Bi-directional signal interface

The bi-directional signal interface comprises a first waveguide for propagating a first traveling wave. The first waveguide has a different end connected to the RF bi-directional port receives the RF reception signal with one end connected to the RF input port for receiving a RF transmission signal and transmits the RF transmit signal. The second waveguide is positioned proximate to the first waveguide. The second waveguide is connected to an output port for transmitting the received RF signal is received at one end. Irreversible couplers have, and connect the field to the second waveguide in the first waveguide through the output port to the RF reception signal from the bi-directional port coupled to the second waveguide in the first waveguide to the non-reversible manner, and then, and the RF input port The RF transmission signal is to be sent from the first waveguide to the RF bi-directional port.Signal interface, an optical waveguide, a bidirectional port, a transmission signal, the received signal