System and method for combining multiple transmitters in a multi

Details System and method for combining multiple transmitters in a multi System and method for combining multiple transmitters in a multi

1994-07-07

1996-12-10

Faile, Andrew

Telecommunications

Transmitter

Plural separate transmitters or channels

455129, 455 331, 333129, 333132, H04B 102

Patent

active

055840582

ABSTRACT:
A system (10) for combining a plurality of transmission channels within a multiple channel communication system includes a master computer (20) that controls the transmission frequency and schedule of a plurality of channel transmitters (18). Each channel transmitter (18) is electrically connected to a channel transmitter combiner filter (12). Each channel transmitter combiner filter (12) is fixedly tuned to a unique bandwidth window along the electromagnetic spectrum, and two sets (24), (26) of channel transmitter combiner filters are formed of the channel transmitter combiner filters (12) whose unique bandwidth windows are adequately spaced for electrical isolation along the electromagnetic spectrum. Each set (24), (26) of channel transmitter combiner filters is electrically connected to a common antenna (28) by means of a three decibel (3 dB) coupler (22).

REFERENCES:
patent: 2594055 (1949-06-01), Miller
patent: 3474451 (1969-10-01), Abel
patent: 3512103 (1968-06-01), Berman
patent: 4449128 (1984-05-01), Weir
patent: 4644303 (1987-02-01), Jachowski
patent: 4723306 (1988-02-01), Fuenfgelder et al.
patent: 5034707 (1991-07-01), Kagstrom
patent: 5163181 (1992-11-01), Koontz
patent: 5229729 (1993-07-01), Nishikawa et al.
"The Design of a GSM Base-Station Tuneable Combiner" Microwave Engineering Europe; Hill et al; Oct. 1992 pp. 57-58 and 61-62, 65.

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