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    Calibration of smart antenna systems: measurements and results

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    Authors
    Tyler, Neville
    Allen, Ben
    Aghvami, A.Hamid
    Affiliation
    King's College London
    University of Oxford
    Issue Date
    2007-06
    Subjects
    adaptive antenna arrays
    calibration
    
    Metadata
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    Abstract
    Smart antennas (SAs) are viewed as a candidate enabling technology for modern wireless communication systems to increase network capacity and facilitate location-based services. By conducting measurements on an SA test-bed, the signal distortion introduced by the implementation of a practical system can be analysed. This distortion can have significant impact on the estimation of signal wavefronts. Measurements have been conducted at the system, sub-system and component levels, using an SA developed for this purpose and employing a uniform circular array. This has enabled the error introduced by an implemented system to be examined. Calibration procedures are developed to overcome these implementation limitations. The cause and effects of these errors are examined, and system manufacturing tolerances and temporal thermal effects on the analogue sub-systems are shown to be the major contributor to this error; these results are presented and analysed.
    Citation
    Tyler, N., Allen, B., Aghvami, A.H., (2007) 'Calibration of smart antenna systems: measurements and results' IET Microwaves, Antennas & Propagation 1(3):629-638.
    Publisher
    IET
    Journal
    IET Microwaves, Antennas & Propagation
    URI
    http://hdl.handle.net/10547/270954
    DOI
    10.1049/iet-map:20050140
    Additional Links
    http://digital-library.theiet.org/content/journals/10.1049/iet-map_20050140
    Type
    Article
    Language
    en
    ISSN
    1751-8725
    ae974a485f413a2113503eed53cd6c53
    10.1049/iet-map:20050140
    Scopus Count
    Collections
    Centre for Wireless Research (CWR)

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