有源相控阵天线近场测试方法研究  

Study on Near Field Test Method of Active Phased Array Antenna

作　　者：方鑫[1] Fang Xin(No.38 Research Institute of CETC,Hefei 230088)

机构地区：[1]中国电子科技集团公司第三十八研究所,合肥230088

出　　处：《火控雷达技术》2017年第4期73-75,共3页Fire Control Radar Technology

摘　　要：天线测试是有源相控阵雷达设计中的重要组成部分,介绍了平面近场测试系统的搭建和测试方法,以及利用平面近场测试系统的口面场进行反演,从而快速测试出有源相控阵雷达天线波瓣的相关性能,实测某Ku天线副瓣电平低于-25d B,扫描指向精度,增益等指标满足设计指标要求。为完成宽带有源相控阵天线的性能测试提供了有效的方法。Antenna test is key part in active phase array radar design.Set up of planar near field test system and test method is presented,and inversion is performed by using aperture filed of planar near field test system so as to test relative performance of active phased array radar antenna.The measured Ku band antenna sidelobe level is less than-25dB,and index like scanning pointing accuracy,gain can meet requirement for design index.This provides effective method to accomplish performance test of wideband active phased array antenna.

关 键 词：低副瓣 有源相控阵天线 平面近场 

分 类 号：TN97[电子电信—信号与信息处理]