Polarization means for generating circularly polarized electro-m

Details Polarization means for generating circularly polarized electro-m Polarization means for generating circularly polarized electro-m

1981-07-08

1984-10-23

Lieberman, Eli

Communications: radio wave antennas

Antennas

With polarization filter or converter

343872, 343909, H01Q 1524

Patent

active

044791283

ABSTRACT:
A re-polarization means for generating circular polarized electro-magnetic waves using single or multi-layer lattice structure mounted in front of a radiation aperture with the lattice structure comprising a plurality of conductors which extend parallel to each other and/or meander shaped and wherein the lattice structure has one or more additional layers which are closer to the radiation aperture and which has a plurality of parallel conductors but that are inclined by an angle of 45.degree. relative to the direction of the conductors mounted on the other layers which meander. Additionally, orthogonal polarization suppression is achieved with the apparatus of the invention. The invention can be applied to a radom of a target tracking radar antenna, for example.

REFERENCES:
patent: 3031664 (1962-04-01), Wielobob
patent: 3560984 (1971-02-01), Lee et al.
patent: 3754271 (1973-08-01), Epis
patent: 3831176 (1974-08-01), Epis et al.
patent: 4127857 (1978-11-01), Capps et al.

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