Title :
Study and design of a 170GHz coaxial gyrotron cavity
Author :
Qin Mimi ; Luo Yong ; Zhou Xianhua
Author_Institution :
Sch. of Phys. Electron., Univ. of Electron. Sci. & Technol. of China, Chengdu, China
Abstract :
Based on mode coupling theory and numerical simulation, a comprehensive systematical study of high-frequency characteristics in a 170GHz smooth walled coaxial gyrotron cavity operating with mode is presented. In particular, the change of eigenvalues of operating mode, the coupling coefficients between different modes, the influence of mode coupling on diffraction quality factor and resonant frequency, the influence of single-mode and multi-mode coupling on high frequency field distribution as well as the phase of operating mode are investigated. The results show that the influence of the TM-type parasitic modes is extremely small, and can be ignored, but TE-type parasitic modes have some influences on diffraction quality factor of operating mode, that on resonant frequency of operating mode can be neglected.
Keywords :
Q-factor; eigenvalues and eigenfunctions; gyrotrons; numerical analysis; smoothing circuits; TE-type parasitic modes; TM-type parasitic modes; coupling coefficients; diffraction quality factor; eigenvalues; frequency 170 GHz; frequency field distribution; mode coupling theory; multimode coupling; numerical simulation; resonant frequency; single-mode coupling; smooth walled coaxial gyrotron cavity; Cavity resonators; Couplings; Equations; Gyrotrons; Manganese; Q-factor; Resonant frequency; Mode coupling; coaxial gyrotrons; coupling coefficients; parasitic modes; quality factor;
Conference_Titel :
Microwave and Millimeter Wave Circuits and System Technology (MMWCST), 2013 International Workshop on
Conference_Location :
Chengdu
DOI :
10.1109/MMWCST.2013.6814631
