Multiple-beam antenna system using hybrid frequency-reuse...

Details Multiple-beam antenna system using hybrid frequency-reuse... Multiple-beam antenna system using hybrid frequency-reuse...

2008-06-03

2008-06-03

Lee, Andrew C. (Department: 2616)

Multiplex communications

Communication over free space

Repeater

C370S334000

Reexamination Certificate

active

07382743

ABSTRACT:
Antenna system and methodology for producing multiple interleaved beams using a hybrid frequency-reuse scheme. In particular, depending on the traffic demand in specific coverage areas, some beams are assigned with frequency channels in accordance with a 4-cell frequency-reuse scheme, and the other beams are assigned with frequency channels in accordance with a 7-cell frequency-reuse scheme. The antenna system has multiple feeds divided into clusters, and a number of reflectors fed by respective feed clusters and configured to form one beam for each of the feeds.

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Sudhaker K. Rao, “Parametric Design and Analysis of Multiple-Beam Reflector Antennas for Satellite Communications,” IEEE Antennas and Propagation Magazine, Aug. 2003, pp. 28-34, vol. 45, No. 4.

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