Non-reciprocal bidirectional duplexer

Details Non-reciprocal bidirectional duplexer Non-reciprocal bidirectional duplexer

1989-03-29

1990-03-13

Olms, Douglas W.

Multiplex communications

Wide area network

Packet switching

333 11, 333100, 455 6, 455 14, 370 24, H04B 158, H04B 323

Patent

active

049088203

ABSTRACT:
A non-reciprocal bidirectional duplexer includes a first transmission medium extending from a first terminal to a third terminal; a second transmission medium extending from the second terminal to the third terminal; and a plurality of non-reciprocal, bidirectional phase shifting elements, coupling the transmission mediums and spaced along them; each of the phase shifting elements includes means for amplifying a signal in a first direction from the first to the second transmission medium and for amplifying a signal in the second direction from the second to the first transmission medium; and means for establishing a phase differential between the signals moving in the first and second directions.

REFERENCES:
patent: 4325140 (1982-04-01), Stitzer
patent: 4761621 (1988-08-01), Kane et al.
patent: 4801901 (1989-01-01), Ayasli

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