This paper details the concept of the intelligent quadrifilar helix antenna (I-QHA) as an antenna for mobile satellite communications. The main advantage of the I-QHA is the potential diversity gain of up to 14 dB in heavily shadowed environments, which may be obtained by intelligent combining of the elements of the antenna. The I-QHA may have multiband or multimode capabilities enabling it to operate in both satellite and terrestrial mobile communications environments. The adaptive matching component of the I-QHA not only matches the antenna to different frequency bands or sub-bands, but may also counter the detuning effects caused by the user.


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    Title :

    The intelligent quadrifilar helix antenna for mobile satellite communications


    Contributors:
    Leach, S.M. (author) / Agius, A.A. (author) / Saunders, S.R. (author)


    Publication date :

    2000-01-01


    Size :

    829930 byte





    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English



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