Multibeam antenna

Details Multibeam antenna Multibeam antenna

1991-03-01

1992-08-04

Wimer, Michael C.

Communications: radio wave antennas

Antennas

Wave guide type

343781CA, 343914, H01Q 1300

Patent

active

051362945

ABSTRACT:
A multibeam antenna capable of communicating with a plurality of satellites on stationary orbits at the same time includes a single main reflector, and a plurality of primary radiators for radiating electromagnetic waves toward the main reflector. The main reflector is constituted by the same number of partial reflectors as the primary radiators, the partial reflectors being joined to each other. Each of the partial reflectors is defined by a part of a different one of paraboloids which are different in the position of focus from each other. The primary reflectors are located at the positions of individual focuses. A subreflector is disposed between the main reflector and the positions of focuses and made up of a plurality of curved portions and a single flat portion.

REFERENCES:
patent: 3096519 (1963-07-01), Martin
patent: 3852763 (1974-12-01), Kruetel, Jr. et al.
patent: 3898667 (1975-08-01), Raab
patent: 4208661 (1980-06-01), Vokurka
patent: 4544928 (1985-10-01), Afifi et al.
patent: 4605935 (1986-08-01), Kusano
patent: 4647938 (1987-03-01), Roederer et al.
patent: 4712111 (1987-12-01), Ohta et al.
patent: 4792813 (1988-12-01), Rosen
patent: 4823143 (1989-04-01), Bockrath

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