Design and tests of a W-band gyro-TWA and its components

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Abstract

A W-band gyrotron traveling wave amplifier (gyro-TWA) with helically corrugated waveguide and cusp electron gun is presented. The beam-wave interaction, based on the cyclotron resonance maser instability, is driven by a 40 keV, 1.5 A axis-encircling electron beam generated by the cusp electron gun. Numerical simulations predict a maximum output of 5-10 kW with a 3 dB frequency bandwidth of 90-100 GHz and a saturated gain of 40 dB. Linear analysis and numerical simulation of the performance characteristics of the amplifier and its millimetre wave components will be presented as well as the latest experimental measurements.

Original languageEnglish
Title of host publication2nd IET Annual Active and Passive RF Devices Seminar
PublisherInstitution of Engineering and Technology
Pages7-9
Number of pages2
ISBN (Print)9781849199728
DOIs
Publication statusPublished - 2014
Event2nd IET Annual Active and Passive RF Devices Seminar - Birmingham, United Kingdom
Duration: 29 Oct 2014 → …

Conference

Conference2nd IET Annual Active and Passive RF Devices Seminar
CountryUnited Kingdom
CityBirmingham
Period29/10/14 → …

Keywords

  • amplifiers
  • electron guns
  • gyroscopes
  • gyrotrons
  • microwave oscillators
  • numerical models
  • axis-encircling electron beam
  • beam-wave interactions
  • cusp electron gun
  • cyclotron resonance maser
  • design and tests
  • frequency band with
  • helically corrugated waveguides
  • performance characteristics

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  • Cite this

    Zhang, L., He, W., Donaldson, C. R., McElhinney, P., Ronald, K., Phelps, A. D. R., & Cross, A. W. (2014). Design and tests of a W-band gyro-TWA and its components. In 2nd IET Annual Active and Passive RF Devices Seminar (pp. 7-9). Institution of Engineering and Technology. https://doi.org/10.1049/ic.2014.0186