Use of the finite-difference time-domain method for calculating EM absorption in man models

Author

Sullivan, Dennis M. ; Gandhi, Om P. ; Taflove, Allen

Author_Institution

Utah Univ., Salt Lake City, UT, USA

Volume

35

Issue

3

fYear

1988

fDate

3/1/1988 12:00:00 AM

Firstpage

179

Lastpage

186

Abstract

The finite-difference time-domain method is used to calculate the specific absorption rate (SAR) within the human body. SAR distributions are calculated using incident frequencies of 100 MHz and 350 MHz for three different cases: (1) a homogeneous man model in free space; (2) an inhomogeneous man model in free space; and (3) an inhomogeneous man model standing on a ground plane. These various cases are used to evaluate the advantage of inhomogeneous models over homogeneous models, and grounded models versus free space models. Comparison is made between the results obtained here and those obtained using the method of moments.

Keywords

biophysics; electromagnetic wave absorption; physiological models; 100 MHz; 350 MHz; EM absorption calculation; finite-difference time-domain method; free space models; grounded models; homogeneous models; human body; inhomogeneous models; man models; method of moments; Biological system modeling; Finite difference methods; Frequency; Humans; Maxwell equations; Message-oriented middleware; Moment methods; Specific absorption rate; Time domain analysis; Torso; Absorption; Body Composition; Electric Conductivity; Electromagnetic Fields; Electromagnetics; Humans; Methods; Models, Theoretical;

fLanguage

English

Journal_Title

Biomedical Engineering, IEEE Transactions on

Publisher

ieee

ISSN

0018-9294

Type

jour

DOI

10.1109/10.1360

Filename

1360