NDLI: Induced Current Calculation in Detailed 3-D Adult and Child Model for the Wireless Power Transfer Frequency Range

Content Provider	IEEE Xplore Digital Library
Author	Hye-Jin Song Hansu Shin Hyang-Beom Lee Jae-Hun Yoon Jin-Kyu Byun
Copyright Year	1965
Abstract	Induced current density in the human body is the basic restriction of the electromagnetic field protection guidelines for frequencies . Due to the difficulty of measurement, numerical methods are often used for assessment of basic restrictions. In this paper, induced current distributions are calculated in the high-resolution 3-D adult and child models exposed to magnetic fields between 100 kHz and 10 MHz, which is the frequency range of the resonant wireless power transfer (WPT) systems. For this frequency range, it is difficult to apply the conventional finite-difference time-domain (FDTD) method for bioelectric field computation. Thus, the quasi-static FDTD method is used to reduce the number of time steps. The results are analyzed according to different human models, grounding conditions, organs, frequencies, and orientations of the incident magnetic field. In addition, the plane wave exposure is compared with exposure to magnetic field of transmit coil of WPT system. Using the calculation results, the feasibility of the magnetic field reference level in the International Commission on Non-Ionizing Radiation Protection guideline is analyzed.
Sponsorship	IEEE Magnetics Society
Starting Page	1041
Ending Page	1044
Page Count	4
File Size	1162461
File Format	PDF
ISSN	00189464
Volume Number	50
Issue Number	2
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2014-01-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Magnetic domains Biological system modeling Magnetic resonance Coils Guidelines Finite difference methods Magnetic resonance imaging wireless power transfer (WPT) Bioelectric phenomena dosimetry finite difference methods
Content Type	Text
Resource Type	Article
Subject	Electronic, Optical and Magnetic Materials Electrical and Electronic Engineering

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