导航用L波段行波管放大器在轨可靠性分析  

On-Orbit Reliability Analysis of L-Band Navigation TWTAs

作　　者：冯西贤[1] 王勇[1] 范培云[1] FENG Xi-xian;WANG Yong;FAN Pei-yun(China Academy of Space Technology(Xi'an),Xi'an 710100,China)

机构地区：[1]中国空间技术研究院西安分院,陕西西安710100

出　　处：《真空电子技术》2020年第6期8-11,共4页Vacuum Electronics

摘　　要：北斗全球卫星导航系统于2020年8月宣布完全建立。在北斗全球卫星系统中共有20颗卫星由CAST Xi’an负责建造有效载荷,导航系统方案选用了L波段行波管放大器作为下行导航信号功率放大器。大规模的国产化行波管放大器在轨应用在我国航天器中尚属首次,是对国产化行波管放大器的工程检验。对批量在轨应用的L波段行波管放大器进行可靠性分析,一方面可以为北斗全球组网卫星在轨稳定运行提供支持,另一方面也可以对国产化行波管放大器的发展提供参考。The Beidou global satellite navigation system was established in August 2020.The payload of 20 satellites was constructed by CAST Xi an,and the L-band traveling wave tube amplifier(TWTA)was selected as the power amplifier of downlink of the navigation subsystem.It is the first time that a large-scale domestic TWTAs are used in China s spacecraft,which is an engineering test of them.The on-orbit reliability analysis of large-number L-band TWTAs,on one hand provides support for the stable operation of the Beidou global satellites,and on the other hand provides reference for the development of domestic TWTAs.

关 键 词：北斗全球卫星导航系统 L波段 行波管放大器 在轨 可靠性 

分 类 号：TN124[电子电信—物理电子学]