速调管圆柱同轴谐振腔高阶TM_(310)模式输出回路  

Output Circuit of High Order TM_(310) Mode in Cylindrical Coaxial Resonant Cavity of Klystron

作　　者：董玉和[1] 刘永霞[2] 

机构地区：[1]内蒙古科技大学理学院,包头014000 [2]内蒙古科技大学信息学院,包头014000

出　　处：《真空科学与技术学报》2012年第12期1093-1097,共5页Chinese Journal of Vacuum Science and Technology

基　　金：国家自然科学基金项目(61062001);蒙古自然基金项目(2009MS0901)

摘　　要：设计了工作于高阶横磁TM310模式圆柱同轴谐振腔。模拟计算了六个漂移管间隙中心轴向谐振电场极大值位置处的特性阻抗。对于谐振腔加载空矩形波导和加载电感膜片滤波器矩形波导两种速调管输出回路,由微波电路理论和高频电磁场软件分别模拟计算了漂移管间隙中心的平均间隙阻抗和输出带宽。两种情形间隙阻抗的最大值分别为48.757 kΩ和14.328 kΩ;间隙阻抗的3 dB带宽分别约为1.1MHz和2.8MHz。研究表明,单间隙圆柱同轴输出腔高阶横磁TM310模式结构适用于高频、窄带和高功率多注速调管输出回路。The cylindrical coaxial resonant cavity of klystron, operating in the high order transverse magnetic TM310 mode, was designed. The characteristic impedances, at the six peak positions of the resonant electric field along the axis of the shift tubes, were calculated. For the two types of klystron output circuit of the cavity, one is loaded with the rectangular waveguide, and the other with the rectangular wavegnide, equipped with the inductive diaphragm filter, the average gap impedances and output bad-widths were modeled on the basis of microwave theory, and simulated with the software pack- age HF EM. The maximum gap impedances are 48.757 kΩ and 14.328 kΩ, respectively;and their 3 dB band-widths are 1.1 MHz and 2.8 MHz, respectively. We suggest that the single gap cylindrical coaxial cavity resonator, operating in high order transverse magnetic TM310 mode, may work well in the high frequency, narrow-band, and high power output circuit of the multiple-beam klystrons.

关 键 词：同轴谐振腔 高阶TM310模式 间隙阻抗 3 dB带宽 

分 类 号：TN122.5[电子电信—物理电子学]