Title :
W-band gyro-TWA using a cusp electron gun and a helically corrugated interaction region
Author :
He, Wei ; Donaldson, C.R. ; Zhang, Leiqi ; McElhinney, P. ; Ronald, Kevin ; Cross, Adrian W.
Author_Institution :
Dept. of Phys., Univ. of Strathclyde, Glasgow, UK
Abstract :
Theoretical calculation, numerical simulation and experimental development of a W-band gyro-TWA with a helically corrugated waveguide and a cusp electron gun are presented. The cusp gun generated a 40 keV, 1.5 A axis-encircling electron beam. The maximum output of the gyro-TWA was predicted to be 5 kW with a 3 dB frequency bandwidth of 90-100 GHz and a saturated gain of 37 dB. The latest experimental results will be presented.
Keywords :
electron beams; electron guns; gyrotrons; helical waveguides; millimetre wave amplifiers; numerical analysis; travelling wave amplifiers; W-band gyroTWA; axis-encircling electron beam; bandwidth 90 GHz to 100 GHz; current 1.5 A; cusp electron gun; electron volt energy 40 keV; gain 3 dB; gain 37 dB; helically corrugated interaction region; helically corrugated waveguide; numerical simulation; power 5 kW; Couplers; Dispersion; Electron beams; Gyrotrons; Harmonic analysis; Microwave amplifiers; Microwave oscillators; W-band gyro-devices; cusp electron gun; gyro-TWA; gyrotron; helically corrugated waveguide;
Conference_Titel :
Vacuum Electronics Conference (IVEC), 2013 IEEE 14th International
Conference_Location :
Paris
Print_ISBN :
978-1-4673-5976-4
DOI :
10.1109/IVEC.2013.6570917
