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内开槽矩形波导栅慢波电路高频特性的数值分析
引用本文:路志刚,宫玉彬,魏彦玉,殷海荣,王文祥.内开槽矩形波导栅慢波电路高频特性的数值分析[J].强激光与粒子束,2006,18(7):1154-1158.
作者姓名:路志刚  宫玉彬  魏彦玉  殷海荣  王文祥
作者单位:电子科技大学 物理电子学院, 成都 610054
基金项目:国家自然科学基金;霍英东教育基金;国家自然科学基金
摘    要: 介绍了用德国CST公司提供的MWS 4.2软件模拟计算色散特性和耦合阻抗的理论方法,对内开槽矩形波导栅结构的高频特性进行了数值模拟。结果表明:在传统矩形波导栅结构的基础上,开槽后的矩形波导栅结构比开槽前的相速更低,用作行波管的慢波结构时,可降低工作电压,工艺上容易实现,而且耦合阻抗均在45 W以上,满足毫米波行波管的要求;在内开槽宽度一定的前提下,槽深、栅间距和栅周期的增大对降低系统相速有利。

关 键 词:高功率微波  内开槽矩形波导栅  色散特性  耦合阻抗  计算机仿真
文章编号:1001-4322(2006)07-1154-05
收稿时间:2005-12-13
修稿时间:2006-04-29

Numerical analysis on high frequency characteristics of inner slotted rectangular waveguide grating slow-wave circuit
LU Zhi-gang,GONG Yu-bin,WEI Yan-yu,YIN Hai-rong,WANG Wen-xiang.Numerical analysis on high frequency characteristics of inner slotted rectangular waveguide grating slow-wave circuit[J].High Power Laser and Particle Beams,2006,18(7):1154-1158.
Authors:LU Zhi-gang  GONG Yu-bin  WEI Yan-yu  YIN Hai-rong  WANG Wen-xiang
Institution:School of Physical Electronics, University of Electronic Science and Technology of China, Chengdu 610054, China
Abstract:The software MWS (microwave studio) which is provided by the CST company in German was introduced to simulate and calculate dispersion relation and coupling impedance. The high frequency characteristics of the inner slotted rectangular waveguide grating was simulated. The results indicate that the slotted rectangular waveguide grating has lower phase-velocity than the un-slotted one. When it is used as the slow-wave structure of the traveling wave tube, the operating voltage decreases, and the coupling impedance also decreases but it lies above 45 Ω, which satisfies the need of millimeter wave traveling wave tube (TWT). Meanwhile, keeping the inner slotted width constant, it is very useful to increase the groove-depth, grating-spacmg and grating-period for improving the phase velocity of
Keywords:High power microwave  Inner slotted rectangular waveguide grating  Dispersion characteristics  Coupling impedance  Computer emulation
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