Comparative Study of Ferrite and Amorphous Shielding Materials for NFC Tag Antenna on Metal

This paper compares ferrite and amorphous sheets as shielding materials for NFC tag antennas on metal surfaces. The presence of metal surface poses challenges to NFC communication, impacting the reading of the tag. Effective shielding materials are necessary to mitigate these challenges. Experimental evaluations are conducted to assess the performance of the NFC tag antenna in terms of signal strength, inductance, and reading range in the presence of ferrite and amorphous materials. The results demonstrate significant enhancements in signal strength when utilizing ferrite material compared to amorphous material. However, amorphous materials offer the advantage of lower thickness, enabling broader application possibilities.