A NOVEL DIELECTRIC CONFORMAL FDTD METHOD FOR COMPUTING SAR DISTRIBUTION OF THE HUMAN BODY IN A METALLIC CABIN ILLUMINATED BY AN INTENTIONAL ELECTROMAGNETIC PULSE (IEMP)

One novel dielectric conformal finite-difference time-domain (FDTD) method is used for computing specific absorption rate (SAR) distribution over the human body model in one metallic cabin with some windows on its wall. It is based on the concept of area average, which is different from other tradit...

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Bibliographic Details
Published inElectromagnetic waves (Cambridge, Mass.) Vol. 126; pp. 355 - 373
Main Authors Kong, L.-Y, Wang, J, Yin, W.-Y
Format Journal Article
LanguageEnglish
Published Cambridge Electromagnetics Academy 01.01.2012
Subjects
Electric waves
Electromagnetic radiation
Electromagnetic waves
Electrophysiology
Health aspects
Time-domain analysis
China
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Summary:One novel dielectric conformal finite-difference time-domain (FDTD) method is used for computing specific absorption rate (SAR) distribution over the human body model in one metallic cabin with some windows on its wall. It is based on the concept of area average, which is different from other traditional conformal FDTD schemes. Our developed algorithm is verified by calculating both point and average SARs of dielectric sphere and human head models illuminated by an intentional electromagnetic pulse (IEMP), respectively, and CST Microwave Studio (MWS) also used for validating its accuracy. Numerical calculations are further performed to show the average SAR distribution over the human body model for different IEMP incidences, where the cabin door is opened or closed. The effects of E-field amplitude, direction and polarization of the incident IEMP on the SAR distributions are characterized in detail. This study will be useful for further electromagnetic protection for some persons working in high power exposure environment.
ISSN:1559-8985
1070-4698
1559-8985
DOI:10.2528/PIER11112702