CN110501579A - Far field test system and its test method for millimeter wave antenna - Google Patents
Far field test system and its test method for millimeter wave antenna Download PDFInfo
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- CN110501579A CN110501579A CN201910670112.0A CN201910670112A CN110501579A CN 110501579 A CN110501579 A CN 110501579A CN 201910670112 A CN201910670112 A CN 201910670112A CN 110501579 A CN110501579 A CN 110501579A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25J—MANIPULATORS; CHAMBERS PROVIDED WITH MANIPULATION DEVICES
- B25J9/00—Programme-controlled manipulators
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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
- G01R29/105—Radiation diagrams of antennas using anechoic chambers; Chambers or open field sites used therefor
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Robotics (AREA)
- Mechanical Engineering (AREA)
- Electromagnetism (AREA)
- General Physics & Mathematics (AREA)
- Variable-Direction Aerials And Aerial Arrays (AREA)
Abstract
The present invention provides a kind of far field test systems and its test method for millimeter wave antenna, comprising: micro-wave screening darkroom；The six shaft mechanical arm subsystems and far field beacon subsystem being set in the shielded anechoic chamber, wherein for installing millimeter wave antenna to be tested on six shaft mechanical arm subsystems；It is set to the indoor test industrial personal computer of test and vector network analyzer, test industrial personal computer is connect with vector network analyzer, far field beacon subsystem and six shaft mechanical arm subsystem communications respectively, and the signaling interface of vector network analyzer is respectively connected to millimeter wave antenna to be tested and far field beacon subsystem.The present invention is connect with the vector network analyzer, millimeter wave antenna to be tested, far field beacon subsystem and six shaft mechanical arm subsystem communications respectively by testing industrial personal computer, using far field beacon subsystem and the six shaft mechanical arm subsystems for being equipped with millimeter wave antenna to be tested, efficient, the high-precision test to Antenna Far Field characteristic is realized.
Description
Technical field
The present invention relates to a kind of far field test systems and its test method for millimeter wave antenna.
Background technique
Far field test is one kind of antenna radiation characteristics test method.With deep and electronic technology the hair of electromagnetism research
Exhibition, the development and application of millimeter wave antenna have penetrated into the numerous areas such as navigation, communication, electronic countermeasure and radar.Millimeter wave
The measurement method of the index properties of antenna has feasibility from theoretical developments to engineering practice, to millimeter wave antenna far field index
The measurement method of characteristic is studied, and remote field testing method can accurately measure the far-field characteristic of millimeter wave antenna and be applied to work
One of journey practice, and have become the main means of testing of millimeter wave antenna radiation characteristic testing field.With millimeter wave antenna
Production and development, but the index of millimeter wave antenna far field test is various, data volume is big, it is harsh to require measuring accuracy, can be high
Effect has been used as extremely important one of problem to the precise measurement of antenna radiation characteristics, proposes higher want to test macro
It asks.
Traditional far field test system is all to rely on traditional micro-wave screening darkroom and survey to the far field of millimeter wave antenna
Examination is all artificial simultaneously operating, and the degree of automation is low, and the method can introduce systematic error and inefficiency, when with antenna array
Become larger, test frequency increases, the testing time significantly increases.
Summary of the invention
The purpose of the present invention is to provide a kind of far field test systems and its test method for millimeter wave antenna.
To solve the above problems, the present invention provides a kind of far field test system for millimeter wave antenna, comprising:
Micro-wave screening darkroom；
It is set to outside the micro-wave screening darkroom, and the test cabinet adjacent with the micro-wave screening darkroom；
The six shaft mechanical arm subsystems and far field beacon subsystem being set in the shielded anechoic chamber, wherein six axis
For installing millimeter wave antenna to be tested on robot arm subsystem；
It is set to the indoor test industrial personal computer of the test and vector network analyzer, wherein the test industrial personal computer point
It is not connect with the vector network analyzer, far field beacon subsystem and six shaft mechanical arm subsystem communications, the vector network
The signaling interface of analyzer is respectively connected to the millimeter wave antenna to be tested and far field beacon subsystem.
Further, in above system, the size in the micro-wave screening darkroom meets the millimeter wave antenna to be tested
The requirement of frequency range, the shield effectiveness in the micro-wave screening darkroom meet the band requirement of the millimeter wave antenna to be tested.
Further, in above system, the test industrial personal computer by Ethernet respectively with the vector network analysis
Instrument, far field beacon subsystem and six shaft mechanical arm subsystems are communicatively coupled.
Further, in above system, the six shaft mechanicals arm subsystem includes:
Six shaft mechanical arms, the six shaft mechanicals arm have freely controlling for first, second, third and fourth, five and six axis, it is described to
Test millimeter wave antenna is installed on the 6th axis of the six shaft mechanicals arm；
With the servo controller of six shaft mechanicals arm communication connection；
The programmable logic controller (PLC) communicated to connect respectively with the servo controller and test industrial personal computer.
Further, in above system, the nominal load of the six shaft mechanicals arm is not less than the millimeter wave to be tested
The weight of antenna, the motion range of the six shaft mechanicals arm meet the millimeter wave antenna scanning range to be tested.
Further, in above system, comprising:
The mechanical arm mounting platform being set in the shielded anechoic chamber, the six shaft mechanicals arm subsystem is using on-land type
Mode is installed on the mechanical arm mounting platform.
Further, in above system, further includes:
The far field beacon mounting platform being set in the shielded anechoic chamber, the far field beacon subsystem is using on-land type
Mode is installed on the far field beacon mounting platform.
Further, in above system, the far field beacon subsystem includes:
Three axis scanning supports, including sequentially connected X, Z, C axis from the bottom to top, wherein X-axis realizes that the left and right of horizontal direction is moved
Dynamic, Z axis realizes moving up and down for vertical direction, and C axis realizes the rotation of direction of rotation；
The stepper motor driver being separately connected with X, z, C axis of the three axis scanning support；
Antenna horn is installed on the C axis, the movement of X, Z, C axis is controlled by stepper motor driver, and then will installation
It rotates in the antenna horn of the C axis to matched polarization mode.
Another side according to the present invention provides a kind of survey using the above-mentioned far field test system for millimeter wave antenna
Method for testing, comprising:
Test industrial personal computer controls the installation site that six shaft mechanical arm subsystems move to millimeter wave antenna to be tested, with installation
The millimeter wave antenna to be tested is in six shaft mechanical arm subsystems；
The test industrial personal computer controls the six shaft mechanicals arm subsystem and moves to the remote of the millimeter wave antenna to be tested
Field test position；
The test industrial personal computer controls the far field beacon subsystem rotation according to the polarization mode of millimeter wave antenna to be tested
It goes to and the matched polarization mode of millimeter wave antenna to be tested；
Test frequency, output power, intermediate-frequency bandwidth and the survey of the vector network analyzer is arranged in the test industrial personal computer
Ping and the scanning range of the six shaft mechanicals arm subsystem, scanning stepping, be sent respectively to generating test matrix parameter
The vector network analyzer and the six shaft mechanicals arm subsystem；
The vector network analyzer based on the test frequency, output power, intermediate-frequency bandwidth parameter, the far field Xiang Suoshu
Beacon subsystem sends radiofrequency signal；
The far field beacon subsystem is sent to the millimeter wave antenna to be tested and is corresponded to based on the radiofrequency signal received
Radiofrequency signal；
The six shaft mechanicals arm subsystem is based on the test matrix parameter, and the millimeter wave antenna to be tested is driven to oppose
The movement answered, the millimeter wave antenna to be tested are penetrated based on the radiofrequency signal received to what the vector network analyzer was fed back
Frequency signal；
The test industrial personal computer acquires the radiofrequency signal of the feedback from the vector network analyzer, with formed it is described to
Test the far-field characteristic data of millimeter wave antenna.
Compared with prior art, the present invention includes: micro-wave screening darkroom；It is set to outside the micro-wave screening darkroom, and with
The adjacent test cabinet in the micro-wave screening darkroom；Six shaft mechanical arm subsystems and the far field beacon being set in the shielded anechoic chamber
Subsystem, wherein for installing millimeter wave antenna to be tested on the six shaft mechanicals arm subsystem；It is set in the test cabinet
Test industrial personal computer and vector network analyzer, wherein the test industrial personal computer respectively with the vector network analyzer, far field
Beacon subsystem and the connection of six shaft mechanical arm subsystem communications, the signaling interface of the vector network analyzer are respectively connected to described
Millimeter wave antenna to be tested and far field beacon subsystem.The present invention by test industrial personal computer respectively with the vector network analysis
Instrument, millimeter wave antenna to be tested, far field beacon subsystem and the connection of six shaft mechanical arm subsystem communications, utilize far field beacon subsystem
Six shaft mechanical arm subsystems of millimeter wave antenna to be tested are united and be equipped with, realize efficient, high-precision to Antenna Far Field characteristic
Test.
Detailed description of the invention
Fig. 1 is the structure chart of the far field test system for millimeter wave antenna of one embodiment of the invention；
Fig. 2 is the schematic diagram of the six shaft mechanical arms of one embodiment of the invention；
Fig. 3 is the schematic diagram of the far field beacon of one embodiment of the invention；
Fig. 4 is the far field test posture schematic diagram of one embodiment of the invention；
Fig. 5 is the far field test flow chart of one embodiment of the invention；
Wherein, 1- micro-wave screening darkroom, 2- test industrial personal computer, six shaft mechanical arm subsystem of 3-, 4- mechanical arm mounting platform,
The far field 5- beacon mounting platform, the far field 6- beacon subsystem.
Specific embodiment
In order to make the foregoing objectives, features and advantages of the present invention clearer and more comprehensible, with reference to the accompanying drawing and specific real
Applying mode, the present invention is described in further detail.
As shown in Figure 1, the present invention provides a kind of far field test system for millimeter wave antenna, comprising:
Micro-wave screening darkroom 1,
Here, micro-wave screening darkroom provides far field test environment；
It is set to outside the micro-wave screening darkroom 1, and the test cabinet adjacent with the micro-wave screening darkroom 1；
Six shaft mechanical arm subsystems 3 and the far field beacon subsystem 6 being set in the shielded anechoic chamber 1, wherein described six
For installing millimeter wave antenna to be tested on shaft mechanical arm subsystem 3；
It is set to the indoor test industrial personal computer 2 of the test and vector network analyzer, wherein the test industrial personal computer 2
It is communicated to connect respectively with the vector network analyzer, far field beacon subsystem 6 and six shaft mechanical arm subsystems 3, the vector
The signaling interface of Network Analyzer is respectively connected to the millimeter wave antenna to be tested and far field beacon subsystem 6.
Here, the far field test system for millimeter wave antenna of the invention passes through test work according to far-field measurement principle
Control machine 2 respectively with the vector network analyzer, millimeter wave antenna to be tested, far field beacon subsystem 6 and six shaft mechanical arms
System 3 communicates to connect, using far field beacon subsystem 6 and the six shaft mechanical arm subsystems 3 for being equipped with millimeter wave antenna to be tested,
Realize efficient, the high-precision test to Antenna Far Field characteristic.
In one embodiment of far field test system for millimeter wave antenna of the invention, the ruler in the micro-wave screening darkroom 1
The very little requirement for meeting the millimeter wave antenna frequency range to be tested, the shield effectiveness in the micro-wave screening darkroom 1 meets described to be measured
The band requirement of millimeter wave antenna is tried, to guarantee reliable far field test.
In one embodiment of far field test system for millimeter wave antenna of the invention, the test industrial personal computer 2 by with
Too net is communicatively coupled with the vector network analyzer, far field beacon subsystem 6 and six shaft mechanical arm subsystems 3 respectively,
To guarantee communication reliability and communication efficiency.
As shown in Fig. 2, in one embodiment of far field test system for millimeter wave antenna of the invention, six shaft mechanical
Arm subsystem 3 includes:
Six shaft mechanical arms, the six shaft mechanicals arm have freely controlling for first, second, third and fourth, five and six axis, it is described to
Test millimeter wave antenna is installed on the 6th axis of the six shaft mechanicals arm；
With the servo controller of six shaft mechanicals arm communication connection；
The programmable logic controller (PLC) communicated to connect respectively with the servo controller and test industrial personal computer 2.
Here, programmable logic controller (PLC) can receive control signal from test industrial personal computer 2, to control the servo controller
Six shaft mechanical arms are driven to act.
In one embodiment of far field test system for millimeter wave antenna of the invention, the specified of the six shaft mechanicals arm is born
The weight for being not less than the millimeter wave antenna to be tested is carried, the motion range of the six shaft mechanicals arm meets the millimeter to be tested
Wave antenna scanning range, reliably to drive the millimeter wave antenna Positive rotational to be tested by six shaft mechanical arms.
In one embodiment of far field test system for millimeter wave antenna of the invention, further includes:
The mechanical arm mounting platform 4 being set in the shielded anechoic chamber 1, the six shaft mechanicals arm subsystem 3 is using seat ground
The mode of formula is installed on the mechanical arm mounting platform 4.
Here, micro-wave screening darkroom is further equipped with mechanical arm mounting platform 4, six shaft mechanical arm mounting platforms can be according to be measured
Examination millimeter wave antenna size, mounting means etc. provide six rising for shaft mechanical arm and turn space, to guarantee the six shaft mechanicals arm subsystem
The reliable installation and operation of system 3.
In one embodiment of far field test system for millimeter wave antenna of the invention, further includes:
The far field beacon mounting platform 5 being set in the shielded anechoic chamber 1, the far field beacon subsystem 6 is using seat ground
The mode of formula is installed on the far field beacon mounting platform 5.
Here, micro-wave screening darkroom is further equipped with far field beacon mounting platform 5, to guarantee the far field beacon subsystem 6
Reliable installation.
As shown in figure 3, in one embodiment of far field test system for millimeter wave antenna of the invention, the far field beacon
Subsystem 6 includes:
Three axis scanning supports, including sequentially connected X, Z, C axis from the bottom to top, wherein X-axis realizes that the left and right of horizontal direction is moved
Dynamic, Z axis realizes moving up and down for vertical direction, and C axis realizes the rotation of direction of rotation；
The stepper motor driver being separately connected with X, Z, C axis of the three axis scanning support；
Antenna horn is installed on the C axis, the movement of X, Z, C axis is controlled by stepper motor driver, and then will installation
It rotates in the antenna horn of the C axis to matched polarization mode.
Using the test method of the above-mentioned far field test system for millimeter wave antenna, comprising:
Step S1, test industrial personal computer 2 control the peace that six shaft mechanical arm subsystems 3 move to the millimeter wave antenna to be tested
Holding position, to install the millimeter wave antenna to be tested in six shaft mechanical arm subsystems 3；
Step S2, the test industrial personal computer 2 control the six shaft mechanicals arm subsystem move to it is as shown in Fig. 4 described
The far field test position of millimeter wave antenna to be tested；
Step S3, the test industrial personal computer 2 control the far field beacon according to the polarization mode of millimeter wave antenna to be tested
Subsystem rotate to the matched polarization mode of millimeter wave antenna to be tested；
Test frequency and TCH test channel and the institute of the vector network analyzer is arranged in step S4, the test industrial personal computer 2
Scanning range, the scanning stepping for stating six shaft mechanical arm subsystems 3, are sent respectively to the vector net to generate test matrix parameter
Network analyzer and the six shaft mechanicals arm subsystem 3；
Step S5, the vector network analyzer based on the test frequency, output power, intermediate-frequency bandwidth parameter to institute
It states far field beacon subsystem and sends radiofrequency signal；
Step S6, the far field beacon subsystem is based on the radiofrequency signal received, to the millimeter wave antenna to be tested
Send corresponding signal；
Step S7, the six shaft mechanicals arm subsystem 3 are based on the test matrix parameter and drive the millimeter wave to be tested
Antenna makees corresponding movement, and the millimeter wave antenna to be tested is sent based on the signal received to the vector network analyzer
Corresponding feedback signal；
Step S8, the test industrial personal computer 2 acquires the radiofrequency signal of the feedback from the vector network analyzer, with shape
At the far-field characteristic data of the millimeter wave antenna to be tested.
Here, as shown in figure 5, the test industrial personal computer 2 moves to the day to be tested for controlling six shaft mechanical arms
Line installation site, to install the millimeter wave antenna to be tested in six shaft mechanical arms；
After linking millimeter wave antenna Pattern measurement link to be tested, the test industrial personal computer 2 controls six shaft mechanical arms
Subsystem moves to far field test position as shown in Fig. 4；
It is rotated by the C axis that the test industrial personal computer 2 controls the far field beacon subsystem 6 as millimeter wave day to be tested
The polarization mode of lines matching；
Test frequency, output power, the intermediate-frequency bandwidth of the vector network analyzer are set by the test industrial personal computer 2
With the scanning range of TCH test channel and the six shaft mechanicals arm subsystem 3, scanning stepping, started with generating system after test matrix
Pattern measurement is carried out according to the scanning range of setting, the end of scan extracts to obtain pattern data.It specifically, can be according to survey
Examination demand, which is arranged after the sweep parameter of the six shaft mechanicals arm, controls the first axles of six shaft mechanical arms by setting by test industrial personal computer 2
It sets movement parameter and acquires vector network analyzer acquisition data, ultimately form the far-field characteristic number of millimeter wave antenna to be tested
According to.
Each embodiment in this specification is described in a progressive manner, the highlights of each of the examples are with other
The difference of embodiment, the same or similar parts in each embodiment may refer to each other.
Professional further appreciates that, unit described in conjunction with the examples disclosed in the embodiments of the present disclosure
And algorithm steps, can be realized with electronic hardware, computer software, or a combination of the two, in order to clearly demonstrate hardware and
The interchangeability of software generally describes each exemplary composition and step according to function in the above description.These
Function is implemented in hardware or software actually, the specific application and design constraint depending on technical solution.Profession
Technical staff can use different methods to achieve the described function each specific application, but this realization is not answered
Think beyond the scope of this invention.
Obviously, those skilled in the art can carry out various modification and variations without departing from spirit of the invention to invention
And range.If in this way, these modifications and changes of the present invention belong to the claims in the present invention and its equivalent technologies range it
Interior, then the invention is also intended to include including these modification and variations.
Claims (9)
1. a kind of far field test system for millimeter wave antenna characterized by comprising
Micro-wave screening darkroom；
It is set to outside the micro-wave screening darkroom, and the test cabinet adjacent with the micro-wave screening darkroom；
The six shaft mechanical arm subsystems and far field beacon subsystem being set in the shielded anechoic chamber, wherein six shaft mechanical
For installing millimeter wave antenna to be tested on arm subsystem；
Be set to the indoor test industrial personal computer of the test and vector network analyzer, wherein the test industrial personal computer respectively with
The vector network analyzer, far field beacon subsystem and the connection of six shaft mechanical arm subsystem communications, the vector network analysis
The signaling interface of instrument is respectively connected to the millimeter wave antenna to be tested and far field beacon subsystem.
2. being used for the far field test system of millimeter wave antenna as described in claim 1, which is characterized in that the micro-wave screening is dark
The size of room meets the requirement of the millimeter wave antenna frequency range to be tested, described in the shield effectiveness in the micro-wave screening darkroom meets
The band requirement of millimeter wave antenna to be tested.
3. being used for the far field test system of millimeter wave antenna as described in claim 1, which is characterized in that the test industrial personal computer
Communication link is carried out with the vector network analyzer, far field beacon subsystem and six shaft mechanical arm subsystems respectively by Ethernet
It connects.
4. being used for the far field test system of millimeter wave antenna as described in claim 1, which is characterized in that the six shaft mechanicals arm
Subsystem includes:
Six shaft mechanical arms, the six shaft mechanicals arm has freely controlling for first, second, third and fourth, five and six axis, described to be tested
Millimeter wave antenna is installed on the 6th axis of the six shaft mechanicals arm；
With the servo controller of six shaft mechanicals arm communication connection；
The programmable logic controller (PLC) communicated to connect respectively with the servo controller and test industrial personal computer.
5. being used for the far field test system of millimeter wave antenna as claimed in claim 4, which is characterized in that the six shaft mechanicals arm
Nominal load be not less than the weight of the millimeter wave antenna to be tested, the motion range of the six shaft mechanicals arm meet it is described to
Test millimeter wave antenna scanning range.
6. being used for the far field test system of millimeter wave antenna as described in claim 1, which is characterized in that further include:
The mechanical arm mounting platform being set in the shielded anechoic chamber, the six shaft mechanicals arm subsystem is by the way of on-land type
It is installed on the mechanical arm mounting platform.
7. being used for the far field test system of millimeter wave antenna as described in claim 1, which is characterized in that further include:
The far field beacon mounting platform being set in the shielded anechoic chamber, the far field beacon subsystem is by the way of on-land type
It is installed on the far field beacon mounting platform.
8. being used for the far field test system of millimeter wave antenna as described in claim 1, which is characterized in that far field beacon
System includes:
Three axis scanning supports, including sequentially connected X, Z, C axis from the bottom to top, wherein X-axis realizes moving left and right for horizontal direction, Z
Axis realizes moving up and down for vertical direction, and C axis realizes the rotation of direction of rotation；
The stepper motor driver being separately connected with X, Z, C axis of the three axis scanning support；
Antenna horn is installed on the C axis, and the movement of X, Z, C axis is controlled by stepper motor driver, and then will be installed on institute
The antenna horn for stating C axis is rotated to matched polarization mode.
9. using the test method of the far field test system as described in any one of claims 1 to 8 for millimeter wave antenna,
It is characterized in that, comprising:
Test industrial personal computer controls the installation site that six shaft mechanical arm subsystems move to millimeter wave antenna to be tested, described in installation
Millimeter wave antenna to be tested is in six shaft mechanical arm subsystems；
The test industrial personal computer controls the far field survey that the six shaft mechanicals arm subsystem moves to the millimeter wave antenna to be tested
Try position；
The test industrial personal computer according to the polarization mode of millimeter wave antenna to be tested, control the far field beacon subsystem rotate to
With the matched polarization mode of millimeter wave antenna to be tested；
Test frequency, output power, intermediate-frequency bandwidth and the test that the vector network analyzer is arranged in the test industrial personal computer are logical
The scanning range of road and the six shaft mechanicals arm subsystem, scanning stepping, with generate test matrix parameter be sent respectively to it is described
Vector network analyzer and the six shaft mechanicals arm subsystem；
The vector network analyzer based on the test frequency, output power, intermediate-frequency bandwidth parameter, the far field Xiang Suoshu beacon
Subsystem sends radiofrequency signal；
The far field beacon subsystem sends corresponding penetrate based on the radiofrequency signal received, to the millimeter wave antenna to be tested
Frequency signal；
The six shaft mechanicals arm subsystem is based on the test matrix parameter, drives the millimeter wave antenna to be tested to make corresponding
Movement, the millimeter wave antenna to be tested are sent based on the radiofrequency signal received to the vector network analyzer corresponding anti-
Present radiofrequency signal；
The test industrial personal computer acquires the feedback radiofrequency signal from the vector network analyzer, to form the milli to be tested
The far-field characteristic data of Metric wave aerial.
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| CN201910670112.0A CN110501579A (en) | 2019-07-24 | 2019-07-24 | Far field test system and its test method for millimeter wave antenna |
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| CN201910670112.0A CN110501579A (en) | 2019-07-24 | 2019-07-24 | Far field test system and its test method for millimeter wave antenna |
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| CN110554249A (en) * | 2019-09-04 | 2019-12-10 | 中山香山微波科技有限公司 | Far field test system for microwave darkroom |
| CN111447018A (en) * | 2020-03-26 | 2020-07-24 | 中国信息通信研究院 | Millimeter wave multi-terminal grouping test system and method |
| CN111596159A (en) * | 2020-06-11 | 2020-08-28 | 青岛大学 | Electronic system EMI detection and positioning method based on six-axis mechanical arm |
| CN111624415A (en) * | 2020-06-09 | 2020-09-04 | 中国电子科技集团公司第十四研究所 | System and method for testing antenna on robot arm piece |
| CN111751630A (en) * | 2020-07-07 | 2020-10-09 | 马玉丰 | Synchronous pulse generation method of mechanical arm antenna test system |
| CN111865441A (en) * | 2020-06-23 | 2020-10-30 | 北京邮电大学 | System, method and device for measuring packaged antenna |
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Application publication date: 20191126 |