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Specific absorption rate (SAR) in models of the human head exposed to hand‐held UHF portable radios
Author(s) -
Cleveland Robert F.,
Athey T. Whit
Publication year - 1989
Publication title -
bioelectromagnetics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.435
H-Index - 81
eISSN - 1521-186X
pISSN - 0197-8462
DOI - 10.1002/bem.2250100206
Subject(s) - specific absorption rate , ultra high frequency , head (geology) , human head , absorption (acoustics) , antenna (radio) , acoustics , transceiver , isotropy , physics , optics , environmental science , telecommunications , electrical engineering , computer science , wireless , engineering , geology , geomorphology
Specific absorption rate (SAR) was measured in models of the human head exposed to hand‐held portable radios (“transceivers”) transmitting at frequencies in the 800‐MHz band. An isotropic implantable electric‐field probe was used to measure internal fields induced in the head models, and SARs were determined by calculation. As well as determining representative values and distributions for SARs under various conditions, it was shown that antenna type and orientation with respect to the head are important factors affecting energy absorption.