Media type: E-Article Title: A Quad-Antenna System for 4G/5G/GPS Metal Frame Mobile Phones Contributor: Huang, Daiwei; Du, Zhengwei; Wang, Yan Published: Institute of Electrical and Electronics Engineers (IEEE), 2019 Published in: IEEE Antennas and Wireless Propagation Letters, 18 (2019) 8, Seite 1586-1590 Language: Not determined DOI: 10.1109/lawp.2019.2924322 ISSN: 1536-1225; 1548-5757 Origination: Footnote: