Feed apertures with crosspolarization compensation for linear po

Details Feed apertures with crosspolarization compensation for linear po Feed apertures with crosspolarization compensation for linear po

1981-11-06

1983-08-09

Lieberman, Eli

Communications: radio wave antennas

Antennas

With polarization filter or converter

343779, 343786, H01Q 1913, H01Q 1302

Patent

active

043982000

ABSTRACT:
The crosspolarization components radiated by adjacent orthogonally linearly polarized feed horns of a reflector antenna system are compensated by structural modifications incorporated in the feed horns. In a first embodiment, the modified feed horns have curved walls and included shaped septa. Other embodiments involve the use of shaped walls or shaped septa only. In the case of an offset reflector, asymmetric modifications of the wall shape and septa are employed. For flared feed horns with rectangular cross section, the crosspolarization compensation is provided by curving the forward edges of the horn walls convexly or concavely as required.

REFERENCES:
patent: 2712067 (1955-06-01), Kock
patent: 3031664 (1962-04-01), Wielobob
patent: 4042935 (1977-08-01), Ajioka et al.
patent: 4109253 (1978-08-01), Chu
patent: 4115782 (1978-09-01), Han et al.

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