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.
The intelligent quadrifilar helix antenna for mobile satellite communications
2000 IEEE Aerospace Conference. Proceedings (Cat. No.00TH8484) ; 5 ; 171-177 vol.5
2000-01-01
829930 byte
Conference paper
Electronic Resource
English
The Intelligent Quadrifilar Helix Antenna for Mobile Satellite Communications
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