A Novel and Compact Eight-Port Forward-Wave Directional Coupler With Arbitrary Coupling Level Design Using Four-Mode Control Technology

H.-L. TingS.-K. HsuT.-L. WuTZONG-LIN WU2019-10-242019-10-242017189480https://scholars.lib.ntu.edu.tw/handle/123456789/427813A Novel and Compact Eight-Port Forward-Wave Directional Coupler With Arbitrary Coupling Level Design Using Four-Mode Control Technologyjournal article10.1109/tmtt.2016.26237092-s2.0-84997795012