遥感卫星地面站12米口径天线Ka频段G/T值测试方法综述  

A review of G/T value test methods in Ka-band for 12-meter antenna of remote sensing receiving system

作　　者：吴威葳 Wu Weiwei(The 10th Research Institute of China Electronics Technology Group Corporation,Chengdu 610036,China)

机构地区：[1]中国电子科技集团公司第十研究所,四川成都610036

出　　处：《电子技术应用》2024年第7期107-113,共7页Application of Electronic Technique

摘　　要：Ka频段G/T值是遥感卫星地面站12米口径天线最重要的指标之一,其测试方法与遥感站目前常用的X频段测试方法相比,适用条件更加严苛,因此如何选取最佳的测试方法成为本文研究的主要内容。首先介绍了Ka频段12米口径天线特点;然后分别论述了分段测试法、信标法、比较法和射电源法的原理及其优缺点,并提出了Ka频段对月测试的这一最方便简洁的测试方法及其修正系数的研究方向;最后通过实测结果进行比较,给出Ka频段G/T值测试方法选取建议,为工程师现场测试提供了科学的指导和参考。Ka-band G/T is one of the most important indicators of 12-meter antenna of remote sensing receiving system.Suitable G/T method is needed in different situations.Combined with the characteristics of 12-meter antenna,this paper discusses the advantages and disadvantages of segmented method,beacon method,comparative method and radio frequency source method.Using the moon as a radio frequency source is brought up in Ka-band G/T test method,and the futrue research direction is pointed out.At last,recommended test method has been provided to engineers based on the test results.

关 键 词：遥感地面站 KA频段 12米天线 G/T值 分段测试法 信标法 比较法 射电源法 

分 类 号：TN98[电子电信—信息与通信工程]