| 星载大口径太赫兹反射面天线设计与实现 |
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| 引用本文： | 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):373-378. |
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| 作者姓名： | 施锦文 周卫来 禹旭敏 马凤军 |
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| 作者单位： | China Academy of Space Technology，Xi’an Shaanxi，710100，China,China Academy of Space Technology，Xi’an Shaanxi，710100，China,China Academy of Space Technology，Xi’an Shaanxi，710100，China and China Academy of Space Technology，Xi’an Shaanxi，710100，China |
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| 基金项目： | 国家“十二五”民口863重点预研资助项目(Y13-863M-01) |
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| 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。
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| 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 |
| 收稿时间： | 2018/12/5 0:00:00 |
| 修稿时间： | 2019/1/13 0:00:00 |
Design and implementation of a space-borne reflector antenna operating at terahertz frequency |
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| SHI Jinwen,ZHOU Weilai,YU Xumin and 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):373-378. |
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| Authors: | SHI Jinwen ZHOU Weilai YU Xumin and MA Fengjun |
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| 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. |
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