Electromagnetic absorption in the human head and neck for mobile telephones at 835 and 1900 MHz

Publication Type Journal Article
School or College College of Engineering
Department Electrical & Computer Engineering
Creator Furse, Cynthia M.; Gandhi, Om P.; Lazzi, Gianluca
Title Electromagnetic absorption in the human head and neck for mobile telephones at 835 and 1900 MHz
Date 1996-01-01
Description We have used the finite-difference time-domain method and a new millimeter-resolution anatomically based model of the human to study electromagnetic energy coupled to the head due to mobile telephones at 835 and 1900 MHz. Assuming reduced dimensions characteristic of today's mobile telephones, we have obtained SAR distributions for two different lengths of monopole antennas of lengths λ / 4 and 3λ/8 for a model of the adult male and reduced-scale models of 10- and 5-year-old children and find that peak one-voxel and 1-g SAR's are larger for the smaller models of children, particularly at 835 MHz. Also, a larger in-depth penetration of absorbed energy for these smaller models is obtained. We have also studied the effect of using the widely disparate tissue properties reported in the literature and of using homogeneous instead of the anatomically realistic heterogeneous models on the SAR distributions. Homogeneous models are shown to grossly overestimate both the peak 1-voxel and 1-g SAR's. Last, we show that it is possible to use truncated one-half or one-third models of the human head with negligible errors in the calculated SAR distributions. This simplification will allow considerable savings in computer memory and computation times.
Type Text
Publisher Institute of Electrical and Electronics Engineers (IEEE)
Journal Title IEEE Transactions on Microwave Theory and Techniques
Volume 44
Issue 10
First Page 1884
Last Page 97
Subject Electromagnetic absorption; FDTD; Finite-difference time-domain; Specific absorption rates; SAR
Subject LCSH Cell phones; Radiation dosimetry; Head -- Effect of radiation on; Neck -- Effect of radiation on
Language eng
Bibliographic Citation Gandhi, O. P., Lazzi, G., & Furse, C. M. (1996). Electromagnetic absorption in the human head and neck for mobile telephones at 835 and 1900 MHz. IEEE Transactions on Microwave Theory and Techniques, 44(10), 1884-97. Oct.
Rights Management (c)1996 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.
Format Medium application/pdf
Format Extent 1,670,910 bytes
Identifier ir-main,14118
ARK ark:/87278/s6b57307
Setname ir_uspace
Date Created 2012-06-13
Date Modified 2012-06-13
ID 703995
Reference URL https://collections.lib.utah.edu/details?id=703995
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