A W-band multi-layer microwave window for pulsed operation of gyro-devices

C.R. Donaldson, Wenlong He, Liang Zhang, A.W. Cross

Research output: Contribution to journalLetterpeer-review

64 Citations (Scopus)


A broadband multi-layer microwave window operating in the W-band frequency range was numerically simulated, constructed and its microwave properties measured. The window acts to separate vacuum and atmosphere. It had to meet strict requirements for application in gyro-amplifiers of broadband, low reflection and high mechanical strength. The window was manufactured showing a -20 dB reflection over 90 - 100 GHz (except in two small regions), which is in good agreement with the numerical simulation presented in this letter.
Original languageEnglish
Pages (from-to)237-239
Number of pages3
JournalIEEE Microwave and Wireless Components Letters
Issue number5
Publication statusPublished - 6 May 2013


  • broadband window
  • output window
  • electromagnetic wave reflection
  • gyrotrons
  • microwave amplifiers
  • broadband multilayer microwave window


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