W波段带状注速调管多间隙腔高频结构及其特性  

RF structure and the cavity characteristics of W-band sheet beam klystron

作　　者：陈姝媛[1,2] 阮存军[1] 阮望[1] 王勇[1] 张小峰[1,2] 

机构地区：[1]中国科学院电子学研究所中国科学院高功率微波源与技术重点实验室,北京100190 [2]中国科学院研究生院,北京100039

出　　处：《红外与毫米波学报》2012年第4期360-366,共7页Journal of Infrared and Millimeter Waves

基　　金：国家自然科学基金(60501019;10775139;60971073)~~

摘　　要：通过对W波段带状注速调管的哑铃型谐振腔特性进行分析,利用三维高频仿真设计软件CST-MSW建立了单间隙、三间隙、五间隙腔的物理模型,详细分析了不同结构尺寸对于高频系统相关冷参数的影响,优化得到了相应的高频结构及其特性参数,以此作为开发的二维注波互作用程序SBK2D快速计算的高频输入参数.同时,为了结合注波互作用系统的热参数三维仿真设计,采用MAGIC-3D对多间隙腔的高频特性及参数进行了仿真计算,得到的结果与CST冷参数设计基本一致,为W波段带状注速调管注波互作用系统的设计提供了重要参数和依据.The dumb bell resonani cavity characteristics for W-band sheet beam klystron （SBK） are analyzed with one-, three-, and five-gap coupled cavity models by three dimensional high frequency simulation software （CST-MSW）. The dependence of the cold parameters on the configurations of the cavity was analyzed. For the particle in cell （PIC） simu- lation analysis, the optimized cavity frequency combination of eight-cavity WSBK circuit was obtained using 2-D soft- ware SBK2D, which runs with high speed, thereby allowing an efficient investigation of input parameters. To unify the electronic-beam wave interaction system＇s hot parameter design, the calculated results are examined by PIC simulation （MAGIC-3D）, and show good agreement with CST, thereby confirming the design method mentioned above. These re- sults provide key parameters and a good foundation for developing higher performance on RF structure of sheet beam klystron in the future.

关 键 词：W波段 带状注速调管 多间隙谐振腔 哑铃型 高频参数 

分 类 号：TN249[电子电信—物理电子学]