Communications: radio wave antennas – Antennas – With means for moving directive antenna for scanning,...
Reexamination Certificate
2005-09-13
2005-09-13
Nguyen, Hoang V. (Department: 2821)
Communications: radio wave antennas
Antennas
With means for moving directive antenna for scanning,...
C343S880000, C343S881000, C343SDIG002
Reexamination Certificate
active
06943745
ABSTRACT:
A method, apparatus, article of manufacture, and a memory structure for generating reconfigurable beams is disclosed herein. The apparatus comprises a stationary feed array having a plurality of selectably activatable feed array elements, the feed array having a feed array sensitive axis; a reflector, illuminated by the selectably activatable feed array elements; a first mechanism, coupled to the reflector, for varying a position of the reflector along the feed array axis; wherein a desired beam size of the antenna system is selected by varying the reflector position along the feed array sensitive axis and by selectably activating the feed array elements.
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patent: 89 12584 (1991-09-01), None
J. U. I. Syed and A.D. Oliver, “Variable Beamwidth Dual-Reflector Antenna, IEEE Conference on Antennas & Propagation (ICAP)”, Publication #407, pp. 92-96, Apr. 1998.
A. Roederer, and M. Sabbadini, “A Novel Semi-Active Multibeam Antenna Concept”, IEEE Antennas & Propagation Symposium Digest, pp. 1884-1887, Jul. 1990.
Fink Joel A.
Goyette Guy
Massey Cameron
Rao Sudhakar K.
Voulelikas George
Gates & Cooper
Nguyen Hoang V.
The Boeing Company
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