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    Analysis and design of slitted waveguides with suppressed slot-mode using periodic FDTD.

    Access Status
    Fulltext not available
    Authors
    Cameron, T.
    Sutinjo, Adrian
    Okoniewski, M.
    Date
    2012
    Type
    Journal Article
    
    Metadata
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    Citation
    Cameron, Trevor R. and Sutinjo, Adrian T. and Okoniewski, Michal 2012. Analysis and design of slitted waveguides with suppressed slot-mode using periodic FDTD. IEEE Transactions on antennas and propagation 60 (8): pp. 3654-3660.
    Source Title
    IEEE Transaction of antennas and propagation
    DOI
    10.1109/TAP.2012.2201098
    ISSN
    0018-926X
    URI
    http://hdl.handle.net/20.500.11937/32196
    Collection
    • Curtin Research Publications
    Abstract

    The characteristics of the slot- and perturbed TE10 modes in a slitted waveguide are studied for the purpose of suppressing the undesired slot-mode. The use of the finite difference time domain (FDTD) with periodic boundary conditions allows the extraction of the individual complex waven umbers of the two modes, and thus the tracking of the modes as modifications are made to the structure. Two structures are presented, the first suppressing the propagation of the slot-mode, and the second suppressing the radiation of the slot-mode. Experimental validation is presented supporting the numerical results. It will be shown that a wide band suppression of the slot-mode propagation is achievable. However, there is a significant impact on the propagation characteristics of the desired perturbed TE10 modes. Conversely, the suppression of the slot-mode radiation is achievable with minimal impact on the perturbed TE10 mode.

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