Linear theory of beam–wave interaction in double-slot coupled cavity travelling wave tube  

作　　者：何昉明 谢文球 罗积润 朱敏 郭炜 

机构地区：[1]Radar Research (Beijing), Leihua Electronic Technology Institute, AVIC, Beijing 100017, China [2]Aviation Key Laboratory of Science and Technology on AISSS, Wuxi 214063, China [3]Institute of Electronics, Chinese Academy of Sciences, Beijing 100190, China [4]University of Chinese Academy of Sciences, Beijing 100039, China

出　　处：《Chinese Physics B》2016年第3期424-427,共4页中国物理B（英文版）

基　　金：Project supported by the National Natural Science Foundation of China(Grant No.11205162)

摘　　要：A three-dimensional model of the double-slot coupled cavity slow-wave structure （CCSWS） with a solid round elec- tron beam for the beam-wave interaction is presented. Based on the ＂cold＂ dispersion, the ＂hot＂ dispersion equation is derived with the Maxwell equations by using the variable separation method and the field-matching method. Through numerical calculations, the effects of the electron beam parameters and the staggered angle between adjacent walls on the linear gain are analyzed.A three-dimensional model of the double-slot coupled cavity slow-wave structure （CCSWS） with a solid round elec- tron beam for the beam-wave interaction is presented. Based on the ＂cold＂ dispersion, the ＂hot＂ dispersion equation is derived with the Maxwell equations by using the variable separation method and the field-matching method. Through numerical calculations, the effects of the electron beam parameters and the staggered angle between adjacent walls on the linear gain are analyzed.

关 键 词：double-slot coupled cavity slow-wave structure beam-wave interaction field matching method small signal gain 

分 类 号：TN124[电子电信—物理电子学]