Quadrature hybrid coupler, amplifier, and wireless communication apparatus

摘要

A shunt capacitor includes first and second zigzag wirings having different lengths, formed in a first wiring layer, third and second zigzag wirings having different lengths, formed in a second wiring layer, an induction device and a ground. The first and fourth zigzag wirings are connected to the induction device, and the second and third zigzag wirings are connected to the ground. The first and second zigzag wirings and the third and fourth zigzag wirings cross each other three-dimensionally.