Abstract: A communication system, a method of and an apparatus for communicating messages. N messages are transmitted from an originating station to a relaying station in a signal with frequencies within a bandwidth B, with each of the N messages having frequencies within a unique frequency band. Messages with adjacent frequency bands have the same or different bandwidths. At the relaying station, the messages are separated into groups of messages having the same bandwidth, where all messages in any group occupy non-adjacent frequency bands, and the messages of each group are then combined. Each combined group of messages is applied to a separate amplifier. Two or more messages of the same bandwidth may share a common traveling wave tube amplifier. Each amplified group of messages is then separated into separate messages which are transmitted to respective receiving stations.

Abstract: A system and method for increasing the performance of a satellite communication system by using a multivariate analysis approach to optimize the pointing of the boresight of a satellite-mounted antenna. Optimizing the pointing of the boresight of the antenna minimizes sidelobe generation, and thus Co-Channel Interference (CCI) in geographic areas served by the system. By minimizing CCI, the overall system performance of the communication system is optimized. To optimize the pointing of the boresight of the antenna, the overall performance of the satellite communication system is determined, and the boresight of the antenna is iteratively repointed in the direction of increasing system performance until the optimized boresight pointing is determined. Alternatively, the frequency re-use plan of the satellite communication system may be analyzed to determine a high density cell region and the boresight may be pointed to the high density cell region.

Abstract: A variable bandwidth signal multiplexer and demultiplexer. Aspects of the multiplexer may include a uniform bandwidth multiplexer with a composite signal output and a plurality of first bandwidth communication signal inputs. The first bandwidth signal inputs may be individually coupled to filters spanning a preselected bandwidth. A first external signal connection may couple to a first one of the first bandwidth communication signal inputs, while a first power divider may couple to a second external signal connection. The first power divider may include a first split output coupled to a second one of the first bandwidth communication signal inputs. The first power divider may also include a second split output coupled to a third one of the first bandwidth communication signal inputs. Aspects of the present invention also provide a demultiplexer that may generally correspond to various aspects of the multiplexer.