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    Photonic true-time delay unit for broadband adaptive nulling in antenna arrays

    Access Status
    Fulltext not available
    Authors
    Juswardy, Budi
    Xiao, F.
    Alameh, K.
    Date
    2009
    Type
    Journal Article
    
    Metadata
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    Citation
    Juswardy, B. and Xiao, F. and Alameh, K. 2009. Photonic true-time delay unit for broadband adaptive nulling in antenna arrays. Optical and Quantum Electronics. 41 (11-13): pp. 819-826.
    Source Title
    Optical and Quantum Electronics
    DOI
    10.1007/s11082-010-9396-9
    ISSN
    0306-8919
    School
    Curtin Institute of Radio Astronomy (Physics)
    URI
    http://hdl.handle.net/20.500.11937/34108
    Collection
    • Curtin Research Publications
    Abstract

    An Opto-VLSI-based (VLSI: very-large-scale-integration) tunable true-time delay (TTD) generation unit used for adaptive null steering in phased array antennas is presented. The system is based on continuous tunable optical TTD technique. Arbitrary multiple true-time delays to generate multiple broadband nulls can simultaneously be synthesised for each antenna element. The proposed structured are characterised both theoretically and experimentally. Experimental results demonstrating the principle of the true-time delay for null generations are presented. The maximum time delay measured for a wavelength tuning from 1530 to 1560 nm is 9.5 ns. © 2010 Springer Science+Business Media, LLC.

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