The design and simulation of a W-band Gyro-BWO

Wenlong He, Alan Phelps, Craig Donaldson, Adrian Cross, Kevin Ronald

Research output: Chapter in Book/Report/Conference proceedingConference contribution book

4 Citations (Scopus)


This paper presents the design and simulation of a W-band gyrotron backward wave oscillator (Gyro-BWO) with a helically corrugated waveguide as the beam-wave interaction region and a cusp gun as the electron beam source. The electron beam system and the beam-wave interaction were optimized through numerical simulations for optimized output power and frequency bandwidth. A 3d8 bandwidth of similar to 84-104 GHz and output power similar to 10 kW were achieved using a 40 kV, 1.5 A, pitch alpha 1.6 axis-encircling electron beam from the cusp gun. Furthermore, the W-band helically corrugated interaction region was manufactured with dispersion from 76GHz to 110GHz measured in good agreement with simulations and theory.
Original languageEnglish
Title of host publicationEighth IEEE international vacuum electronics conference
Place of PublicationNew York
ISBN (Print)9781424406333
Publication statusPublished - 2007
Event8th IEEE International Vacuum Electronics Conference - Kitakyushu, Japan
Duration: 15 May 200717 May 2007

Publication series

NameIEEE International Vacuum Electronics Conference IVEC


Conference8th IEEE International Vacuum Electronics Conference


  • gyro-BWO
  • gyro-device
  • helically corrugated waveguide
  • gyrotron
  • gyro-TWA
  • high power microwave


Dive into the research topics of 'The design and simulation of a W-band Gyro-BWO'. Together they form a unique fingerprint.

Cite this