Cross-polarization corrector for circular waveguide

Details Cross-polarization corrector for circular waveguide Cross-polarization corrector for circular waveguide

1984-03-29

1985-10-22

Gensler, Paul

Telecommunications

Transmitter

With coupled antenna

333 21A, 333251, 343890, H04B 104, H01P 116

Patent

active

045493103

ABSTRACT:
A UHF broadcast antenna system uses circular waveguide for the run from the high-power final amplifier to the antenna. Undesired cross-polarization components are formed in the circular waveguide due to unavoidable tolerances. Correction of the cross-polarization components is accomplished by a correction apparatus for sampling the principal polarization-plane signal, and reinjecting the sample with controlled amplitude and phase into the circular waveguide in the plane of the cross-polarization component for cancelling the cross-polarization.

REFERENCES:
patent: 2607849 (1952-08-01), Purcell et al.
patent: 2981906 (1961-04-01), Turner
patent: 3516032 (1970-06-01), Wernli
patent: 3656070 (1972-04-01), Monaghan et al.
patent: 3678420 (1972-07-01), Alsberg
patent: 3697898 (1972-10-01), Blackier et al.
patent: 4100514 (1978-07-01), DiTullio et al.
patent: 4305051 (1981-12-01), Hai
patent: 4375052 (1983-02-01), Anderson

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