Summary

International Symposium on Antennas and Propagation

2013

Session Number:FP-1(A)

Session:

Number:FP-1(A)-4

Material Property of On-metal Magnetic Sheet Attached on NFC/HF-RFID Antenna and Research of Its Proper Pattern and Size On

Naoki OHMURA,  Eriko TAKASE,  Satoshi OGINO,  Yoshinobu OKANO,  Syhota ARAI,  

pp.-

Publication Date:2013/10/22

Online ISSN:2188-5079

DOI:10.34385/proc.54.FP-1(A)-4

PDF download (305KB)

Summary:
When a payment system with NFC/HF-RFID is installed in smart-phone, their communication with 13.56MHz is blocked by such metal as battery, coil and PCB. To solve this problem, magnetic sheet with high permeability is set between NFC/HF-RFID antenna and near-by metal. So far thin compound magnetic sheet or thin sintered ferrite has been used. In order to make thickness of these materials thinner, we propose amorphous magnetic sheet. Besides this amorphous magnetic sheet causes to increase the transmission effect.