强激光与粒子束2011，Vol.23Issue(5)：1315-1318,4.DOI:10.3788/HPLPB20112305.1315
回旋管同轴谐振腔模式的选择
Mode selective properties of gyrotron coaxial cavities
摘要
Abstract
In order to study the working mode selection mechanism of gyrotrons, this paper investigates mode selective properties of three kinds of gyrotron cavities, i.e. cylindrical open cavity, coaxial cavity with smooth insert and coaxial cavity with corrugated insert, and further discusses the mode competition phenomenon in these cavities. Through the calculation of dispersive curves of coaxial waveguide, it is determined that coaxial cavities can rarefy the mode spectrum and reduce the competing action of some high-order modes, compared with the cylindrical open cavity, enabling stable single mode operation of gyrotron. Finally, the numerical calculation of dispersion characteristics of a coaxial gyrotron in the KIT(Karlsruhe Institute of Technology) is presented, and the results indicate that the coaxial cavity with corrugated insert is more suitable for high-order working modes than the one with smooth insert.关键词
回旋管/色散特性/同轴谐振腔/表面阻抗法/模式竞争Key words
gyrotron/ dispersive property/ coaxial cavity/ surface impedance model/ mode competition分类
信息技术与安全科学引用本文复制引用
刘睿,李宏福..回旋管同轴谐振腔模式的选择[J].强激光与粒子束,2011,23(5):1315-1318,4.基金项目
国家高技术发展计划项目 （）
