All-pass network

Abstract

A phase-shift network may include a first capacitor connected between a first input node and a first output node, and a second capacitor connected between a second input node and a second output node. Further, a first filter section may be connected between the first input node and the second output node, and a second filter section may be connected between the second input node and the first output node. One or both of the first and second filter sections may include a first inductance and an high-pass network. The high-pass network may include third and fourth capacitors and a first inductor. The first inductance and third and fourth capacitors may be connected in series between the respective input and output nodes. The first inductor may have a first end connected to an intermediate node between the third and fourth capacitors and a second end connected to a circuit ground.

Dependencies are inferred from the claim text.