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    Beam-Splitting Condition in a Broadside Symmetric Leaky-Wave Antenna of Finite Length

    Access Status
    Fulltext not available
    Authors
    Sutinjo, Adrian
    Okoniewski, M.
    Johnston, R.
    Date
    2008
    Type
    Journal Article
    
    Metadata
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    Citation
    Sutinjo, A. and Okoniewski, M. and Johnston, R. 2008. Beam-Splitting Condition in a Broadside Symmetric Leaky-Wave Antenna of Finite Length. IEEE Antennas and Wireless Propagation Letters. 7: pp. 609-612.
    Source Title
    IEEE Antennas and Wireless Propagation Letters
    DOI
    10.1109/LAWP.2008.2002906
    ISSN
    1536-1225
    URI
    http://hdl.handle.net/20.500.11937/6985
    Collection
    • Curtin Research Publications
    Abstract

    In this letter, the influence of the truncation effects onthe beam-splitting property of a broadside symmetric leaky-waveantenna (LWA) is presented. It will be shown that for finite lengthLWAs, the maximum broadside beam exists at higher phase constantvalues than suggested by infinite LWA analysis. The accuratebeam-splitting conditions are obtained using a computer search algorithmand are reported for a range of practical LWAlengths. Thebehavior of the aperture distributions at the split conditions is thendiscussed. To illustrate the application of the result, the theoreticalbeam-splitting condition plot is used to identify the beam-splittingpoint of a microstrip based LWA design. Finally, other design implicationsof the findings are discussed.

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