径向耦合多腔输出系统数值模拟分析
The numerical simulation of the radial coupling multi-cavity resonators
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摘要: 宽带速调管放大器是雷达、通讯系统核心部件,速调管输出系统的宽带特性对速调管带宽有至关重要的作用,该文论述了借助于三维电磁场计算程序《ISFEL 3D》对径向耦合多腔谐振输出系统的一对谐振腔(主腔和副腔)做了数值模拟分析,得到了不同于普遍使用的轴向耦合双间隙腔系统的场结构、模式类别和调谐带宽特性。据此结果设计了冷测实验模型,达到了离散(频率)工作点带宽7％的要求。
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关键词:
- 速调管; 谐振腔; 数值模拟
Abstract: Broadband klystron is one of key devices in radar and communication system. The broadband performances of microwave output circuit play an important role for extending klystrons bandwidth. This paper describes the numerical results of a broadband output circuit-radial coupling multicavity circuit by using 3D electromagnetic field computation program, IS-FEL 3D, which includes the resonance performance, field distribution, mode construction and difference of radial with axial coupling multicavity circuit. The radial coupling multicavity circuit has been designed and manufactured, and the cold measurement shows that 7% bandwidth has been obtained. -
C.A. Silaev, ISFEL 3D, Electrical Engineering University, St. Petersburg, Russia, 1997.[2]E. Lien, D. Robinson, Study and investigation leading to the design of broadband high-power klystron amplifiers AD813227, 1981. -
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