MULTILAYERED BROADSIDE COUPLER HAVING BRANCH LINES

摘要

A multi-layered broadside coupler having branch lines is provided to improve the compensation characteristic in a high frequency without being affected by a parasitic element. A multi-layered broadside coupler having branch lines includes a through line(301), and a coupling line(302). The through line(301) has a branch line at the end. The coupling line(302) is placed at the lower layer of the through line(301), and has a branch line formed at the end. The branch lines lower impedance at ends of the through line(301) and the coupling line(302) so as to improve isolation and matching characteristics.