Input coupling systems for millimetre-wave gyrotron travelling wave amplifiers

Zhang, Liang and Donaldson, Craig R. and Garner, Jason and Cross, Adrian W. and He, Wenlong (2018) Input coupling systems for millimetre-wave gyrotron travelling wave amplifiers. IET Microwaves, Antennas & Propagation. pp. 1-4. ISSN 1751-8725 (https://doi.org/10.1049/iet-map.2018.0040)

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Abstract

Input couplers for millimetre-wave gyrotron travelling wave amplifiers are presented in this study. A W-band input coupling system composed of a pillbox window, a smoothly curved waveguide bend, a T-junction and a broadband reflector was numerically optimised, constructed and measured. An average transmission coefficient of −2.0 dB over a designed operating frequency range was measured. Additionally, a higher-frequency input coupler for operation at a central frequency of 372 GHz was also designed based on a multiple-hole coupling configuration. The simulated transmission coefficient was −0.5 dB if the ohmic loss is not considered.

ORCID iDs

Zhang, Liang ORCID logoORCID: https://orcid.org/0000-0002-6317-0395, Donaldson, Craig R. ORCID logoORCID: https://orcid.org/0000-0001-6627-2461, Garner, Jason ORCID logoORCID: https://orcid.org/0000-0002-9985-0739, Cross, Adrian W. ORCID logoORCID: https://orcid.org/0000-0001-7672-1283 and He, Wenlong ORCID logoORCID: https://orcid.org/0000-0001-7018-0527;
  • Item type:Article
    ID code:63865
    Dates:
    Date
    Event
    9 April 2018
    Published
    9 April 2018
    Published Online
    22 March 2018
    Accepted
    Notes:This paper is a postprint of a paper submitted to and accepted for publication in IET Microwaves Antennas and Propagation and is subject to Institution of Engineering and Technology Copyright. The copy of record is available at the IET Digital Library.
    Subjects:Technology > Electrical engineering. Electronics Nuclear engineering
    Department:Faculty of Science > Physics
    Depositing user: Pure Administrator
    Date deposited:26 Apr 2018 09:27
    Last modified:11 Nov 2024 11:58
    URI:https://strathprints.strath.ac.uk/id/eprint/63865
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