Low loss transmission line for a 3.4-kW, 93-GHz gyro-traveling-wave amplifier

Donaldson, Craig R. and Zhang, Liang and He, Wenlong and Cross, Adrian W. and Ronald, Kevin and Whyte, Colin G. (2021) Low loss transmission line for a 3.4-kW, 93-GHz gyro-traveling-wave amplifier. IEEE Transactions on Electron Devices, 68 (1). pp. 364-368. ISSN 0018-9383 (https://doi.org/10.1109/TED.2020.3039427)

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Abstract

In this article, a transmission line system for the propagation of millimeter-wave radiation is presented. The full system includes a TE11-to-TE01 mode converter, waveguide tapers, miter bends, and many straight sections. The design of each of these components is described, and the optimized simulation results are given. The mode converter shows a greater than 96% mode conversion efficiency that can be achieved over a 2% bandwidth at the ${W}$ -band. The miter bends demonstrate a transmission loss of 0.04 dB each over the same bandwidth when they are configured to introduce a mixture of higher order waveguide modes before the reflecting surface. An example transmission line system with a propagation length of 20 m, inclusive of four 90° bends with an oxygen-free high conductivity (OFHC) copper waveguide material, was studied over a 90-96-GHz frequency range and showed a 0.84-dB transmission loss at 93 GHz.

ORCID iDs

Donaldson, Craig R. ORCID logoORCID: https://orcid.org/0000-0001-6627-2461, Zhang, Liang ORCID logoORCID: https://orcid.org/0000-0002-6317-0395, He, Wenlong, Cross, Adrian W. ORCID logoORCID: https://orcid.org/0000-0001-7672-1283, Ronald, Kevin ORCID logoORCID: https://orcid.org/0000-0002-8585-0746 and Whyte, Colin G. ORCID logoORCID: https://orcid.org/0000-0002-5431-2443;
  • Item type:Article
    ID code:74690
    Dates:
    Date
    Event
    6 January 2021
    Published
    8 December 2020
    Published Online
    17 November 2020
    Accepted
    Notes:© 2020 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, 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 component of this work in other works.
    Subjects:Technology > Electrical engineering. Electronics Nuclear engineering
    Science > Physics
    Department:Faculty of Science > Physics
    Depositing user: Pure Administrator
    Date deposited:25 Nov 2020 13:38
    Last modified:11 Nov 2024 12:54
    Related URLs:
    URI:https://strathprints.strath.ac.uk/id/eprint/74690
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