Title :
SAR assessment and analysis of cumulative body exposure to multi transmitters from a mobile phone
Author :
Mahfouz, Zaher ; Gati, Azeddine ; Lautru, David ; Wiart, Joe ; Hanna, Victor Fouad
Author_Institution :
Div. R&D RESA, France Telecom, Issy-les-Moulineaux, France
Abstract :
This paper presents results for the Specific Absorption Rate (SAR) when using a mobile phone equipped with a multiple antenna system. The SAR is evaluated using the Finite Difference Time Domain (FDTD) method for different configurations taking into account all possible simultaneous transmission from a mobile phone. The considered signals are GSM900, GSM1800, UMTS2100 and WiFi2400. The results show that the calculated local SAR for the different configurations never exceeds the limit of 2 W/Kg recommended by ICNIRP. It was demonstrated also that the maximum of the sum of the SAR evaluated from two different transmitters is always less than the sum of the maximum evaluated ones from each transmitter separately.
Keywords :
biomedical engineering; finite difference time-domain analysis; mobile handsets; transmitters; FDTD method; GSM1800 signals; GSM900 signals; SAR analysis; SAR assessment; UMTS2100 signals; WiFi2400 signals; cumulative body exposure; finite difference time domain method; mobile phone equippment; multiple antenna system; multitransmitters; nonionizing radiation protection; Finite difference methods; Humans; IEEE 802.11 Standards; Mobile handsets; Radio transmitters; Time domain analysis; Multiple exposure; Radiofrequency; SAR;
Conference_Titel :
Biomedical Wireless Technologies, Networks, and Sensing Systems (BioWireleSS), 2012 IEEE Topical Conference on
Conference_Location :
Santa Clara, CA
Print_ISBN :
978-1-4577-1135-0
DOI :
10.1109/BioWireless.2012.6172726
