Design and analysis of a coaxial coupler for a 35-GHz gyroklystron amplifier

被引:25
作者
McCurdy, AH [1 ]
Choi, JJ
机构
[1] Univ So Calif, Dept Elect Engn & Electrophys, Los Angeles, CA 90089 USA
[2] Kwangwoon Univ, Dept Radio Engn, Seoul, South Korea
关键词
D O I
10.1109/22.744291
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
A single rectangular TE10 feed four-slot coaxial coupler is designed and built for excitation of a TE011 cylindrical cavity mode for use in high-power millimeter-wavelength gyroklystron amplifiers. A high degree of mode purity is obtained and matching of the cavity to the input line is studied. A model based on the mode-matching technique and dipole radiators has been formulated to predict operation of this coupler. The resulting numerical code is capable of finding resonant frequency and cavity bandwidth in a small fraction of the time taken by more general finite-difference/finite-element design tools, The model can be extended to self-consistently include an electron beam, and the model is compared to a coupler design based on Hewlett-Packard's High-Frequency Structure Simulator code. The coupler has been successfully used in a high-power gyroklystron-amplifier experiment.
引用
收藏
页码:164 / 175
页数:12
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