摘要
针对球面近场测量中给出的角度采样间隔区间范围,提出了一种确定角度采样间隔计算公式中参数D取值范围的方法.首先计算了仿真模型下不同角度采样间隔的方向图,并分析了其对测量精度影响;然后对两个不同频率不同类型的天线进行了实际测试,研究了角度采样间隔对测试精度的影响.仿真结果和测试结果表明,利用参数D≥5来确定角度采样间隔,能够得到较高的测量精度.这为球面近场天线测量应用提供了一种简便方法.
This paper aims at the range of angle sampling interval given in spherical near-field measurement to propose a method of determining the value range of parameter D in the calculation formula of angle sampling interval.Firstly,the paper calculates the radiation pattern of different angle sampling intervals under the simulation model,and analyzes its influence on the measurement accuracy.Then the paper tests two antennas with different frequencies and different types,and also studies the influence of angle sampling interval on test accuracy.Simulation and test results show that a higher measurement accuracy can be obtained by using the parameter D≥5 to determine the angle sampling interval.This provides a simple method for spherical near-field antenna measurement.
作者
张重阳
高振国
汪尊武
ZHANG Chongyang;GAO Zhenguo;WANG Zunwu(No.38 Research Institute,China Electronics Technology Group Corporation,Hefei 230088,China;The First Military Representative Office of Air force Equipment Department in Hefei,Hefei 230088,China)
出处
《空军预警学院学报》
2021年第5期332-336,共5页
Journal of Air Force Early Warning Academy
关键词
球面近场
角度采样间隔
天线测量
仿真分析
spherical near-field
angle sampling interval
antenna measurement
simulation analysis
