A W-band gyrotron traveling wave amplifier based on a cusp electron gun

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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 (CW) 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 will be presented as well as the latest experiment measurements.
Original languageEnglish
Title of host publication2011 International Conference on Infrared, Millimeter, and Terahertz Waves
PublisherIEEE
Number of pages2
ISBN (Print)9781457705106
DOIs
Publication statusPublished - 15 Dec 2011
EventIRMMW-THz 2011 36th International Conference on Infrared, Millimeter, and Terahertz Waves - Hyatt Regency Downtown, Houston, TX, United States
Duration: 2 Oct 20117 Oct 2011
http://www.irmmw-thz.org/past_conf/index.html

Conference

ConferenceIRMMW-THz 2011 36th International Conference on Infrared, Millimeter, and Terahertz Waves
Abbreviated titleIRMMW-THz 2011
CountryUnited States
CityHouston, TX
Period2/10/117/10/11
Internet address

Keywords

  • helium
  • electron beams
  • magnetic fields
  • microwave amplifiers
  • couplers
  • gain
  • broadband amplifiers
  • cyclotron masers
  • electron guns
  • helical waveguides
  • numerical analysis

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