摘要
为满足无线传能系统对高效率大功率毫米波功率源的迫切需求,开展大功率连续波速调管高效率技术研究,采用降压收集极技术实现速调管在效率上的有效提升。主要介绍了某Ka波段大功率连续波分布作用速调管(EIK)降压收集极的设计方案,包括注-波互作用后废电子能量分布及行为特性的研究,收集极初始条件、结构及电极电压的设计,给出了单级降压收集极和两级降压收集极的设计和计算结果。三维粒子模拟(PIC)计算结果表明,该Ka波段连续波EIK采用单级降压收集极时回收效率为41.0%,采用两级降压收集极时回收效率为68.8%,EIK总管效率相比于未采用降压收集极技术时的27.5%上升至54.8%,表明通过降压收集极技术可有效提升毫米波大功率速调管工作效率。
To meet the needs of the wireless transfer system for the high-efficiency high-power millimeter wave power source, the high-efficiency technology research of high-power continuous wave klystron was carried out, and the efficiency of the klystron was effectively improved by using the depressed-collector technology. This paper mainly introduces the design scheme of the depressed collector of a Ka-band high-power CW extended interaction klystron(EIK), including the investigation of electron energy distribution and behavior characteristics, the setting of the initial condition, the structure and the setting of the electrode voltage of the collector, and the design and calculation results of a single-stage depressed collector and a two-stage depressed collector for this high-power EIK. The results of PIC show that the recovery efficiency of the EIK with single-stage and two-stage depressed collector are 41% and 68.8%respectively, the net power conversion efficiency of this EIK is raised from a base value of 27.5% to 54.8% by using a two-stage depressed collector, which shows that it is feasible to improve the efficiency of high-power klystron by adopting the depressed collector technology.
作者
王柳亚
丁海兵
Wang Liuya;Ding Haibing(Aerospace Information Research Institute,Chinese Academy of Sciences,Beijing 100190,China;University of Chinese Academy of Sciences,Beijing 100190,China)
出处
《强激光与粒子束》
EI
CAS
CSCD
北大核心
2020年第8期37-45,共9页
High Power Laser and Particle Beams
关键词
分布作用速调管
降压收集极
KA波段
效率
三维仿真
extended interaction klystron
depressed collector
Ka-band
efficiency
3D simulation
