CN106970272A - Near field far field multifunctional test system - Google Patents
Near field far field multifunctional test system Download PDFInfo
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- CN106970272A CN106970272A CN201710357209.7A CN201710357209A CN106970272A CN 106970272 A CN106970272 A CN 106970272A CN 201710357209 A CN201710357209 A CN 201710357209A CN 106970272 A CN106970272 A CN 106970272A
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- test
- areflexia
- field
- camera bellows
- receiver
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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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- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- General Physics & Mathematics (AREA)
- Testing Electric Properties And Detecting Electric Faults (AREA)
Abstract
The invention discloses near field far field multifunctional test system, including microwave signal source, double-circle polarization electromagnetic horn, areflexia camera bellows, control cabinet, computer, near-field test equipment, test receiver, the shell of the areflexia camera bellows is wood materials, intermediate layer is copper metallic plate, internal layer is that pyramid inhales ripple foam, the test receiver and computer are arranged in control cabinet, computer and control cabinet are connected with test receiver, the near-field test equipment is arranged on the top of areflexia camera bellows, near-field test equipment is also connected with test receiver, mobile device is connected with below the areflexia camera bellows, the mobile device can drive areflexia camera bellows to move.The test system of the present invention, near field and far field test can be carried out simultaneously, both advantages are combined, while eliminating the shortcoming of both some aspects, the precision of test can be improved.
Description
Technical field
The present invention relates to a kind of Sweep Source, and in particular near field far field multifunctional test system.
Background technology
In all trades and professions, especially electronic applications, various measurement apparatus species is various.Integrated outdoor unit is
The important component of satellite television receiving system, its quality good or not directly influences the rating effect of satellite television receiving system
Really.Traditional, feed generally uses circular waveguide, and caliber size disunity, and this brings extreme difficulties to waveguide method measurement.
Far-field measurement system is to set up receiver and transmitter in a small microwave darkroom, and tested integration outdoor unit is placed in reception dress
Put, emitter installs standard emission loudspeaker.Antenna damnification system is one to be enclosed on that central computer control is lower to carry out day
Line near-field scan, data acquisition, test data processing and test result show the automatic measuring system with output.Whole antenna
Near field test system is made up of hardware subsystem and software subsystem two large divisions.Hardware subsystem can be further divided into test again
Darkroom subsystem-include areflexia test cabinet and subsidiary body, sampling shelf system-include multiaxis sampling stand and multiaxis stepping electricity
Machine, multi-axis motion controller, servo-driver, near-field test probe, industrial control computer and peripheral hardware etc..
Wherein, the single measurement result of near-field test is nonsensical, it is necessary to be measured under identical setting twice, by twice
As a result difference judges improvement, but repeatability is poor, higher to personnel qualifications；Measurement result is EUT true
Data, can also judge improvement with the difference of test result twice, but somewhat expensive.Two kinds of method of testings are independent
Cut both ways when test.
The content of the invention
Problems of the prior art of the present invention are that the single measurement result of near-field test is nonsensical, it is necessary to identical
Lower measurement is set twice, improvement is judged by the difference of two times result, but repeatability is poor, to personnel qualifications
It is higher；Measurement result is EUT True Datas, can also judge improvement with the difference of test result twice, but expense
It is expensive.Two kinds of method of testings cut both ways when independent test, it is therefore intended that there is provided near field far field multifunctional testing system
System, near field and far field test can be carried out simultaneously, both advantages are combined, while the shortcoming of both some aspects is eliminated,
The precision of test can be improved.
The present invention is achieved through the following technical solutions：
Near field far field multifunctional test system, including microwave signal source, double-circle polarization electromagnetic horn, areflexia camera bellows, control
Case processed, computer, near-field test equipment, test receiver, the shell of the areflexia camera bellows is wood materials, and intermediate layer is copper
Matter metallic plate, internal layer is that pyramid inhales ripple foam, and the test receiver and computer are arranged in control cabinet, computer and control
Case is connected with test receiver, and the near-field test equipment is arranged on the top of areflexia camera bellows, near-field test equipment also with
Test receiver is connected, and is connected with mobile device below the areflexia camera bellows, the mobile device can drive areflexia camera bellows to enter
Row movement.
The test system of the present invention, near field and far field test can be carried out simultaneously, both advantages are combined, and removed simultaneously
The shortcoming of both some aspects, can improve the precision of test.Wherein, near-field test equipment is arranged on areflexia darkroom,
Areflexia darkroom can constantly be moved by mobile device, so can constantly be adjusted areflexia darkroom and near field and be surveyed
Try the distance between equipment and signal source so that probe can gather the data of difference, far field and near field are gathered in same point
Test data, is analyzed then in conjunction with far field test result, greatly improves measuring accuracy, can be very good field
Testing requirement.It is connected with control cabinet and computer after spectrum analyzer, the change of frequency can be analyzed, just draws the friendship of determinand
This characteristic index of fork polarization isolation, is easy to automatically control.The shell of areflexia camera bellows is wood materials, and intermediate layer is copper
Metallic plate, internal layer is that pyramid inhales ripple foam, and the effect of material radio wave absorbing is good, and this special casing layer causes incident
Electromagnetic wave is absorbed to greatest extent, is minimally reflected, and a certain segment space indoors can constitute one close to "
The echo free space domain of free space condition ", cost is low, small volume, easy care.Box weight and floor space decline to a great extent, and are
Large-scale production provides preferable implementation, while near field test device is also set along on areflexia camera bellows, realizes
The integration of system, in that context it may be convenient to carry out the resettlement of test system.
The test receiver frequency spectrograph or Network Analyzer.
The near-field test equipment include supporting construction, arch ring, electronic box, multiple radio-frequency radiation signal sampling probes, pole,
Luggage carrier, turntable, servomotor, radio-frequency radiation signal sampling probe are uniformly arranged on arch ring according to certain angle interval, are encircleed
Ring is fixed on the support structure, can be significantly improved testing efficiency, measurement accuracy, while greatling save place scope, also be carried
The convenience of operation is risen.
The vertical range of the microwave signal source and micro- areflexia camera bellows is 3.0-3.5m.
The volume of the casing of the areflexia camera bellows is 1.5 meters × 1.5 meters × 1.5 meters.
The present invention compared with prior art, has the following advantages and advantages：
1st, near field far field of the present invention multifunctional test system, near field and far field test can be carried out simultaneously, both are combined
Advantage, while eliminating the shortcoming of both some aspects, the precision of test can be improved.Wherein, near-field test equipment is set
On areflexia darkroom, areflexia darkroom can constantly be moved by mobile device, so can constantly adjust nothing
Reflect the distance between darkroom and near-field test equipment and signal source so that probe can gather the data of difference, same
Point collection far field and near-field testing data, are analyzed then in conjunction with far field test result, greatly improve test essence
Degree, can be very good field testing requirement；
2nd, near field far field of the present invention multifunctional test system, near-field test equipment includes supporting construction, arch ring, electronic box, many
Individual radio-frequency radiation signal sampling probe, pole, luggage carrier, turntable, servomotor, radio-frequency radiation signal sampling are popped one's head according to certain
Angle interval is uniformly arranged on arch ring, and arch ring is fixed on the support structure, can significantly improve testing efficiency, measurement accuracy,
Place scope is greatlyd save simultaneously, the convenience of operation is also improved.
Embodiment
For the object, technical solutions and advantages of the present invention are more clearly understood, with reference to embodiment, to present invention work
Further to describe in detail, exemplary embodiment and its explanation of the invention is only used for explaining the present invention, is not intended as to this
The restriction of invention.
Embodiment
Near field far field of the present invention multifunctional test system, including microwave signal source, double-circle polarization electromagnetic horn, areflexia are dark
Case, control cabinet, computer, near-field test equipment, test receiver, the shell of the areflexia camera bellows is wood materials, middle
Layer is copper metallic plate, and internal layer is that pyramid inhales ripple foam, and the test receiver and computer are arranged in control cabinet, computer
It is connected with control cabinet with test receiver, the near-field test equipment is arranged on the top of areflexia camera bellows, near-field test is set
It is standby to be also connected with test receiver, mobile device is connected with below the areflexia camera bellows, the mobile device can drive areflexia
Camera bellows is moved.
The test system of the present invention, near field and far field test can be carried out simultaneously, both advantages are combined, and removed simultaneously
The shortcoming of both some aspects, can improve the precision of test.Wherein, near-field test equipment is arranged on areflexia darkroom,
Areflexia darkroom can constantly be moved by mobile device, so can constantly be adjusted areflexia darkroom and near field and be surveyed
Try the distance between equipment and signal source so that probe can gather the data of difference, far field and near field are gathered in same point
Test data, is analyzed then in conjunction with far field test result, greatly improves measuring accuracy, can be very good field
Testing requirement.It is connected with control cabinet and computer after spectrum analyzer, the change of frequency can be analyzed, just draws the friendship of determinand
This characteristic index of fork polarization isolation, is easy to automatically control.The shell of areflexia camera bellows is wood materials, and intermediate layer is copper
Metallic plate, internal layer is that pyramid inhales ripple foam, and the effect of material radio wave absorbing is good, and this special casing layer causes incident
Electromagnetic wave is absorbed to greatest extent, is minimally reflected, and a certain segment space indoors can constitute one close to "
The echo free space domain of free space condition ", cost is low, small volume, easy care.Box weight and floor space decline to a great extent, and are
Large-scale production provides preferable implementation, while near field test device is also set along on areflexia camera bellows, realizes
The integration of system, in that context it may be convenient to carry out the resettlement of test system.
It is preferred that, the test receiver frequency spectrograph or Network Analyzer.
It is preferred that, the near-field test equipment includes supporting construction, arch ring, electronic box, multiple radio-frequency radiation signal samplings and visited
Head, pole, luggage carrier, turntable, servomotor, radio-frequency radiation signal sampling probe are uniformly arranged on arch according to certain angle interval
On ring, arch ring is fixed on the support structure, testing efficiency, measurement accuracy can be significantly improved, while greatling save place model
Enclose, also improve the convenience of operation.
It is preferred that, the vertical range of the microwave signal source and micro- areflexia camera bellows is 3.0-3.5m.
It is preferred that, the volume of the casing of the areflexia camera bellows is 1.5 meters × 1.5 meters × 1.5 meters.
Above-described embodiment, has been carried out further to the purpose of the present invention, technical scheme and beneficial effect
Describe in detail, should be understood that the embodiment that the foregoing is only the present invention, be not intended to limit the present invention
Protection domain, within the spirit and principles of the invention, any modification, equivalent substitution and improvements done etc. all should be included
Within protection scope of the present invention.
Claims (5)
1. near field far field multifunctional test system, it is characterised in that microwave signal source, double-circle polarization electromagnetic horn, areflexia are dark
Case, control cabinet, computer, near-field test equipment, test receiver, the shell of the areflexia camera bellows is wood materials, middle
Layer is copper metallic plate, and internal layer is that pyramid inhales ripple foam, and the test receiver and computer are arranged in control cabinet, computer
It is connected with control cabinet with test receiver, the near-field test equipment is arranged on the top of areflexia camera bellows, near-field test is set
It is standby to be also connected with test receiver, mobile device is connected with below the areflexia camera bellows, the mobile device can drive areflexia
Camera bellows is moved.
2. near field far field according to claim 1 multifunctional test system, it is characterised in that the test receiver frequency spectrum
Instrument or Network Analyzer.
3. near field far field according to claim 1 multifunctional test system, it is characterised in that the near-field test equipment bag
Include supporting construction, arch ring, electronic box, multiple radio-frequency radiation signal sampling probes, pole, luggage carrier, turntable, servomotor, radio frequency
Radiation signal sampling probe is uniformly arranged on arch ring according to certain angle interval, and arch ring is fixed on the support structure.
4. near field far field according to claim 1 multifunctional test system, it is characterised in that the microwave signal source with it is micro-
The vertical range of areflexia camera bellows is 3.0-3.5m.
5. near field far field according to claim 1 multifunctional test system, it is characterised in that the case of the areflexia camera bellows
The volume of body is 1.5 meters × 1.5 meters × 1.5 meters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710357209.7A CN106970272A (en) | 2017-05-19 | 2017-05-19 | Near field far field multifunctional test system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710357209.7A CN106970272A (en) | 2017-05-19 | 2017-05-19 | Near field far field multifunctional test system |
Publications (1)
| Publication Number | Publication Date |
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| CN106970272A true CN106970272A (en) | 2017-07-21 |
Family
ID=59326304
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710357209.7A Pending CN106970272A (en) | 2017-05-19 | 2017-05-19 | Near field far field multifunctional test system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109085565A (en) * | 2018-06-21 | 2018-12-25 | 北京理工雷科电子信息技术有限公司 | A kind of miniaturization mm wave RF test platform |
| CN112526220A (en) * | 2019-09-17 | 2021-03-19 | 中车长春轨道客车股份有限公司 | Test apparatus, test method, computer device, and storage medium |
| CN113341355A (en) * | 2021-05-08 | 2021-09-03 | 中国舰船研究设计中心 | Three-dimensional space electromagnetic field distribution measuring system and testing method |
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| CN204129122U (en) * | 2014-10-22 | 2015-01-28 | 深圳市新益技术有限公司 | A kind of Multi probe near field antenna test macro |
| CN204649862U (en) * | 2015-05-08 | 2015-09-16 | 陈奕铭 | A kind of Multi probe near field antenna test macro |
| CN105635728A (en) * | 2014-10-31 | 2016-06-01 | 陕西盛迈石油有限公司 | Far-field testing system |
| CN205643543U (en) * | 2016-03-22 | 2016-10-12 | 深圳市新益技术有限公司 | 24 probe near field antenna test system |
| CN106199218A (en) * | 2016-06-29 | 2016-12-07 | 四川莱源科技有限公司 | Novel Multi probe near field antenna measurements device |
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2017
- 2017-05-19 CN CN201710357209.7A patent/CN106970272A/en active Pending
Patent Citations (6)
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| CN201311468Y (en) * | 2008-12-09 | 2009-09-16 | 江扬科技(无锡)有限公司 | Simulation distant field test system of low noise amplification frequency demultiplier |
| CN204129122U (en) * | 2014-10-22 | 2015-01-28 | 深圳市新益技术有限公司 | A kind of Multi probe near field antenna test macro |
| CN105635728A (en) * | 2014-10-31 | 2016-06-01 | 陕西盛迈石油有限公司 | Far-field testing system |
| CN204649862U (en) * | 2015-05-08 | 2015-09-16 | 陈奕铭 | A kind of Multi probe near field antenna test macro |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109085565A (en) * | 2018-06-21 | 2018-12-25 | 北京理工雷科电子信息技术有限公司 | A kind of miniaturization mm wave RF test platform |
| CN109085565B (en) * | 2018-06-21 | 2023-03-10 | 北京理工雷科电子信息技术有限公司 | Miniaturized millimeter wave radio frequency test platform |
| CN112526220A (en) * | 2019-09-17 | 2021-03-19 | 中车长春轨道客车股份有限公司 | Test apparatus, test method, computer device, and storage medium |
| CN113341355A (en) * | 2021-05-08 | 2021-09-03 | 中国舰船研究设计中心 | Three-dimensional space electromagnetic field distribution measuring system and testing method |
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Application publication date: 20170721 |