Electromagnetic (EM) absorption reduction in a muscle cube with metamaterial attachment

Abstract The purpose of this paper is to calculate the specific absorption rate (SAR) reduction in a muscle cube with metamaterial attachment. The finite-difference time-domain (FDTD) method has been used to evaluate the SAR in a realistic anatomically based model of the muscle cube. In this paper,...

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Bibliographic Details
Published in:Medical engineering & physics 2011-06, Vol.33 (5), p.646-652
Main Authors: Faruque, M.R.I, Islam, M.T, Misran, N
Format: Article
Language:English
Subjects:
Absorption
Antenna
Antennas
Applied sciences
Electromagnetic Fields
Engineering
Exact sciences and technology
Face
Humans
Metamaterial
Muscle cube
Muscles - cytology
Muscles - metabolism
Muscles - radiation effects
Permeability - radiation effects
Phantoms, Imaging
Radiocommunications
Radiology
SAR
Skin
SRRs
Telecommunications
Telecommunications and information theory
Time Factors
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Summary:Abstract The purpose of this paper is to calculate the specific absorption rate (SAR) reduction in a muscle cube with metamaterial attachment. The finite-difference time-domain (FDTD) method has been used to evaluate the SAR in a realistic anatomically based model of the muscle cube. In this paper, we have designed the single-negative metamaterials from a periodic arrangement of split ring resonators (SRRs). By properly designing the structural parameter of the SRRs, the effective medium parameter can be tuned negative at the 900 MHz and 1800 MHz bands. Numerical results concerning the SAR values in the muscle cube in the presence of resonators exhibit significant SAR reduction. These results can provide useful information when designing safety-compliant mobile communication equipment.
ISSN:1350-4533
1873-4030
DOI:10.1016/j.medengphy.2010.12.004