【作者】 李华军； 魏平； 孟东林； 刘潇； 王维龙； 张晓平； 东君伟；

【Author】 LI Huajun;WEI Pin;MENG Donglin;LIU Xiao;WANG Weilong;Dong Junwei;ZHANG Xiaoping;Chengdu Aireraft Industrial(Group) Co.,Ltd;National Institute of Metrology-NIM;Fragrant mountain microwave co.,ltd;Beijing Institute of Spacecraft System Engineering;

【机构】 成都飞机工业(集团)有限责任公司； 中国计量科学研究院； 北京空间飞行器总体设计部； 中山香山微波科技有限公司；

【摘要】 对比分析了天线方向图精密测量技术的最新进展和量值互相验证过程。在微波遥感和深空探测等领域,人们期待能够获得精准的天线方向图以便通过反演可见度函数得到真实的观测结果。然而,目前缺乏定量化地研究不同方法的测量误差,尤其是相位方向图测量误差的研究更少。本文从计量角度,精简地展示了一个天线量值准确性互相验证的过程,分别针对标准增益喇叭天线和6个阵元的线阵,定量化对比分析了远场法、平面近场、柱面近场、球面近场法、紧缩场法和矩量法所得方向图的准确程度。更多还原

【Abstract】 The recent progress on the technology of precisely measuring antenna radiation pattern has been provided with mutual verifications.In microwave remote sensing and deep space exploration,accurate antenna patterns are required in the visible unction to eliminate the influences of antennae to get the "true" results to be sensed.However,there is not enough research on the uncertainties in measuring antenna pattern with differepresent methods,and,especially no enough research on the uncertainty in phase.In this paper,brief results are provided metrologically and comparatively on the accuracy of different methods for standard gain horn antennas and a linear array.Brief results are provided with three near-field methods(planar,cylindral,spherical),a far-field method,a compact test range and the Method of Moment.更多还原