公开(公告)号：US20170201225A1

公开(公告)日：2017-07-13

申请号：US14992315

申请日：2016-01-11

Applicant: NATIONAL CHUNG SHAN INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： YEONG-HER WANG ,  CHUN-CHI SU ,  EN-YANG LIN ,  MING-WHAY LAI

IPC: H03H7/20 ,  H03H7/19

CPC classification number: H03H7/20 ,  H03H7/19

Abstract: An all-pass wideband phase shifter is introduced. Series connections in parallel between two 3 dB hybrid couplers include combining two 90-degree phase shifters and two attenuators to form a novel phase shifter framework. Under specific controls of continuous 90-degree phase shifters and attenuators in four quadrants, 360-degree all-pass phase shifting is effected by phase shifting and vector composition.