环境一号C星SAR天线设计与分析  

Design and Analysis of HJ-1-C Satellite SAR Antenna

作　　者：郑士昆[1] 冀有志[1] 崔兆云[1] 方永刚[1] 周丽萍[1] 

机构地区：[1]中国空间技术研究院西安分院,西安710100

出　　处：《雷达学报（中英文）》2014年第3期266-273,共8页Journal of Radars

基　　金：国家重大专项资助课题

摘　　要：环境一号C星SAR天线采用了构架式可展开网状抛物面反射器,天线构型复杂,在轨展开步骤多,天线展开可靠性及在轨电气性能等都是设计难点。该文阐述了天线总体、结构和电气方面的设计研究,并从力学和热角度进行了实际工况的分析。环境一号C星在轨成功展开及良好的SAR成像质量表明了天线在机电热及可靠性设计方面满足型号工程的使用要求,为集中式网状抛物面SAR天线的设计研究提供了宝贵经验。With truss deployable mesh parabolic reflector, the HJ-1-C SAR antenna has complex structure and multiple steps during the deployed processing. The design of the antenna is difficult in terms of deployed reliability and electrical performance. This paper makes intensive research on system, structure and electrical design, and the analysis of mechanical and thermal performance in the actual space conditions is also presented. The successful deploying in orbit and high image quality of the HJ-I-C satellite indicate that the mechanical, electronic, thermal and reliability design of the antenna satisfy the project requirement, and these research provides valuable experience for the design of the centralized mesh parabolic SAR antenna.

关 键 词：SAR天线 构架式可展开反射器 结构设计 力学分析 热分析 

分 类 号：V44[航空宇航科学与技术—飞行器设计] TN957.2[电子电信—信号与信息处理]