Dual-Resonance NFC Antenna System for Mobile Phone with Metal Back Cover

摘要

In this paper, to enhance the performance of NFC antenna, an antenna system that has dual-resonance is proposed for mobile phone with un-broken metal back cover. The antenna is based on a Z-type NFC antenna and the dual-resonance comes from the Z-type antenna itself, the eddy current on the metal back cover and nearby metal ring. The performance of the proposed dual-resonance NFC antenna system is confirmed by measurement.