A numerical approach for the determination of the tissue equivalent liquid used during SAR assessments

The present paper describes a finite difference time domain-based numerical approach to determine the dielectric properties of the tissue equivalent liquid employed in homogeneous phantoms when testing the specific absorption rate (SAR) compliance of mobile phones. A first numerical simulation perfo...

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Bibliographic Details
Published in:IEEE transactions on magnetics 2002-03, Vol.38 (2), p.745-748
Main Authors: Monebhurrun, V., Dale, C., Bolomey, J.-C., Wiart, J.
Format: Article
Language:English
Subjects:
Applied classical electromagnetism
Assessments
Computer simulation
Dielectric liquids
Dielectrics
Electromagnetic wave propagation, radiowave propagation
Electromagnetism
electron and ion optics
Engineering Sciences
Equivalence
Exact sciences and technology
Finite difference methods
Fundamental areas of phenomenology (including applications)
GSM
Imaging phantoms
Liquids
Magnetic field measurement
Magnetic heads
Magnetism
Mathematical analysis
Mathematical models
Mobile handsets
Numerical simulation
Physics
Specific absorption rate
Synthetic aperture radar
Testing
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Summary:The present paper describes a finite difference time domain-based numerical approach to determine the dielectric properties of the tissue equivalent liquid employed in homogeneous phantoms when testing the specific absorption rate (SAR) compliance of mobile phones. A first numerical simulation performed with a realistic anatomical head model provides the reference averaged SAR value. Several similar simulations are then carried out using a homogeneous head model by varying the dielectric parameters of the tissue equivalent liquid. The desired dielectric parameters of the liquid are derived by matching the maximum averaged SAR with the reference value.
ISSN:0018-9464
1941-0069
DOI:10.1109/20.996193