中国空间科学技术

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构架式可展开网状抛物面天线反射器设计和分析

韦娟芳,关富玲,周丽萍,王勇,刘天林   

  1. 浙江大学,浙江大学,西安空间无线电技术研究所,西安空间无线电技术研究所,西安空间无线电技术研究所 杭州310027 ,杭州310027 ,西安710000 ,西安710000 ,西安710000
  • 发布日期:2002-10-25

Design and Analysis of Deployable Parabolic Truss-Mesh Reflector Antenna

Wei Juanfang Guan Fuling (Znejiang University,Hangzhou 310027) Zhou Liping Wang Yong Liu Tianlin (Xi′an Institute of Space Radio Technology,Xi′an 710000)   

  • Published:2002-10-25

摘要： 介绍了一种构架式网状可展开抛物面天线 ,它具有展缩比大 ,质量轻和频段宽等特点 ,可用作小卫星合成孔径雷达天线和其它S、L频段星载通信天线。设计天线的展开尺寸为 2 8m× 6m ,工作在S频段 ,带宽大于 10 0MHz。介绍了天线反射器的结构总体方案和关键部件的结构设计 ,同时对反射器的形面精度、热变形以及刚度等指标进行了分析计算。初步试验结果表明 ,设计方案合理可行

关键词: 反射器, 合成孔径雷达, 抛物面天线, 结构设计, 分析

Abstract: A deployable parabolic reflector of truss mesh antenna i s described.The antenna has the characters of high deployed/stowed ratio,small a rea mass density and broadband frequency.It can be used for Synthetic Aperture R ader(SAR)antenna of small satellite and other S or L band antenna such as mobile satellite antenna.Deployable dimension of the parabolic reflector is 6m×2 8m. The frequency is S band with bandwidth greater than 100MHz.The antenna configura tions and structure design of the key parts are introduced,and the shape error a ssigning,thermal distortion and stiffness is analyzed.The test results of labora tory model show the structure design is practicable and feasible.