An output coupler for a W-band high power wideband gyro-amplifier

McElhinney, Paul and Donaldson, Craig R. and McKay, Johannes E. and Zhang, Liang and Robertson, Duncan A. and Hunter, Robert I. and Smith, Graham M. and He, Wenlong and Cross, Adrian W. (2017) An output coupler for a W-band high power wideband gyro-amplifier. IEEE Transactions on Electron Devices. ISSN 0018-9383

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    Abstract

    An output coupler for a W-band high power wideband gyro-amplifier has been designed, manufactured and experimentally measured. It consists of a high performance sin2-parallel corrugated horn integrated with a broadband multi-layer window. The major design requirements are that the horn/window combination must have an input return loss lower than -30 dB over a 10 GHz bandwidth, provide a high quality output beam pattern, and operate under ultra-high vacuum conditions. The coupler converts a circular waveguide TE11 mode into the free space Laguerre Gaussian LG00 mode over the frequency band of 90–100 GHz with a measured return loss of between -30 and -40 dB and a simulated Gaussian coupling efficiency of over 99% at 94 GHz.

    ORCID iDs

    McElhinney, Paul, Donaldson, Craig R. ORCID logoORCID: https://orcid.org/0000-0001-6627-2461, McKay, Johannes E., Zhang, Liang ORCID logoORCID: https://orcid.org/0000-0002-6317-0395, Robertson, Duncan A., Hunter, Robert I., Smith, Graham M., He, Wenlong ORCID logoORCID: https://orcid.org/0000-0001-7018-0527 and Cross, Adrian W. ORCID logoORCID: https://orcid.org/0000-0001-7672-1283;
    • Item type:Article
      ID code:59719
      Dates:
      Date
      Event
      16 February 2017
      Published
      16 February 2017
      Published Online
      24 January 2017
      Accepted
      Notes:(c) 2017 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other users, including reprinting/ republishing this material for advertising or promotional purposes, creating new collective works for resale or redistribution to servers or lists, or reuse of any copyrighted components of this work in other works.
      Keywords:corrugated horn, Gaussian coupling, microwave window, W-band, gyro-amplifier, high power, wideband, input return loss, Electrical engineering. Electronics Nuclear engineering, Electronic, Optical and Magnetic Materials, Electrical and Electronic Engineering
      Subjects:Technology > Electrical engineering. Electronics Nuclear engineering
      Department:Faculty of Science > Physics
      Depositing user: Pure Administrator
      Date deposited:07 Feb 2017 09:43
      Last modified:29 Jun 2021 01:12
      Related URLs:
      URI:https://strathprints.strath.ac.uk/id/eprint/59719
    CORE (COnnecting REpositories)