A novel 3-dB directional coupler with broad bandwidth and compact size using composite right/left-handed coplanar waveguides

Mao, S.-G.S.-G.MaoWu, M.-S.M.-S.WuSHAU-GANG MAO2018-09-102018-09-102007http://www.scopus.com/inward/record.url?eid=2-s2.0-34247584179&partnerID=MN8TOARShttp://scholars.lib.ntu.edu.tw/handle/123456789/332412A novel 3-dB directional coupler with broad bandwidth and compact size using composite right/left-handed coplanar waveguidesjournal article10.1109/LMWC.2007.895694