Communications: radio wave antennas – Antennas – With means for moving directive antenna for scanning,...
Patent
1996-12-02
1999-08-31
Wong, Don
Communications: radio wave antennas
Antennas
With means for moving directive antenna for scanning,...
343761, 343882, H01Q 300, H01Q 312
Patent
active
059459603
ABSTRACT:
An antenna is shaped to provide a predetermined contour and is mounted for universal movement on its support. An electronically controlled drive mechanism is operatively associated with the antenna to rotate the antenna to preselected positions corresponding to specific target locations. A fixed feed horn excites the antenna to generate a first radiation pattern which conforms to the shape of a primary desired target location when the antenna is moved to a first position and a second radiation pattern which conforms to the shape of a secondary desired target location when the antenna is moved to a second position. By further designing the antenna shape, multiple contoured beams for multiple target locations are obtained.
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patent: 5440320 (1995-08-01), Lach et al.
patent: 5528250 (1996-06-01), Sherwood et al.
patent: 5581265 (1996-12-01), Stirland et al.
patent: 5673057 (1997-09-01), Toland et al.
Nguyen Hoang
Space Systems Loral, Inc.
Wong Don
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