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

fYear

2008

fDate

22-24 April 2008

Firstpage

95

Lastpage

96

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Vacuum Electronics Conference, 2008. IVEC 2008. IEEE International

Conference_Location

Monterey, CA

Print_ISBN

978-1-4244-1715-5

Type

conf

DOI

10.1109/IVELEC.2008.4556433

Filename

4556433