Polarization diversity device for reducing fading effect

Details Polarization diversity device for reducing fading effect Polarization diversity device for reducing fading effect

1996-12-26

1999-04-13

Gross, Anita Pellman

Communications: radio wave antennas

Antennas

Microstrip

343701, 343767, 343770, 343778, 343823, H01Q 302, H01Q 126, H01Q 300, H01Q 1310

Patent

active

058942874

ABSTRACT:
A polarization diversity device for reducing a fading effect. The polarization diversity device for reducing a fading effect, which has a microstrip disk type of antenna for outputting a signal received from a first position, in the form of a field dipole polarized in a direction of X, and outputting a signal received from a second position perpendicular to the first position, in the form of a field dipole polarized in a direction of Y, a phase shifter for phase-shifting the signal received from the second position, thereby to set the signal having the most appropriate value to a fading environment of a corresponding channel, and a combiner for combining the signal received from the first position, with the signal outputted from the phase shifter.

REFERENCES:
patent: 3665480 (1972-05-01), Fassett
patent: 4125838 (1978-11-01), Kaloi
patent: 4186347 (1980-01-01), Brockman et al.
patent: 4410891 (1983-10-01), Schaubert et al.
patent: 4538153 (1985-08-01), Taga
patent: 4728960 (1988-03-01), Lo
patent: 5410749 (1995-04-01), Siwiak et al.
patent: 5499033 (1996-03-01), Smith
Microwave journal Jon F. Mcilvenna, Monolithic phase arrays for EHF communications terminals, and p. 116, figures 6 and 7, Mar. 1988.

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