Design and Simulation of W-Band Gyro-BWO based on a Helically Corrugated Waveguide

Author

Donaldson, C.R. ; He, W. ; Phelps, A.D.R. ; Cross, A.W. ; Ronald, K.

Author_Institution

Strathclyde Univ., Glasgow

fYear

2007

Firstpage

812

Lastpage

812

Abstract

The gyrotron-backward wave oscillator (Gyro-BWO) is an efficient source of coherent, high-power microwaves over the centimeter to millimeter wavelength range. At the University of Strathclyde a project has been undertaken to create a Gyro-BWO in the W-band frequency band (75 -110GHz) outputting in continuous wave (CW) operation. The dispersion for the waveguide was found numerically, analytically and experimentally. Dispersion results from the constructed waveguide agreed with theory to a high degree. A novel Cusp electron beam source has been designed to drive the beam wave interaction. Simulations have been carried out using the 3D particle in cell code MAGIC and a 2A, 40kV electron beam has been created.

Keywords

backward wave oscillators; gyrotrons; millimetre wave oscillators; millimetre wave tubes; waveguide components; 3D particle in cell code MAGIC; Cusp electron beam source; University of Strathclyde; W-band gyro-BWO; continuous wave operation; current 2 A; frequency 75 GHz to 110 GHz; gyrotron-backward wave oscillator; helically corrugated waveguide; high-power microwaves; voltage 40 kV; waveguide dispersion; Bandwidth; Boring; Corrugated surfaces; Electron beams; Frequency; Helium; High power microwave generation; Microwave oscillators; Surface waves; Tuning;

fLanguage

English

Publisher

ieee

Conference_Titel

Plasma Science, 2007. ICOPS 2007. IEEE 34th International Conference on

Conference_Location

Albuquerque, NM

ISSN

0730-9244

Print_ISBN

978-1-4244-0915-0

Type

conf

DOI

10.1109/PPPS.2007.4346118

Filename

4346118