CN109581081A - Car antenna test method and single probe spherical surface near field sampling device - Google Patents
Car antenna test method and single probe spherical surface near field sampling device Download PDFInfo
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- CN109581081A CN109581081A CN201910015154.0A CN201910015154A CN109581081A CN 109581081 A CN109581081 A CN 109581081A CN 201910015154 A CN201910015154 A CN 201910015154A CN 109581081 A CN109581081 A CN 109581081A
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- 239000000523 sample Substances 0.000 title claims abstract description 43
- 238000005070 sampling Methods 0.000 title claims abstract description 21
- 238000010998 test method Methods 0.000 title claims abstract description 15
- 238000012360 testing method Methods 0.000 claims abstract description 26
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims abstract description 12
- 238000009434 installation Methods 0.000 claims abstract description 4
- 238000010586 diagram Methods 0.000 claims description 9
- 229910000831 Steel Inorganic materials 0.000 claims description 7
- 239000010959 steel Substances 0.000 claims description 7
- 238000010276 construction Methods 0.000 abstract description 6
- 230000001603 reducing effect Effects 0.000 abstract description 2
- 238000005259 measurement Methods 0.000 description 15
- 238000004891 communication Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 238000000691 measurement method Methods 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 239000011358 absorbing material Substances 0.000 description 1
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- 230000009977 dual effect Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000010287 polarization Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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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
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R15/00—Details of measuring arrangements of the types provided for in groups G01R17/00 - G01R29/00, G01R33/00 - G01R33/26 or G01R35/00
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Abstract
The invention discloses a kind of car antenna test method and single probe spherical surface near field sampling devices, which is characterized in that it includes antenna near-field test step, Antenna Far Field test step.Single probe spherical surface near field sampling device, which is characterized in that the pedestal including being preset at underground；The steelframe of installation on the base；Arc-shaped rack；Tank chain type guide rail；Be arranged in probe base on arc-shaped rack and the rotation of control steelframe, probe base along arc-shaped rack back and forth movement servo motor, the steelframe includes vertical support frame and arc steelframe, and the arc-shaped rack and tank chain type guide rail are arranged on arc steelframe.Flexibly, intelligence sample problem crucial in car antenna vehicle measuring system is accurately solved, interference is not generated to other measuring systems in shared place；Indoor single probe spherical surface near field sampling device reducings the construction costs, improves testing efficiency, sampling location accurate can control.
Description
Technical field
The present invention relates to car antenna the field of test technology, are specifically related to a kind of car antenna test method and single probe
Spherical surface near field sampling device.
Background technique
Automobile has become the requirement of current people's lives, and other than having communication function conveniently, safely, automobile is also
As complex communication terminal, such as: broadcast, TV, mobile Internet, mobile phone, bluetooth, automatic fee, navigation, automatic Pilot
Deng being integrated into automobile, a variety of communication equipment high concentrations are in automobile in extremely complex electromagnetic environment, will
The control system of vehicle safety travel is had an impact, ride safety of automobile hidden danger is increased, in automobile research and development, it is necessary to installation
Careful design and measurement are carried out in the radiation characteristic of the communication antenna of automobile different location, parameter is designed as automobile EMC
Important evidence.However automobile frame is the labyrinth being made of metal material, the influence by simulation calculation to aerial radiation
Modeling process is extremely complex, and operand is very big, and accuracy is not high, is all to obtain data using directly measurement in actual operation.
The vehicle measurement place of pattern multiplicity is all had in external vehicle enterprise, and the country only has extremely individual vehicle checkout areas, mainly because construction needs
The place wanted is big, and close, far field combines, system complex, and construction cost is very high.Due to the various communication days installed and used in automobile
Line working frequency is different, covers very wide, it is necessary to be combined near field test system and far field test system and solve antenna spoke
Penetrate performance measurement problem.
Near-field measurement technique represents the developing direction of antenna measurement.The advantages of its technology is: required place is small, can
To carry out high-precision measurement in microwave dark room, the difficulty for building large-scale microwave dark room is eliminated.Near-field measurement technique is by week
The influence in collarette border is minimum, and guarantee is round-the-clock can to go on smoothly three-dimensional space holographic measurement, quickly provides antenna three-dimensional
Whole indexs of figure and the advanced technology of three-dimensional holographic data.Near field measurement is applied to car antenna measurement and other measurement days
The requirement of line is different, one is the covering of operating frequency of antenna used in automobile is very wide, from 500KHz -6000GHz, than general
Communication antenna is more extended to low frequency；The second is the volume and weight of automobile itself, test table that loading capacity is big and is needed very much
Large-sized scanning support is just able to achieve precise measurement, the third is only needing to measure ground area above, does not need comprehensive measurement.
Car antenna radiance index and measurement method, there is presently no unified international standard, external vehicle enterprise is all pressed
It is executed according to self-ordained company standard；Domestic vehicle enterprise substantially refers to foreign enterprise's standard, and national standard is also under discussion.Therefore, domestic
Few antenna measurement fields that can measure vehicle, external checkout area are all to build early stage, in order to meet now constantly extension
Frequency requirement, can only continuous transformation and upgrade.There are " singly encircleing for 90 ° of probe in indoor near field ", " indoor near field ball in the place that foreign countries use
Face Multi probe " and outdoor field, because by weather and spatial electromagnetic wave action, service efficiency is low, poor accuracy is no longer examined for outdoor field
Consider construction.
Indoor near field test system performance compares
We have proposed a kind of novel " indoor single probe spherical surface near field sampling devices ", and the present apparatus is different from other measurement systems
System, has innovation in terms of reducining the construction costs, improving testing efficiency, sampling location.
Summary of the invention
The object of the invention is to the one kind provided to solve the deficiency of the prior art flexibly, accurately solve automobile
Crucial intelligence sample problem in antenna vehicle measuring system does not generate the vapour of interference to other measuring systems in shared place
Vehicle mounted antenna test method.
It is a further object of the present invention to provide a kind of structure is simple, reasonable single probe spherical surface near field sampling device is designed.
The present invention is that a kind of car antenna test method is attained in that using following technical solution, special
Sign is that it includes antenna near-field test step, Antenna Far Field test step, and antenna near-field test step mainly uses network
The first port of analyzer emits frequency band signals, is issued by transmitting antenna, the second port of Network Analyzer is to tested antenna
The signal received is analyzed, and is calculated near field and is received level.
As a further illustration of the above scheme, the Antenna Far Field test step is mainly use Network Analyzer the
Single port emits frequency band signals, is issued by transmitting antenna, the letter that the second port of Network Analyzer receives tested antenna
It number is analyzed, calculates far field and receive level.
As a further illustration of the above scheme, the transmitting antenna vertical guide surround turntable middle shaft rotation, obtain by
Directional diagram of the observation line in the face E.
As a further illustration of the above scheme, the tested antenna is rotated in place in horizontal plane, tested antenna is obtained in H
The directional diagram in face.
A kind of single probe spherical surface near field sampling device, which is characterized in that the pedestal including being preset at underground；It is mounted on pedestal
On steelframe；Arc-shaped rack on steelframe and tank chain type guide rail are set；Probe base on arc-shaped rack is set
With the rotation of control steelframe, the servo motor by tank chain type guide rail control probe base along arc-shaped rack back and forth movement, institute
Stating steelframe includes vertical support frame and arc steelframe, and the arc-shaped rack and tank chain type guide rail are arranged on arc steelframe.
As a further illustration of the above scheme, having concentrated all pilots, radio frequency in the tank chain type guide rail
Cable, power supply line, described tank chain type guide rail one end are fixed on circular arc shaped steel frame, and one end connects probe base with probe base
Mobile, the tank chain type guide rail front half section is provided with guide wheel and is fixed on steelframe.
As a further illustration of the above scheme, being equipped with extending arm above the steelframe, two are provided on the extending arm
Pull line, pull line one end connection pedestal other end connect arc steelframe.
As a further illustration of the above scheme, the rack gear arc of the arc-shaped rack is greater than 90 degree, it is described arc-shaped
Rack gear is screwed on the edge of arc steelframe.
As a further illustration of the above scheme, steelframe described in the Serve Motor Control is rotated around pedestal axle center, it is described
The angle of steelframe rotation is 0-90 degree.
The present invention is using the above-mentioned attainable beneficial effect of technical solution:
It is difficult that one kind provided by the invention flexibly, accurately solves intelligence sample crucial in car antenna vehicle measuring system
Topic does not generate the car antenna test method of interference to other measuring systems in shared place.It is provided by the invention indoor single
Probe spherical surface near field sampling device reducings the construction costs, improves testing efficiency, sampling location accurate can control.
Detailed description of the invention
Fig. 1 show the near-field test schematic diagram of car antenna test method of the invention；
Fig. 2 show the far field test schematic diagram of car antenna test method of the invention；
Fig. 3 show the structural schematic diagram of single probe spherical surface near field sampling device of the invention.
Description of symbols:
1: steelframe, 2: arc-shaped rack, 3: pedestal, 4: pull line, 5: tank chain type guide rail, 6: probe base, 7: visiting
Head, 8: turntable.
Specific embodiment
The technical program is explained in detail below in conjunction with specific embodiment.
As Figure 1-Figure 2, a kind of car antenna test method, including car antenna near-field test process and car antenna
Far field test process, the car antenna near-field test process mainly use the first port of Network Analyzer to emit frequency range letter
Number, it is issued by transmitting antenna, the signal that the second port of Network Analyzer receives tested antenna is analyzed, and is calculated
Near field receives level.Transmitting antenna surrounds 8 middle shaft rotation of turntable in vertical guide, and tested antenna can be obtained in the directional diagram in the face E.
Antenna Far Field test step mainly uses the first port of Network Analyzer to emit frequency band signals, is sent out by transmitting antenna
Out, the signal that the second port of Network Analyzer receives tested antenna is analyzed, and is calculated far field and is received level.Quilt
Observation line is rotated in place in horizontal plane, and tested antenna can be obtained in the directional diagram in the face H.
As shown in figure 3, a kind of single probe spherical surface near field sampling device, which is characterized in that the pedestal including being preset at underground
3；The steelframe 1 of installation on the base；Arc-shaped rack 2；Tank chain type guide rail 5；Probe base 6 on arc-shaped rack is set
The servo motor moved with the rotation of control steelframe, probe base along arc-shaped rack, the steelframe includes vertical support frame and arc
Shaped steel frame, the arc-shaped rack 2 and tank chain type guide rail 5 are arranged on arc steelframe.
Preferably, all pilots, radio-frequency cable, power supply line, the tank chain have been concentrated in tank chain type guide rail 5
5 one end of formula guide rail is fixed on arc steelframe, and one end connects probe base 6 with probe base movement, the tank chain type guide rail 5
Upper semisection is provided with guide wheel and is fixed in arc steelframe.Serve Motor Control steelframe 1 is rotated around 3 axle center of pedestal, and the steelframe 1 revolves
The angle turned is 0-90 degree.Probe base 6, along arc rack back and forth movement, can be moved continuously under Serve Motor Control,
Any designated position on track can be run to stepping.Probe 7 is a pair of mutually orthogonal dual polarization structure, be can be
A pair of of a period of time is also possible to printed wire composition, and the suitable probe of selection is mounted on probe base according to actual needs.
It is further preferred that the rack gear arc of arc-shaped rack 2 is greater than 90 degree, the arc-shaped rack 2 is screwed
On steelframe.Steelframe 1 is by welding fabrications such as the steel pipes, I-steel, channel steel of different size, and steelframe 1 and arc-shaped rack 2 can be with
Parts processing, on-site assembly, outer surface is seamless stickup microwave absorbing material.Extending arm, the extending arm are equipped with above steelframe
Upper to be provided with two pull lines, 4 one end of pull line connection pedestal other end connects arc-shaped rack, in order to prevent steel
Frame is because gravity causes to deform under vertical state, and in steelframe extending arm upper end, different location devises two pull lines, is used to
Calibrate the precision of arc-shaped rack.
Compared with prior art, the present invention the present invention, which provides one kind, flexibly, accurately solves car antenna vehicle measurement system
Crucial intelligence sample problem in system does not generate the car antenna test side of interference to other measuring systems in shared place
Method；Single probe spherical surface near field sampling apparatus structure is simple, and design is reasonable.
What has been described above is only a preferred embodiment of the present invention, it is noted that for those of ordinary skill in the art
For, without departing from the concept of the premise of the invention, various modifications and improvements can be made, these belong to the present invention
Protection scope.
Claims (9)
1. a kind of car antenna test method, which is characterized in that it includes antenna near-field test step, Antenna Far Field test work
Sequence, antenna near-field test step are mainly that the first port of Network Analyzer is used to emit frequency band signals, are issued by transmitting antenna,
The signal that the second port of Network Analyzer receives tested antenna is analyzed, and is calculated near field and is received level.
2. car antenna test method according to claim 1, which is characterized in that the Antenna Far Field test step is main
Frequency band signals are emitted using the first port of Network Analyzer, are issued by transmitting antenna, the second port of Network Analyzer is to quilt
The signal that test antenna receives is analyzed, and is calculated far field and is received level.
3. car antenna test method according to claim 1, which is characterized in that the transmitting antenna is surrounded in vertical guide
Turntable middle shaft rotation obtains tested antenna in the directional diagram in the face E.
4. car antenna test method according to claim 2, which is characterized in that the tested antenna is in horizontal plane original place
Rotation obtains tested antenna in the directional diagram in the face H.
5. a kind of single probe spherical surface near field sampling dress corresponding with car antenna test method described in claim 1-4 any one
It sets, which is characterized in that including being preset at the pedestal of underground, round-arced tooth installation steelframe on the base, be arranged on steelframe
Item and tank chain type guide rail, the rotation of control steelframe, pass through the guide rail control of tank chain type at the probe base being arranged on arc-shaped rack
For probe base processed along the servo motor of arc-shaped rack back and forth movement, the steelframe includes vertical support frame and arc steelframe, institute
It states arc-shaped rack and tank chain type guide rail is arranged on arc steelframe.
6. single probe spherical surface near field sampling device according to claim 5, which is characterized in that in the tank chain type guide rail
Pilot, radio-frequency cable, power supply line are concentrated, described tank chain type guide rail one end is fixed on circular arc shaped steel frame, and one end connects
It is mobile with probe base to connect probe base, the tank chain type guide rail front half section is provided with guide wheel and is fixed on steelframe.
7. single probe spherical surface near field sampling device according to claim 5, which is characterized in that be equipped with and stretch above the steelframe
Swing arm, pull line is arranged on the extending arm, and pull line one end connection pedestal other end connects arc steelframe.
8. single probe spherical surface near field sampling device according to claim 5, which is characterized in that the tooth of the arc-shaped rack
Arc is greater than 90 degree, and the arc-shaped rack is screwed on the edge of arc steelframe.
9. single probe spherical surface near field sampling device according to claim 5, which is characterized in that the Serve Motor Control institute
It states steelframe to rotate around pedestal axle center, the angle of the steelframe rotation is 0-90 degree.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109975641A (en) * | 2019-05-06 | 2019-07-05 | 南京金信智能科技有限公司 | A kind of high-precision, high effective antenna cover test macro |
| CN111579888A (en) * | 2020-06-23 | 2020-08-25 | 石家庄硕华电子科技有限公司 | Annular test jig for antenna test |
| CN116400143A (en) * | 2023-06-08 | 2023-07-07 | 北京中科睿信科技有限公司 | Method, equipment and medium for sampling plane near field data |
| CN117554657A (en) * | 2024-01-10 | 2024-02-13 | 中国汽车技术研究中心有限公司 | Auxiliary installation fixing device and fixing method for vehicle |
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| CN108241095A (en) * | 2016-12-23 | 2018-07-03 | 刘科宏 | A kind of Multi probe and single probe integrated test system and test method |
| CN209570644U (en) * | 2019-01-08 | 2019-11-01 | 广东星磁检测技术研究有限公司 | Single probe spherical surface near field sampling device |
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2019
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109975641A (en) * | 2019-05-06 | 2019-07-05 | 南京金信智能科技有限公司 | A kind of high-precision, high effective antenna cover test macro |
| CN111579888A (en) * | 2020-06-23 | 2020-08-25 | 石家庄硕华电子科技有限公司 | Annular test jig for antenna test |
| CN116400143A (en) * | 2023-06-08 | 2023-07-07 | 北京中科睿信科技有限公司 | Method, equipment and medium for sampling plane near field data |
| CN117554657A (en) * | 2024-01-10 | 2024-02-13 | 中国汽车技术研究中心有限公司 | Auxiliary installation fixing device and fixing method for vehicle |
| CN117554657B (en) * | 2024-01-10 | 2024-03-22 | 中国汽车技术研究中心有限公司 | Auxiliary installation fixing device and fixing method for vehicle |
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