Title :
Measurement of localized specific absorption rate (SAR) for contactless smartcard readers operating in the HF band
Author :
Kanda, Michael ; McCoy, Danny O. ; Schamberger, Mark A. ; Balzano, Quirino
Author_Institution :
Motorola Inc., Fort Lauderdale, FL, USA
fDate :
11/1/1998 12:00:00 AM
Abstract :
This paper explores highly sensitive localized SAR measurement methods for contactless smartcard readers operating in the HF band, specifically 13.56 MHz. The design and calibration of a low-frequency E-field probe is described. A method for synthesizing simulated human tissue using a technique developed for measurement of the conductivity of liquids at the HF band is also presented. Finally, both the near-field and localized specific absorption rates are measured for a contactless smartcard reader and compliance with Federal Communications Commission (FCC) maximum permissible exposure (MPE) and specific absorption rate (SAR) regulation is determined
Keywords :
biological effects of fields; biological techniques; biological tissues; calibration; electric field measurement; health hazards; probes; smart cards; 13.56 MHz; FCC; Federal Communications Commission; HF band; SAR measurement; SAR regulation; calibration; contactless smartcard readers; liquids conductivity measurement; localized specific absorption rate; low-frequency E-field probe; maximum permissible exposure; near-field; simulated human tissue synthesis; Calibration; Conductivity measurement; Credit cards; Electromagnetic measurements; FCC; Humans; Probes; Radio frequency; Specific absorption rate; Telephony;
Journal_Title :
Electromagnetic Compatibility, IEEE Transactions on
