Possibilities of frequency tuning in gyrotrons with azimuthally-asymmetric cavities

被引：0
|
作者：
Osharin, Ivan [1 ]
Savilov, Andrei [1 ]
Shchegolkov, Dmitriy [1 ]
机构：
[1] Russian Acad Sci, Inst Appl Phys, High Frequency Relativist Elect Dept, Nizhnii Novgorod, Russia
来源：
IVEC 2021: 2021 22ND INTERNATIONAL VACUUM ELECTRONICS CONFERENCE | 2021年
基金：
俄罗斯科学基金会;
关键词：
gyrotrons; frequency tuning; terahertz radiations; mode selection; OPERATION;
D O I：
10.1109/IVEC51707.2021.9722469
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：
An electrodynamic method based on azimuthally asymmetric cavities is proposed to provide a small frequency tuning in terahertz gyrotrons. The use of a cavity with a "close-to-circular" cross-section possessing small azimuthal inhomogeneities improves the selectivity of excitation of a high-cyclotron-harmonic wave. A small mechanical change of the transverse shape of this cavity changes the frequency of the operating wave with no affect on its transverse structure and rotation, and, therefore, on the electron-wave interaction.
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页数：2
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