东方红三号卫星的机械太阳阵和通信天线

介绍了中德合作研制、生产东方红三号机械太阳阵和通信天线的有关技术和项目的进展情况。机械太阳阵的设计是在经过自行验证的技术基础上进行的,有了这些经验,加上计算机设计优化,能够满足苛刻的质量和刚度要求。通信天线的主要特点是收发共用和全极化复用。它是通过两套7喇叭馈源阵照射极化敏感反射器实现的。天线电性能和结构性能均满足技术要求。

MECHANICAL SOLAR ARRAY AND ANTENNA FOR THE CHINESE DFH-3 SATELLITE SYSTEM

In July 1987 a cooperation contract between China GreatWall Industry Corporation and MBB was signed for the procurement of ma-jorelements of the Chinese C-band communication satellite DFH-3.Development and manufacture of the mechanical solar array and the com-munication antenna form part of this contract,related technical and prog-rammatic aspects are described.The design of the mechanical solar array isbased on flight proven technics.With this experience and a computer aideddesign optimization the severe mass and stiffness requirements could be satis-fied.The communication antenna for the coverage of the People's Republic ofChina is a specific development for DFH-3.Combined transmit/receive func-tion and full polarization multiplexing are the major features that have beenrealized by a polarization sensitive reflector assembly fed by two 7-hornarray clusters,each accommodated by a support structure.An extensive testprogramme proves compliance of electrical and structural performances withthe specifications.