Communications: radio wave antennas – Antennas – Antenna with parasitic reflector
Patent
1997-07-08
2000-02-29
Shafer, Ricky D.
Communications: radio wave antennas
Antennas
Antenna with parasitic reflector
343914, 343700MS, H01Q 1516, H01Q 1912
Patent
active
060315067
ABSTRACT:
A method for shaping reflected radio frequency signals includes geometrically shaping a reflector surface of an antenna to focus the beam, and reflectively shaping the reflector surface with phasing elements that emulate geometric shaping to configure the beam to a predetermined shape. In the preferred embodiment, the antenna comprises a geosynchronous satellite antenna conveying signals from a wave guide horn to or from a predetermined geographic area on earth. The use of a parabolic-approaching surface of reflectarray phasing elements for shaping the beam substantially improves the beam pattern bandwidth over the performance of previously known shaped beam reflectarrays.
REFERENCES:
patent: 3681769 (1972-08-01), Perrutti et al.
patent: 3718935 (1973-02-01), Ranghelli et al.
patent: 3925784 (1975-12-01), Phelan
patent: 4054874 (1977-10-01), Oltman, Jr.
patent: 4352108 (1982-09-01), Milne
patent: 4684952 (1987-08-01), Munson et al.
patent: 4733244 (1988-03-01), Edenhofer et al.
patent: 5283590 (1994-02-01), Wong
patent: 5543809 (1996-08-01), Profera, Jr.
Chwalek Thomas J.
Cooley Michael E.
Ramanujam Parthasarath
Grunebach Georgann S.
Hughes Electronics Corporation
Sales M. W.
Shafer Ricky D.
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