| 摘要 |
A bi-directional signal interface includes a carrier signal source that generates a carrier traveling wave at an output. A first traveling wave structure includes a first and a second waveguide having an input that is coupled to the output of the carrier signal source. The first and second waveguide propagate the carrier traveling wave. A second traveling wave structure includes an outgoing signal port that receives an outgoing signal and a bi-directional signal port that receives an incoming electrical signal and provides the outgoing signal. The first and second traveling wave structures have an electromagnetic interaction region with a geometry that is chosen for a desired outgoing-to-incoming signal isolation. A detector having an input coupled to the output of the first traveling wave structure generates an electrical signal related to the incoming electrical signal.
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