W. L. ChangT. Y. HuangT. M. ShenB. C. ChenRUEY-BEEI WU2018-09-102018-09-102007-12http://scholars.lib.ntu.edu.tw/handle/123456789/333559[SDGs]SDG7Design of compact branch-line coupler with coupled resonatorsconference paper10.1109/APMC.2007.45551132-s2.0-51849141315