Progress on a 71-76 GHz TWT

Craig W. Robertson, Adrian W. Cross, Christopher Gilmour, David Dyson, Peter G. Huggard, Fiachra Cahill, Mat Beardsley, Michael Harris, Roberto Dionisio, Kevin Ronald

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


To address application requirements in satellite communications, a 71–76 GHz TWT has been designed based on a folded waveguide. Numerical simulations have predicted output power of up to 100 W with gain of 40 dB. An experiment is being prepared to test these predictions. The folded waveguide is micromachined in the copper alumium oxide composite material GLIDCOP and will be diffusion bonded and integrated with the electron gun, PPM focusing system, I/O windows and collector systems. The amplifier will operate with a single stage depressed collector to provide benchmarking of the simulations.
Original languageEnglish
Title of host publication2021 22nd International Vacuum Electronics Conference, IVEC 2021
Place of PublicationPiscataway, N.J.
ISBN (Electronic)9781665441056
Publication statusPublished - 4 Mar 2022


  • folded waveguide TWT
  • W-band
  • collector
  • satellite communications
  • slow-wave structure
  • window


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