中国空间科学技术

中国空间科学技术 ›› 2025, Vol. 45 ›› Issue (1): 24-33.doi: 10.16708/j.cnki.1000-758X.2025.0003

• 陆地探测四号卫星专题 • 上一篇    

星载大口径环形天线的系统设计

冯涛1,*，张庆君2，林坤阳1，王立朋1，张桥1，杨军刚1，肖勇1   

  1. 1.西安空间无线电技术研究所，西安710100
    2.中国空间技术研究院 遥感卫星总体部，北京100094
  • 收稿日期:2024-01-31 修回日期:2024-04-17 录用日期:2024-04-30 发布日期:2025-01-23 出版日期:2025-02-01

System design of spaceborne large aperture perimeter truss antenna

FENG Tao1,*，ZAHNG Qingjun2，LIN Kunyang1，WANG Lipeng1，ZHANG Qiao1，YANG Jungang1，XIAO Yong1   

  1. 1.Xi’an Institute of Space Radio Technology，Xi’an 710100，China
    2.Institute of Remote Sensing Satellite,China Academy of Space Technology，Beijing 100094，China
  • Received:2024-01-31 Revision received:2024-04-17 Accepted:2024-04-30 Online:2025-01-23 Published:2025-02-01

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摘要： 环形可展开天线是星载大口径、超大口径可展开天线的理想结构形式，是高轨遥感、高轨通信卫星应用的关键载荷。星载环形天线是由周边展开桁架和索网系统组成的典型预应力结构，型面精度和展开基频是其主要性能指标。在轨可靠展开是在轨应用的前提，可靠展开是设计的重中之重，以在轨性能指标需求为目标，分析了环形天线各系统参数对在轨性能指标的影响。通过对展开动力系统和传动力系统进行分析，阐述了环形天线各系统参数对展开可靠性的影响，总结了以结构静力学手段评价在轨性能设计和动力学手段评价展开可靠性的方法，明确了通过结构动力学方法进行强度校核和星上锁紧释放设计的星载大口径环形天线系统设计流程，提出了各设计参数的优化策略，并给出了系统设计算例，为未来超大口径星载可展开天线的技术研究和工程研制提供参考。

关键词: 星载环形天线, 在轨性能, 可展开结构, 系统设计, 参数优化策略

Abstract: The perimeter truss antenna is the ideal structure of the spaceborne deployable antenna with very large aperture, which is the key payload for high-orbit communication and high-orbit remote sensing satellite applications. The spaceborne perimeter truss antenna is a typical prestressed structure composed of the surrounding truss and cable network system. The accuracy of surface and the fundamental frequency of antenna are the main performance indexes of antennas. On-orbit reliable deployment is the premise of on-orbit application, and reliable deployment is the most important part of antenna design. The influence of ring antenna system parameters on on-orbit performance is analyzed. Based on the analysis of the deployable power system and the transmission power system, the influence of system parameters of the ring antenna on the deployable reliability is expounded. The method of evaluating the on-orbit performance design by structural statics and the deployable reliability by dynamic means are proposed. The design flow of spaceborne large aperture perimeter truss antenna system is defined by strength verification and on-board lock-release design by structural dynamics method, and the optimization strategy of each design parameter is proposed. It provides a reference for technical research and engineering development of the larger aperture spaceborne deployable antenna in the future.

Key words: spaceborne perimeter truss antenna, on-orbit performance, deployable structure, system design, optimization strategy