相控阵天线指向测量误差分析及消除方法研究  

Analysis of the Measurement Errors of Phased Array Antenna Beam Pointing and Its Elimination Method

作　　者：韩旭 于大群[1,2] HAN Xu;YU Da-qun(The 14th Research Institute of CETC,Nanjing 210039,China;Science and Technology on Antenna and Microwave Laboratory,Nanjing 210039,China)

机构地区：[1]中国电子科技集团公司第十四研究所,南京210039 [2]天线与微波技术重点实验室,南京210039

出　　处：《微波学报》2023年第2期52-57,共6页Journal of Microwaves

摘　　要：电扫波束指向精度是相控阵天线的核心指标之一,对波束指向进行准确测量是对系统工作能力进行评估的必要手段。文中以某相控阵天线为例,详细分析了几种外场波束指向测试中常见的外部误差。通过理论分析建立仿真模型,计算分析以上因素对天线指向测试的影响,并提出一种在波束指向测试过程中消除误差的优化方法。经试验比对,所提出的优化方法可以明显降低测试误差,提高测试结果的准确度和可信度,对同类型天线的外场测试和系统性能评估具有重要的工程参考价值。Electrical scanning beam pointing accuracy is one of the key indicators of phased array antenna.Beam pointing measurement accuracy is a necessary method to evaluate the working ability of the system.Taking a phased array antenna as an example,the common external errors in the field beam pointing test are analyzed in detail.The simulation model is established through theoretical analysis,and the influence of the above factors on antenna pointing test is calculated and analyzed,and an optimization method for eliminating errors in the process of beam pointing test is proposed.The experimental results show the proposed optimization method can significantly reduce the measurement errors.The method can also improve the accuracy and reliability of the test result.The method has important engineering reference value for the field test and system performance evaluation of the same type antenna.

关 键 词：相控阵天线 指向精度 外场测试 测试误差 优化方法 

分 类 号：TN821.8[电子电信—信息与通信工程]