Liou, C.-Y.C.-Y.LiouSHAU-GANG MAO2018-09-102018-09-102016http://www.scopus.com/inward/record.url?eid=2-s2.0-84979628343&partnerID=MN8TOARShttp://scholars.lib.ntu.edu.tw/handle/123456789/396634[SDGs]SDG7Printed spiral metamaterial resonators for ferrite-less wireless powering system with proximal metal platesconference paper10.1109/WPT.2016.7498813