摘要
针对50 GHz通信行波管高通量卫星上行链路的应用背景,通过仿真计算和样管试制对Q/V波段螺旋线行波管总效率和线性工作效率的提升开展技术研究。在确定行波管电参尺寸、电子注互作用后,采用三级降压收集极,在收集极电子入口处设计“偏心”带“挡板”结构,实现电子注能量回收并抑制返流,研制出总效率优于40%、饱和输出回退6 dB效率优于20%的50 GHz螺旋线行波管。
In view of the application background of 50 GHz communication traveling wave tubes(TWTs)for uplink of high throughput satellites,technical research is carried out to improve the overall efficiency and linear working efficiency of a Q/V-band helix TWT through simulation and trial-manufacture.The beam-wave interaction is studied and related electrical parameters are determined.In order to recycle the electron energy and prevent the backflow,a three-stage depressed collector with eccentric structure and baffles at electron inlet is adopted.The overall efficiency of the developed 50 GHz helix TWT is more than 40%,and the efficiency with 6 dB output back-off is more than 20%.
作者
苏小刚
李紫琳
郝保良
郑玲丽
王娟
孟晓君
SU Xiao-gang;LI Zi-lin;HAO Bao-liang;ZHENG Ling-li;WANG Juan;MENG Xiao-jun(Beijing Vacuum Electronics Research Institute,Beijing 100015,China)
出处
《真空电子技术》
2022年第6期94-98,103,共6页
Vacuum Electronics
关键词
Q/V波段
螺旋线行波管
效率
三级降压收集极
Q/V-band
Helix traveling wave tube
Efficiency
Three-stage depressed collector
