A Broadband Forward-Wave Directional Coupler Using Periodic Y-Shaped Ground Via Structures With Arbitrary Coupling Levels

J.-C. YenS.-K. HsuT.-H. LinTZONG-LIN WU2018-09-102018-09-102013-01http://scholars.lib.ntu.edu.tw/handle/123456789/381548A Broadband Forward-Wave Directional Coupler Using Periodic Y-Shaped Ground Via Structures With Arbitrary Coupling Levelsjournal article10.1109/TMTT.2012.22277782-s2.0-84872835092WOS:000313940300004