Kuo, L.-R.L.-R.KuoHSI-TSENG CHOU2018-09-102018-09-102007http://www.scopus.com/inward/record.url?eid=2-s2.0-48349110267&partnerID=MN8TOARShttp://scholars.lib.ntu.edu.tw/handle/123456789/332358[SDGs]SDG7A printed helix-type antenna array for wireless communications at high frequenciesconference paper10.1109/APS.2007.4396525