S频段星载相控阵双波束发射链路载荷设计与实现  

Design and Realization of Dual-beam Transmission Link for An S-band Spaceborne Phased Array

作　　者：余鹏程[1] 葛枫 吴瑞荣[1] 陈小群[2] YU Pengcheng;GE Feng;WU Ruirong;CHEN Xiaoqun(The Thirty-eighth Research Institute of CETC,Hefei 230088,China;Institute of Telecommunication and Navigation Satellites,China Academy of Space Technology,Beijing 100094,China)

机构地区：[1]中国电子科技集团公司第三十八研究所,合肥230088 [2]中国空间技术研究院通信与导航卫星总体部,北京100094

出　　处：《航天器工程》2022年第2期71-77,共7页Spacecraft Engineering

摘　　要：基于二代中继卫星S频段多址相控阵系统对前向多波束服务能力的需求,设计了一种用于星上射频波束形成的S频段双波束16通道发射链路,其产生的波束具有高EIRP、高实时响应的特点,具备波束指向计算、通道移相、功率放大与控制等功能。针对发射链路搭建了测试系统,对通道的性能指标进行了有线测试,证明该发射链路具有良好的幅相一致性及优异的波束切换性能,并在与相控阵天线集成后的无线测试中,对系统的EIRP、波束扫描和跟踪能力、数传性能进行了验证。Based on the requirement of the second generation relay satellite multi-access phased array antenna system for forward multi-beam service capability,an S-band dual-beam 16-channel transmission link for on-satellite beam-forming is designed.The resulting beam has the characteristics of high EIRP(equivalent isotropic radiated power),high real-time response,beam pointing calculation,channel phase shift,power amplification and control,etc.A test system is set up for the transmission link,and the channel performance indicators are tested in detail,which prove that the transmission link has good amplitude consistence and excellent beam switching performance.In the wireless test integrated with the phased array antenna,the EIRP,beam scanning and tracking capabilities,and data transmission performance of the system are verified.

关 键 词：相控阵 双波束 波束形成 发射链路 波束扫描 

分 类 号：V423.45[航空宇航科学与技术—飞行器设计]