Title :
Dispersion analysis of a helical waveguide for W-band gyro-TWTs and gyro-BWOs
Author :
Yanjun Wang ; Li Wang ; Guo Liu ; Yong Luo
Author_Institution :
Sch. of Phys. Electron., Univ. of Electron. Sci. & Technol. of China, Chengdu, China
Abstract :
The helical waveguide resonantly couples the TE21 and TE11 modes and results in a `TE21-like´ eigenmode, so its dispersion characteristic needs to be researched. The dispersion equation of the traveling wave mode and backward wave mode is derived for engineering applications. The model is built and the helical waveguide is simulated by using three-dimension electromagnetic emulation software HFSS.
Keywords :
backward wave oscillators; electromagnetic wave scattering; gyrotrons; travelling wave tubes; BWO; HFSS 3D electromagnetic emulation; W-band TWT; W-band gyrotron; backward wave mode; backward wave oscillator; dispersion analysis; dispersion equation; helical waveguide; traveling wave mode; traveling wave tube; Couplings; Dispersion; Harmonic analysis; Mathematical model; Microwave amplifiers; Waveguide theory; backward wave; dispersion characteristic; eigenwave; three-fold helical waveguide; traveling wave;
Conference_Titel :
Vacuum Electronics Conference (IVEC), 2015 IEEE International
Conference_Location :
Beijing
Print_ISBN :
978-1-4799-7109-1
DOI :
10.1109/IVEC.2015.7223871
