强激光与粒子束2012，Vol.24Issue(10)：2415-2419,5.DOI:10.3788/HPLPB20122410.2415
X波段高效双频同轴相对论返波管粒子模拟
Particle simulation of high-efficiency X-band dual-frequency coaxial relativistic backward-wave oscillator
摘要
Abstract
An X-band dual-frequency coaxial relativistic backward-wave oscillator with a resonant reflector is proposed in this paper. The 2. 5-D fully electromagnetic particle-in-cell code simulation results indicate that, with an electron beam of 520 kV and 8. 5 kA guided by an axial magnetic field of 2. 35 T, an average power of 1. 35 GW with power conversion efficiency of 30. 5% is obtained and the two dominant frequencies are 9. 41 GHz and 10. 29 GHz, respectively. Furthermore, the dual-frequency spectrum and the smaller dominant frequency demonstrate a periodic-like dependence on the drift waveguide, and a frequency agility bandwidth of about 400 MHz is acquired.关键词
同轴相对论返波管/谐振反射器/双频/高效率/粒子模拟/频率捷变Key words
coaxial relativistic backward-wave oscillator/ resonant reflector/ dual-frequency/ high efficiency/ particle simulation/ frequency agility分类
信息技术与安全科学引用本文复制引用
唐永福,蒙林,李海龙,王彬,殷勇,张斐娜..X波段高效双频同轴相对论返波管粒子模拟[J].强激光与粒子束,2012,24(10):2415-2419,5.基金项目
国家自然科学基金项目(60971034,41104097) （60971034,41104097）
中央高校基本科研业务费专项资金项目(ZYGX2011J045) （ZYGX2011J045）
