Importance

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Abstract

Duplexing and combining networks are provided. In one embodiment, a duplexing network for combining two signals comprises: a first port; a second port; a third port; a first hybrid coupler coupled to the first port; a second hybrid coupler coupled to the second port; a third hybrid coupler coupled to the third port; wherein the first, second, and third hybrid couplers are each four-port quadrature hybrid couplers; wherein the first hybrid splits a first signal received at the first port between a first diplexer and a second diplexer; wherein the second hybrid splits a second signal received at the first port between the first diplexer and the second diplexer; the third hybrid receives a first composite signal from the first diplexer and a second composite signal from the second diplexer and constructively sums the first composite signal and the second composite signal to produce an output at the third port.

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First Claim