic diagram in XYZ directions.
Fig. 3 accompanying drawings are radio frequency switching system connection diagram of the present invention.
Fig. 4 accompanying drawings are that radiation parameter of the present invention tests radio frequency switching system connection diagram.
Fig. 5 accompanying drawings are parametric test circuit radio frequency switching system connection diagram of the present invention.
Fig. 6 accompanying drawings are data judging schematic diagram of the present invention.
Fig. 7 accompanying drawings are locating calibration system schematic diagram of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other under the premise of creative work is not made
Embodiment, belong to the scope of protection of the invention.
The embodiment of the invention discloses it is a kind of with precision height, conveniently moving, cost is low, is easy to the day twine helad of maintenance feature
Close test system.
Accompanying drawing 1, accompanying drawing 2, accompanying drawing 3, accompanying drawing 4, accompanying drawing 5, accompanying drawing 6, accompanying drawing 7 are referred to, is a kind of day disclosed by the invention
Line generalization test system, is specifically included：
Probe movement control system：It is coupled to probe and by arranging movement locus on tri- directions of XYZ, probe is existed
Realize and move freely in measured object irradiation field region；
Radio frequency switching system：The transmitting and reception of radiofrequency signal are controlled, and antenna lower decline angle is switched over, is enabled real
Switching between existing radio frequency multichannel；
Signal transmission instrument：For receiving radiofrequency signal that radio frequency switching system launched and to export transmission signal；
Data acquisition and arithmetic system：Signal transmission instrument is coupled to receive transmission signal and realize data by popping one's head in
Collection, obtains near field and far-field pattern data, and judged immediately using calculus computing；Wherein, the data judging
Mode for the data after collection are contrasted with it according to normal data, and current checking matter is judged；The mark
Quasi- data are systems according to the product gold machine data to prestore or directly according to the data of actual test.
The algorithm that radiation parameter test is combined to based on array antenna amplitude in the present invention, include far field and the test of two kinds of near field
Pattern, and the pattern data under associative mode can be exported, then by a set of high performance radio frequency switching system by antenna
Parametric test circuit project integrates, and can significantly provide the efficiency and automaticity of antenna for base station producing line quality restriction, has essence
Degree height, conveniently moving, cost is low, the characteristics of being easy to safeguard.
In order to further optimize above-mentioned technical proposal, radio frequency switching system integrates AISG control modules, and the control mould
Block makes whole system and antenna form interaction by AISG communication modes, makes all electricity of the antenna adjust inclination angle to realize that automation is cut
Change.
In order to further optimize above-mentioned technical proposal, the radio frequency switching system includes radiation parameter test pattern and circuit
Parameter testing pattern.
1st, in order to further optimize above-mentioned technical proposal, the acquisition method of far-field pattern number radiation parameter is：Pass through spy
Each oscillator amplitude-phase information that head is coupled to, range site battle array lobe multiplication principle obtain linear array antenna directional diagram, battle array
The factor is multiplied with unit lobe can obtain the far-field pattern data of linear array antenna, as follows：
If sharing N number of unit in an aerial array, lobe of n-th of unit in battle array isIt is in battle array
In position be (Xn, Yn, Zn), the amplitude of excitation is In, phase isThen the lobe of the array of this antenna can be write as
In actual application environment, each unit oscillator lobe is essentially identical in array, and now array lobe can be written as
In formula,It is unit battle array lobe, abbreviation element factor；
The referred to as factor or steric factor of array, it is relevant with unit number, position, excitation amplitude and phase.For battle array
To be equidistantly located at the linear array on straight line, its array factor is reduced to each unit in row
In formula, θ is the angle of direction of observation and straight line, and array factor is multiplied with unit lobe can obtain the far field of linear array antenna
Pattern data.
In order to further optimize above-mentioned technical proposal, the acquisition method of the near-field pattern number radiation parameter is：Driving
Probe moves in current linear array rectilinear direction, the amplitude information in defined acquisition interval apart from the upper collection position, to the number
The rectangular co-ordinate pattern data that can obtain near field amplitude according to azimuthal coordinate is added after normalization.
In order to further optimize above-mentioned technical proposal, locating calibration system in the optional position installation of movable type probe by swashing
Optical alignment launch point, reception device is installed on the segment distance of launch point one is left, when popping one's head in during movement, can detect
Whether in the stroke shaken and pop one's head in up and down whether reach sets target to probe, detecting feedback precision can be with
Reach within 20 μm, as shown in Figure 7, because probe is end of scan, if it happens shakes or formed during motion
Precision not enough can impact to test uniformity, and test system is meant to ensure that the running precision of whole system in the present invention,
Form closed loop.
In order to further optimize above-mentioned technical proposal, the present invention is realized based on following technical method：
The first step, transmitting and reception of the Network Analyzer as signal are selected, receiving transducer is miniature ultra wide band
Dual polarized antenna, working frequency range are 400MHz~6GHz, include existing all normal mobile communication frequency ranges；
Second step, Tx with the Rx ports of Network Analyzer are connected with radio frequency switching system corresponding ports, by antenna institute
There is port to be measured to be connected with radio frequency switching system corresponding ports, by dual polarization probe two-port and radio frequency switching system corresponding ports
It is connected；
3rd step, radio frequency switching system switch to the pattern of accompanying drawing 4, and probe movement control system is started working, and driving is visited
Head carries out linear scanning in antenna position directly above, and data acquisition and arithmetic system gather current location and radiofrequency signal letter in real time
Breath, far field and near-field pattern data are obtained by handling computing；
4th step, if antenna adjusts product for electricity, radio frequency switching system can be by AISG control terminals to Downtilt
It is adjusted, the 3rd step is repeated after the completion of adjustment；
5th step, radio frequency switching system switch to the pattern of accompanying drawing 5, that is, start the detection of conventional aerial circuit parameter, test
After Downtilt is adjusted by radio frequency switching system, test is started again at after the completion of adjustment, until all inclining
Angle test is completed；
6th step, all test datas of system combination, contrasted with the product gold machine data, generation test report obtains
Result of determination.
Each embodiment is described by the way of progressive in this specification, what each embodiment stressed be and other
The difference of embodiment, between each embodiment identical similar portion mutually referring to.For device disclosed in embodiment
For, because it is corresponded to the method disclosed in Example, so description is fairly simple, related part is said referring to method part
It is bright.
The foregoing description of the disclosed embodiments, professional and technical personnel in the field are enable to realize or using the present invention.
A variety of modifications to these embodiments will be apparent for those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, it is of the invention
The embodiments shown herein is not intended to be limited to, and is to fit to and principles disclosed herein and features of novelty phase one
The most wide scope caused.
Claims (5)
1. a kind of antenna synthesis test system, it is characterised in that required equipment includes：Probe movement control system：It is coupled to spy
Head and by arranging movement locus on tri- directions of XYZ, probe is realized in measured object irradiation field region and move freely；
Radio frequency switching system：The transmitting and reception of radiofrequency signal are controlled, and antenna lower decline angle is switched over, enabled realization is penetrated
Switching between frequency multi-channel；
Signal transmission instrument：For receiving radiofrequency signal that radio frequency switching system launched and to export transmission signal；Data are adopted
Collection and arithmetic system：Signal transmission instrument is coupled to receive transmission signal and realize data acquisition by popping one's head in, utilizes micro- product
Partite transport is calculated to obtain near field and far-field pattern data, and is judged immediately；Wherein, the mode of the data judging is according to mark
Quasi- data are contrasted the data after collection with it, and current checking matter is judged；The normal data is system root
According to the product gold machine data to prestore or directly according to the data of actual test.
2. a kind of antenna synthesis test system according to claim 1, it is characterised in that the radio frequency switching system integrates
AISG control modules, and the control module makes whole system and antenna form interaction by AISG communication modes, makes the day
All electricity of line adjust inclination angle to realize automation switching.
3. a kind of antenna synthesis test system according to claim 1, it is characterised in that the radio frequency switching system includes
Radiation parameter test pattern and parametric test circuit pattern.
A kind of 4. antenna synthesis test system according to claim 1, it is characterised in that the far-field pattern number radiation
The acquisition method of parameter is：The each oscillator amplitude-phase information being coupled to by popping one's head in, range site battle array lobe multiplication principle
Linear array antenna directional diagram is obtained, array factor is multiplied with unit lobe can obtain the far-field pattern data of linear array antenna,
It is as follows：
If sharing N number of unit in an aerial array, lobe of n-th of unit in battle array isIts position in battle array
It is set to (Xn, Yn, Zn), the amplitude of excitation is In, phase isThen the lobe of the array of this antenna can be write as
In actual application environment, each unit oscillator lobe is essentially identical in array, and now array lobe can be written as
In formula,It is unit battle array lobe, abbreviation element factor；
S is referred to as the factor or steric factor of array, and it is relevant with unit number, position, excitation amplitude and phase.For in array
To be equidistantly located at the linear array on straight line, its array factor is reduced to each unit
In formula, θ is the angle of direction of observation and straight line；Array factor is multiplied with unit lobe can obtain the far field of linear array antenna
Pattern data.
A kind of 5. antenna synthesis test system according to claim 1, it is characterised in that the near-field pattern number radiation
The acquisition method of parameter is：Driving probe moves in current linear array rectilinear direction, should apart from upper collection in defined acquisition interval
The amplitude information of position, the rectangular co-ordinate directional diagram number that can obtain near field amplitude to adding azimuthal coordinate after the data normalization
According to.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110398638A (en) * | 2019-07-26 | 2019-11-01 | 成都天锐星通科技有限公司 | A kind of phased array antenna test method and phased array antenna test macro |
| CN113449439A (en) * | 2021-08-27 | 2021-09-28 | 广东健博通科技股份有限公司 | Design method, device and system of array antenna and storage medium |
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| CN104764938A (en) * | 2015-03-10 | 2015-07-08 | 中国电子科技集团公司第十研究所 | Antenna near field measuring method provided with self-contained phase reference channel |
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| CN105548729A (en) * | 2016-02-22 | 2016-05-04 | 石家庄世联达科技有限公司 | Quick testing method for radiation characteristic of array antenna |
| CN205404688U (en) * | 2016-02-22 | 2016-07-27 | 石家庄世联达科技有限公司 | A device for rapid survey array antenna radiation characteristic |
-
2016
- 2016-09-12 CN CN201610815224.7A patent/CN107817390A/en active Pending
Patent Citations (5)
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|---|---|---|---|---|
| WO2000004393A1 (en) * | 1998-07-14 | 2000-01-27 | Sensis Corporation | Antenna field tester |
| CN105425185A (en) * | 2014-12-30 | 2016-03-23 | 北京无线电计量测试研究所 | Rectangular-coordinate scanning and calibration system and method for amplitude and phase performances of plane wave |
| CN104764938A (en) * | 2015-03-10 | 2015-07-08 | 中国电子科技集团公司第十研究所 | Antenna near field measuring method provided with self-contained phase reference channel |
| CN105548729A (en) * | 2016-02-22 | 2016-05-04 | 石家庄世联达科技有限公司 | Quick testing method for radiation characteristic of array antenna |
| CN205404688U (en) * | 2016-02-22 | 2016-07-27 | 石家庄世联达科技有限公司 | A device for rapid survey array antenna radiation characteristic |
Non-Patent Citations (1)
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110398638A (en) * | 2019-07-26 | 2019-11-01 | 成都天锐星通科技有限公司 | A kind of phased array antenna test method and phased array antenna test macro |
| CN113449439A (en) * | 2021-08-27 | 2021-09-28 | 广东健博通科技股份有限公司 | Design method, device and system of array antenna and storage medium |
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