星载大口径太赫兹反射面天线设计与实现  

Design and implementation of a space-borne reflector antenna operating at terahertz frequency

作　　者：施锦文[1] 周卫来[1] 禹旭敏[1] 马凤军[1] SHI Jinwen;ZHOU Weilai;YU Xumin;MA Fengjun(China Academy of Space Technology,Xi’an Shaanxi,710100,China)

机构地区：[1]中国空间技术研究院西安分院

出　　处：《太赫兹科学与电子信息学报》2019年第3期373-378,共6页Journal of Terahertz Science and Electronic Information Technology

基　　金：国家“十二五”民口863重点预研资助项目(Y13-863M-01)

摘　　要：为解决大口径太赫兹反射面天线工程实现的难题,提出了一套口径 2.5 m 的星载太赫兹天线系统。该天线由大口径反射面天线和准光学馈电网络组成,可以接收 183 GHz 微波电磁信号。详细介绍了天线系统电性能仿真分析与大口径反射器的结构方案,对加工完成的大口径太赫兹天线系统进行了电性能测试,实测天线主波束效率达到 90.2%,能够满足静止轨道卫星载荷的应用需求。A THz space-borne reflector antenna with an aperture of 2.5 m is presented. The antenna, which could receive electromagnetic signals at 183 GHz, is composed of the reflector antenna and quasi-optical feeding network. Its electrical performance is given, and the structural scheme is presented as well. The measurement of main beam efficiency achieves 90.2%, which could meet the specification of the GEO remote sensing satellites. It realizes a space-borne reflector antenna operating at terahertz frequency.

关 键 词：反射面天线 准光学馈电网路 电性能仿真 结构方案 电性能测试 

分 类 号：TN82[电子电信—信息与通信工程]