Communications: radio wave antennas – Antennas – Wave guide type
Patent
1978-09-18
1980-11-25
Lieberman, Eli
Communications: radio wave antennas
Antennas
Wave guide type
343100ST, 343DIG2, H01Q 128
Patent
active
042361613
ABSTRACT:
An offset antenna and feed combination for use in a satellite communication system is disclosed wherein an array of adjacent microwave energy feed elements is disposed within a predetermined shape on the focal surface of the antenna for delivering electromagnetic energy to a remote, correspondingly shaped zone. Electromagnetic energy beams are selectively radiated towards predetermined areas of the overall remote zone by associated cluster groups of feed elements typically arranged as a minimum of one central and six surrounding feed elements. Additionally, each surrounding type of feed element of a cluster may be shared by two or more overlapping clusters, the overlapping clusters generating contiguous beams of electromagnetic energy in different frequency subbands.
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Bell Telephone Laboratories Incorporated
Lieberman Eli
Pfeifle Erwin W.
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