DocumentCode :
913488
Title :
Quantification of electromagnetic absorption in humans from body-mounted communication transceivers
Author :
Chatterjee, Indira ; Gu, Yong-Gong ; Gandhi, Om P.
Author_Institution :
University of Utah, Salt Lake City, UT
Volume :
34
Issue :
2
fYear :
1985
fDate :
5/1/1985 12:00:00 AM
Firstpage :
55
Lastpage :
62
Abstract :
The internal electric (E) field and energy deposition in a full-size adult male mannequin in the immediate vicinity of 1.5 W body-mounted communication transceivers have been measured. Transceivers operating at the four frequencies 50, 150, 450, and 800 MHz, and placed at various locations vis-à-vis the body were used. The mannequin was filled with two-thirds muscle-simulant biological phantom mixtures at each of the four frequencies. The complex permittivities (ε*) of these mixtures were confirmed by measurement. The internal E-field distribution was measured by three-dimensional implantable E-field probes. Relatively superficial energy depositions were obtained at points close to the location of the transceiver antenna for the two higher frequencies with energy depositions typically less than 1-2 W/kg. Considerably reduced energy depositions were measured at the two lower frequencies on account of in-depth and wider dissemination of the absorbed energy and the relatively high ε*of the tissues which results in an increased shielding of the body.
Keywords :
Antenna measurements; Electric variables measurement; Electromagnetic measurements; Electromagnetic wave absorption; Energy measurement; Frequency; Humans; Imaging phantoms; Permittivity measurement; Transceivers;
fLanguage :
English
Journal_Title :
Vehicular Technology, IEEE Transactions on
Publisher :
ieee
ISSN :
0018-9545
Type :
jour
DOI :
10.1109/T-VT.1985.24037
Filename :
1623296
Link To Document :
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