通信卫星天线能力因数分析及应用  

Analysis and Application of Antenna Capability Factor for Communications Satellite

作　　者：吕韫哲 王煜菲 才艺 余志杰 朱兴鸿 LYU Yunzhe;WANG Yufei;CAI Yi;YU Zhijie;ZHU Xinghong(China Satellite Communications Co.,Ltd.,Beijing 100190,China)

机构地区：[1]中国卫通集团股份有限公司,北京100190

出　　处：《航天器工程》2024年第4期76-84,共9页Spacecraft Engineering

摘　　要：针对目前不同频段的大波束卫星与高通量卫星之间缺乏统一的性能评估技术框架,以及卫星初步设计阶段天线覆盖性能需要多次迭代设计的问题,提出一种综合卫星天线增益和波束覆盖面积的通信卫星天线能力因数,该参数具有与天线增益与波束覆盖面积无关的特点。应用此参数的卫星性能评估方法,能够使不同频段大波束卫星和高通量卫星的天线在统一技术框架下进行对比。此外,基于现有在轨不同技术体制通信卫星的天线能力因数统计均值,提出一种卫星天线波束快速设计方法,能够解决卫星初步设计阶段天线覆盖性能的快速迭代问题。将该因数应用于卫星天线波束的工程设计中,结果表明:卫星天线波束设计方案具有较高准确性,能够有效提高卫星设计过程效率,具有应用推广价值。In response to the current lack of a unified technical framework for satellite performance assessment between regular beam satellite and high-throughput satellite in different frequency bands,as well as the need for iterative design of antenna coverage performance in the initial design stage of satellites,a communications satellite antenna capability factor that combines the gain and the beam coverage area of the satellite antenna is proposed.This parameter is independent of the gain and beam coverage area of antenna.The satellite performance evaluation method using this parameter can compare the antennas of regular beam satellite and high-throughput satellite in different frequency bands under a unified technical framework.In addition,based on the statistical mean of the antenna capability factors of communications satellites with different on-orbit technology system,a fast design method for satellite antenna beams is proposed,which can solve the fast iterative problem of antenna coverage performance in the initial design stage of satellite.The application of this factor to the engineering design of satellite antenna beam shows that the design scheme of satellite antenna beam has high accuracy,the efficiency of satellite design process can be effectively improved,and the factor has application and promotion value.

关 键 词：通信卫星 天线能力因数 卫星性能评估 波束设计 

分 类 号：TN927[电子电信—通信与信息系统]