Apparatus for converting the polarization of electromagnetic wav

Details Apparatus for converting the polarization of electromagnetic wav Apparatus for converting the polarization of electromagnetic wav

1981-06-02

1983-06-07

Moore, David K.

Communications: radio wave antennas

Antennas

With polarization filter or converter

343786, 343909, H01Q 1900

Patent

active

043873774

ABSTRACT:
Apparatus for converting the polarization of electromagnetic waves from linear polarization to circular polarization wherein a plurality of layers of meandering electrical conductors are formed into a sandwich mounted one above the other wherein at least some of the conductors on different sandwich layers are in phase with each other but in which at least one of the electrical conductors on at least one of the sandwich layers are formed so that adjacent or some of the conductors are not in phase with each other but are phase offset such that the composite structure produces improved circular polarization as compared to polarization converters of the prior art. The sandwich structure according to the invention can be utilized as integrated into a radome of a tracking radar antenna for example.

REFERENCES:
patent: 3754271 (1973-08-01), Epis
patent: 3762666 (1973-10-01), Thompson
patent: 3831176 (1974-08-01), Epis et al.
patent: 3854140 (1974-12-01), Ranghelli et al.
patent: 4178574 (1979-12-01), Edens et al.

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