摘要
利用模式展开和场匹配理论,建立了具有突变结构谐振腔的散射矩阵。在此基础上编制了FORTRAN计算程序,并对Ka波段TE01模回旋速调管的具有突变结构的开放式输出腔进行了数值计算。分析了回旋速调管输出腔的腔体长度和半径变化,以及输出耦合孔的半径和厚度变化对输出腔的品质因数和频率的影响。结果表明:由程序模拟输出腔所得到的计算结果与HFSS软件的结果一致;与冷测实验结果相比,品质因数的相对偏差为1.65%,谐振频率的偏差为10 MHz。
The output cavity with abrupt changes in radius for gyroklystron is studied using the mode-matching technique to build scattering matrix. A FORTRAN 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 TE01 gyroklystron are analyzed. At the same time, the high frequency field distribution in the cavity is presented. The simulation result of output cavity obtained by the code shows good agreement with HFSS code simulation. Comparing the simulation result with the cold-test experimental result, the difference of quality factor is only 1.65% and the deviation of resonance frequency is 10 MHz.
出处
《强激光与粒子束》
EI
CAS
CSCD
北大核心
2008年第3期426-430,共5页
High Power Laser and Particle Beams
基金
国家高技术发展计划项目
关键词
回旋速调管
输出腔
品质因数
谐振频率
模式匹配
散射矩阵
Gyroklystron
Output cavity
Quality factor
Resonance frequency
Mode-matching
Scattering matrix
作者简介
徐勇（1977-），男，四川崇州人，博士研究生，讲师，主要从事高功率微波毫米波技术研究；xuzixiang2468@sina.com。
