真空电子技术Issue(2)：21-24,4.
折叠波导行波管注波互作用过程分析新方法
A New Analysis Method for Beam-Wave Interaction in Folded Waveguide TWTs
刘世硕 1蔡军 1邬显平 1冯进军1
作者信息
- 1. 微波电真空器件国家级重点实验室北京真空电子技术研究所,北京100015
- 折叠
摘要
Abstract
A new method is presented to analyze beam-wave interaction in folded waveguide TWT in this paper.The definition of amplitude of power flow density in gap,the power flow parameter produced in gap,the magnification of power flow in gap and phase difference of beam and wave is introduced.A W-band folded waveguide TWT is taken to illustrate the physical process of beam-wave interaction based on numerical simulation using CST PIC Solver.The physical meaning of magnification of power flow in gap is discussed.The research indicates that the optimal starting point for velocity taper is located on the border of linear region Ⅱ and nonlinear region Ⅱ.The simulation results of different starting points for velocity taper validate the method faithful and practical.The new method will be adopted to study phase velocity resynchronization in depth so as to improve electron efficiency of folded waveguide TWTs in the future.关键词
折叠波导/间隙功率流密度幅值/间隙产生功率流参量/间隙放大率参量/注波相位差Key words
Folded waveguide/Amplitude of power flow density in gap/Power flow parameter produced in gap/Magnification of power flow in gap/Phase difference of beam and wave分类
信息技术与安全科学引用本文复制引用
刘世硕,蔡军,邬显平,冯进军..折叠波导行波管注波互作用过程分析新方法[J].真空电子技术,2017,(2):21-24,4.
