ABB260A

Radome matching test system

Version: V1.0

一. System design principle

  In millimeter wave radar antenna radome backend, at the same time, the front end of the car millimeter wave radar module sometimes has the skin, such as bumper or logo which layer radome is bound to affect the direction of radar chart into deformity, and lead to the deterioration of radar detection power chart and detecting target Angle error, so in order to achieve the best performance of millimeter wave radar, At the same time of testing the electrical thickness parameters of radome, it is necessary to optimize the attitude matching between radome and radome.

  The ABB260A system is specially designed to test the transmittance, reflectance and electrical thickness uniformity of millimeter wave radome. At the same time, the attitude optimization matching test of MMW radar and radome can be completed with the radar target simulator of Keysight, so that the MMW radar can work in the optimal state.

二、 system characteristics

• millimeter wave radar radome multi-function test system
  

• supports dielectric constant parameter measurement of radome
  

• supports testing of the near field antenna pattern of millimeter wave radar
  

• supports testing of rf performance of millimeter wave radar
  

• supports attitude optimization test of millimeter wave radar and radome
  

• selects two 6-axis mechanical arms, which is flexible and convenient
  

• system operates in a full radio anechoic chamber and eliminates environmental interference to the radar
  

• compatible keysight vector network analyzer
  

• supports testing of 24GHz, 60GHz, 77GHz, 79GHz radar
  

• system provides a radar communication protocol compiler, which is compatible with multiple protocol radars
  

• Supports the test remaining time reservation test function
  

• System test is intuitive, simple and convenient;
  

• frequency range: Compatible with various radar standards
  

三、main technical indicators

• compatible radar standard: 24GHz, 60GHz, 77GHz, 79GHz (associated with system RF link)
  

• radome material test parameters: dielectric constant, loss Angle tangent
  

• Radar antenna RADIO frequency test parameters: gain, 2D/3D direction diagram, beam width, beam pointing, side-lobe electrical equality
  

• radar RADIO frequency test parameters: frequency, bandwidth, gain, power flatness, etc

• radar/radome synthesis parameter: direction diagram distortion, optimal attitude verification

• horizontal Angle range: ±65º

• pitching Angle range: ±25º

• radar X, Y, Z adjustment range: ±200mm

• matching darkroom size: 4 m ×4 m ×4 m
  

• absorbing material vertical absorption: ≧45dB@20GHz~90GHz

• system dynamic range: 50dB
  

• use temperature: 0℃~+45℃
  

• storage temperature: -25℃~+70℃
  

• Uses humidity: 5% to 95% RH
  

• uses power: 380V±10%, 50Hz
  

四、 System composition

• all-electric anechoic chamber
  

• Small 6-axis manipulator
  

• Large 6-axis manipulator
  

• test system modifies the turntable
  

• System RADIO frequency link
  

• test system software
  

五、Radio frequency link

  The radio frequency link of the system is compatible with Keysight brand test instrument design, PNA network analyzer as the main body, supporting two automatic 6-axis manipulator; The rf link of millimeter wave radar is based on spectrum analyzer and radar target simulator. Support user instrument upgrade;

Figure 1: Test system RF link

六、System software

Figure 2: Interface of test system self-calibration software

Figure 3: Electrical thickness uniformity testing software interface of radome

Figure 4: Test system software power diagram interface

This system provides perfect system testing software:

• antenna testing software: 2D/3D direction diagram, gain, sidelobe level, efficiency, beam width, etc.
  

• Tx signal quality analysis: 2D/3D direction diagram, gain, bandwidth, phase noise, FMCW modulation linearity, etc
  

• Tx signal quality analysis: 2D/3D direction diagram, frequency, sensitivity, and other parameters
  

• radar target simulation: range, velocity, RCS range/accuracy/resolution, static/dynamic target simulation, power diagram
  

• radome: dielectric constant, tangent of loss Angle, electrical thickness uniformity, wave permeability, reflection performance
  

• radar/radome attitude matching test: optimal attitude optimization
  

• software supports user-defined development of user DUT communication protocol, supports automation system and generates test report in user format;