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Design and simulation of a W-band gyrotron traveling wave amplifier

Author

Listed:
  • Shou-Xi Xu
  • Zhi-Hui Geng
  • Wei Gu
  • Jie Yang
  • Jian Zhang
  • Rui Zhang

Abstract

The design of a W-band gyrotron traveling wave tube amplifier is presented. The device with a lossy ceramic interaction circuit operates in the fundamental harmonic TE01 circular electric mode. The 70-kV, 6-A electron beam is produced by a double anode magnetron injection gun with an average perpendicular-to-parallel velocity ratio of 1.2 and a parallel velocity spread of less than 3%. The beam-wave interaction is investigated by using a particle-in-cell code. The simulations predict that the amplifier can produce an output peak power of over 100 kW, 28% efficiency, 42 dB gain, and a 3 GHz bandwidth, respectively under the assumption of beam velocity spread 3%.

Suggested Citation

  • Shou-Xi Xu & Zhi-Hui Geng & Wei Gu & Jie Yang & Jian Zhang & Rui Zhang, 2021. "Design and simulation of a W-band gyrotron traveling wave amplifier," Journal of Electromagnetic Waves and Applications, Taylor & Francis Journals, vol. 35(17), pages 2384-2395, November.
    • Handle: RePEc:taf:tewaxx:v:35:y:2021:i:17:p:2384-2395
    DOI: 10.1080/09205071.2021.1950577
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