Filter interconnection matrix

Details Filter interconnection matrix Filter interconnection matrix

1986-08-14

1989-08-15

Olms, Douglas W.

Multiplex communications

Wide area network

Packet switching

370123, H04Q 1102, H04J 110, H04B 7185

Patent

active

048582298

ABSTRACT:
A satellite communications system employs separate subsystems for providing broadcast and point-to-point two-way communications using the same assigned frequency band. The broadcast and point-to-point subsystems employ an integrated satellite antenna system which uses a common reflector (12). The point-to-point subsystem achieves increased communication capacity through the reuse of the assigned frequency band over multiple, contiguous zones (32, 34, 36, 38) covering the area of the earth to be serviced. Small aperture terminals in the zones are serviced by a plurality of high gain downlink fan beams (29) steered in the east-west direction by frequency address. A special beam-forming network (98) provides in conjunction with an array antenna (20) the multiple zone frequency address function. The satellite (10) employs a filter interconnection matrix (90) for connecting earth terminals in different zones in a manner which permits multiple reuse of the entire band of assigned frequencies. A single pool of solid state transmitters allows rain disadvantaged users to be assigned higher than normal power at minimum cost. The intermodulation products of the transmitters are geographically dispersed.

REFERENCES:
patent: 4144495 (1979-03-01), Metzger
patent: 4228401 (1980-10-01), Wachs et al.
patent: 4706239 (1987-11-01), Ito et al.
patent: 4730310 (1988-03-01), Acampora et al.
Patent Abstracts of Japan, vol. 8, No. 256 (E-280) (1693), Nov. 22, 1984, see entire document.
S. N. Verma et al., "Westar Satellite System Expansion," Int'l. Conference on Communications, Denver Colorado, Jun. 14-18, IEEE (New York), vol. 3 of 4, pp. 58.4.1-58.4.5.
G. Berk et al., "Comparative Study of FDMA, TDMA and Hybrid 30/20 GHz Satellite Communications System for Small Users," International Conference on Communications, Conference Record, Philadelphia, Jun. 13-17, 1982, IEEE (New York), pp. 5E.2.2-5E.2.6.

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