Bi-directional signal interface

Details Bi-directional signal interface Bi-directional signal interface

2004-07-13

2009-06-30

Pascal, Leslie (Department: 2613)

Optical communications

Optical transceiver

Including optical fiber or waveguide

C398S116000

Reexamination Certificate

active

07555219

ABSTRACT:
A bi-directional signal interface includes a first waveguide that propagates a first traveling wave. The first waveguide has one end that is coupled to a RF input port that receives a RF transmission signal and another end that is coupled to a RF bi-directional port that receives a RF reception signal and that transmits the RF transmission signal. A second waveguide is positioned proximate to the first waveguide. The second waveguide has one end that is coupled to an output port that passes the received RF reception signal. A non-reciprocal coupler couples fields from the first waveguide to the second waveguide so that the RF reception signal from the bi-directional port couples from the first waveguide to the second waveguide in a substantially non-reciprocal manner and then passes through the output port, and the RF transmission signal from the RF input port passes through the first waveguide to the RF bi-directional port.

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