Ka波段TE_(02)模回旋速调管带正弦渐变段输出腔研究  

Output Cavity with Sinusoidal Tapered Section of Ka-Band TE_(02) Mode Gyroklystron

作　　者：陈宪龙[1] 罗勇[1] 徐勇[1] 王建勋[1] 

机构地区：[1]电子科技大学物理电子学院,成都610054

出　　处：《微波学报》2012年第6期66-71,共6页Journal of Microwaves

基　　金：国家高技术研究发展计划("863"计划)(2011AA8034035)

摘　　要：利用模式展开与场匹配理论,建立了具有突变结构的开放式波导谐振腔的级联散射矩阵,在此基础上编写Matlab计算程序,通过数值计算,分析了回旋速调管输出腔的腔体长度和半径变化、输出耦合孔的半径和厚度变化、正弦渐变段的长度和起始半径的变化等对输出腔的品质因数和频率的影响,并分析了正弦渐变段的长度和起始半径的变化对反射参数和对杂模的影响。给出了中心频率35.02GHz、Q值为110.1、TE02模带正弦渐变段输出腔的设计参数。同时,在三维高频分析软件HFSS中建立三维模型,进行仿真对比,结果表明:数值计算与三维高频软件仿真结果基本吻合。The open resonator with sinusoidal tapered section and abrupt changes in radius for gyroklystron is studied using the mode-matching technique with the scattering matrix. A Matlab code is developed to calculate the scattering matrix. The effects of the cavity＇ s length and radius, the coupling aperture＇ s radius and thickness on the resonance characteristics of output cavity for Ka-band TE02 gyroklystron are analyzed. And the effects of the starting radius and length of sinusoidal tapered section on the S11 and S21 of TE02 mode and restraining parasitic mode are construed. The designed parameters of the output cavity with sinusoidal tapered section are obtained. Then simulation with HFSS is carried out and results show that the center frequency is 35.02GHz and the quality factor is 110.1. At the same time, the simulation results of output cavity obtained by the code show well agreement with HFSS code simulation.

关 键 词：回旋管 开放式谐振腔 突变结构 谐振频率 散射矩阵 

分 类 号：TN122[电子电信—物理电子学]