Patent ID: 9479074
Filing Date: 2016-10-25
CPC Classification: H01P,H02M,H03K

Claim Text:
1. A resonance coupler comprising: a first resonator to which a transmission signal is input; a second resonator to which the transmission signal is isolatedly transmitted from the first resonator, the second resonator spaced from and opposed to a first side of the first resonator, and electromagnetically coupled with the first resonator; and a third resonator to which the transmission signal is isolatedly transmitted from the first resonator, the third resonator spaced from and opposed to a second side, opposite to the first side, of the first resonator, electromagnetically coupled with the first resonator, and DC-isolated from the second resonator, wherein the transmission signal is a high-frequency signal, the first resonator includes a first loop wiring having an open loop shape, the second resonator includes a second loop wiring having an open loop shape, the third resonator includes a third loop wiring having an open loop shape, the first resonator includes a first reference terminal electrically connected to one end of the first loop wiring, the second resonator includes a second reference terminal electrically connected to one end of the second loop wiring, the third resonator includes a third reference terminal electrically connected to one end of the third loop wiring, and the first resonator further includes a first outer loop wiring surrounding the first loop wiring, the first outer loop electrically connected to the first reference terminal.