Compact scanning beam antenna feed arrangement

Details Compact scanning beam antenna feed arrangement Compact scanning beam antenna feed arrangement

1982-01-11

1984-03-27

Lieberman, Eli

Communications: radio wave antennas

Antennas

Wave guide type

343779, 343781P, H01Q 1912

Patent

active

044397739

ABSTRACT:
The present invention relates to a feed arrangement for use with compact scanning beam antennas which comprises a linear phased array of small feed elements (10) which form an approximate line source that radiates a wedge-shaped cylindrical beam toward a subreflector (12) which is shaped to focus the wedge-shaped cylindrical beam to a point source which then produces a spherical wavefront. The spherical wavefront can then be focused by a main reflector (14) into linear scanning beams if desired. Multiple linear phased arrays of small feed elements can be disposed parallel to each other to form a multibeam feed arrangement for producing multiple fixed or scanning spot beams.

REFERENCES:
patent: 2945228 (1960-07-01), Ramsay et al.
patent: 3267472 (1966-08-01), Fink
patent: 3881178 (1975-04-01), Hannan
patent: 4062018 (1977-12-01), Yokoi et al.
patent: 4223316 (1980-09-01), Drabowitch
patent: 4250508 (1981-02-01), Dragone
patent: 4259674 (1981-03-01), Dragone et al.
patent: 4298877 (1981-11-01), Sletten

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