RESONANCE COUPLER, TRANSMISSION UNIT, SWITCHING SYSTEM AND DIRECTIONAL COUPLER

摘要

PROBLEM TO BE SOLVED: To provide a resonance coupler capable of performing insulation transmission with a small transmission loss while dividing a transmission signal into plural pieces.SOLUTION: The resonance coupler according to an aspect of the disclosure includes: a first resonator to which a transmission signal is input; a second resonator which is disposed being opposed to a first side of the first resonator separated away therefrom, and which is electromagnetically coupled with the first resonator, and to which the transmission signal is insulated and transmitted from the first resonator; and a third resonator which is disposed being opposed to a second side opposed to the first side of the first resonator separated away therefrom, and which is electromagnetically coupled with the first resonator, and to which the transmission signal is insulated and transmitted from the first resonator.