Title :
A W-Band Gyro-BWO using a helically corrugated waveguide
Author :
Donaldson, Craig Ross ; He, Wenlong ; Phelps, Alan D R ; Cross, Adrian W. ; Ronald, Kevin ; Young, Alan R. ; Whyte, Colin G. ; Li, Fengping
Author_Institution :
Dept. of Phys., Univ. of Strathclyde, Glasgow
Abstract :
This paper presents the design of a W-band gyro-BWO with a helically corrugated waveguide and a cusp electron gun. Results are presented of simulations of the cusp gun and microwave measurements of the interaction region using a vector network analyser. Over the frequency range 85-105 GHz the helically corrugated waveguide was found to have an average loss of just under 1 dB. Also, the waveguide dispersion showed an excellent agreement between the analytical and numerically calculated dispersion.
Keywords :
backward wave oscillators; electron guns; gyrotrons; millimetre wave generation; waveguides; W-band gyro-BWO; cusp electron gun; frequency 85 GHz to 105 GHz; helically corrugated waveguide; microwave measurements; millimeter wave generation; vector network analyser; waveguide dispersion; Cathodes; Coils; Corrugated surfaces; Electron beams; Frequency; Microwave oscillators; Optical coupling; Physics; Resonance; Tuning; Cusp Electron Gun; Gyro-BWO; Gyrotron-Backward Wave; Helically Corrugated Waveguide; Oscillator; W-Band;
Conference_Titel :
Vacuum Electronics Conference, 2008. IVEC 2008. IEEE International
Conference_Location :
Monterey, CA
Print_ISBN :
978-1-4244-1715-5
DOI :
10.1109/IVELEC.2008.4556433
