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The diplexer 5 is coupled to the corporate feed network 20, which performs a power distribution function between diplexer port 6 and the antenna feed ports 60a-67a coupling the respective antenna horns 60-67 to the network 20. The invention is particularly useful for those applications in which the satellite receive and transmit beam coverages are coincident and provides the advantages of lower cost and enhanced weight and space efficiency. The diplexer and elements of the corporate feed network, as well as the antenna radiating elements, are adapted for wideband operation over both the uplink and downlink frequency bands. The feed network further comprises a single wideband corporate feed network for coupling to the respective antenna radiating elements comprising the antenna system. The feed network comprises a single, frequency-sensitive diplexer at the feed network input for separating the transmit and receive signals and coupling them to the receiver and transmitter. In accordance with the invention, a single wideband uplink and downlink feed network is employed. tapered array or binomial arrayДЄn improved microwave feed network for coupling a satellite antenna system to the satellite receiver and transmitter is disclosed. H01Q21/22- Antenna units of the array energised non-uniformly in amplitude or phase, e.g.H01Q21/06- Arrays of individually energised antenna units similarly polarised and spaced apart.238000003379 elimination reaction Methods 0.000 description 1.238000005315 distribution function Methods 0.000 description 1.238000006722 reduction reaction Methods 0.000 description 2.230000005540 biological transmission Effects 0.000 description 13.230000001603 reducing Effects 0.000 abstract description 4.

238000005859 coupling reaction Methods 0.000 claims description 25.238000010168 coupling process Methods 0.000 claims description 25.

238000004891 communication Methods 0.000 claims abstract description 7.

Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.) Filing date Publication date Priority to US86468486A priority Critical Priority to US864,684 priority Application filed by Hughes Aircraft Company filed Critical Hughes Aircraft Company Publication of WO1987007439A1 publication Critical patent/WO1987007439A1/en Links Linhardt Original Assignee Hughes Aircraft Company Priority date (The priority date is an assumption and is not a legal conclusion.

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Google Patents Combined uplink and downlink satellite antenna feed networkДownload PDF Info Publication number WO1987007439A1 WO1987007439A1 PCT/US1987/000677 US8700677W WO8707439A1 WO 1987007439 A1 WO1987007439 A1 WO 1987007439A1 US 8700677 W US8700677 W US 8700677W WO 8707439 A1 WO8707439 A1 WO 8707439A1 Authority WO WIPO (PCT) Prior art keywords antenna satellite frequency diplexer feed network Prior art date Application number PCT/US1987/000677 Other languages French ( fr) Google Patents WO1987007439A1 - Combined uplink and downlink satellite antenna feed network WO1987007439A1 - Combined uplink and downlink satellite antenna feed network

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