太赫兹科学与电子信息学报, 2019, 17 (3): 373, 网络出版: 2019-07-25
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
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 reflector antenna quasi-optical network electrical simulation structure scheme electrical performance measurement
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。
Abstract
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.
施锦文, 周卫来, 禹旭敏, 马凤军. 星载大口径太赫兹反射面天线设计与实现[J]. 太赫兹科学与电子信息学报, 2019, 17(3): 373. SHI Jinwen, ZHOU Weilai, YU Xumin, MA Fengjun. Design and implementation of a space-borne reflector antenna operating at terahertz frequency[J]. Journal of terahertz science and electronic information technology, 2019, 17(3): 373.
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