Design analysis of ferrite sheet attachment for sar reduction in human head

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Abstract

In this paper, reducing Specific Absorption Rate (SAR) with ferrite sheet attachment is investigated. The finite-difference time-domain method with Lossy-Drude model is adopted in this study. The methodology of SAR reduction is addressed and then the effects of attaching location, distance, size and material properties of ferrite sheet on the SAR reduction are investigated. Computational results show that the SAR averaging over 10gm was better than that for 1gm and SAR reduction of 57.75% is achieved for SAR 10gm. These results show the way to choose a ferrite sheet with the maximum SAR reducing effect for phone model.

Original languageEnglish
Pages (from-to)191-205
Number of pages15
JournalProgress in Electromagnetics Research
Volume98
Publication statusPublished - 2009

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design analysis
attachment
Ferrite
ferrites
Finite difference time domain method
Materials properties
finite difference time domain method
methodology

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Radiation
  • Electrical and Electronic Engineering

Cite this

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abstract = "In this paper, reducing Specific Absorption Rate (SAR) with ferrite sheet attachment is investigated. The finite-difference time-domain method with Lossy-Drude model is adopted in this study. The methodology of SAR reduction is addressed and then the effects of attaching location, distance, size and material properties of ferrite sheet on the SAR reduction are investigated. Computational results show that the SAR averaging over 10gm was better than that for 1gm and SAR reduction of 57.75{\%} is achieved for SAR 10gm. These results show the way to choose a ferrite sheet with the maximum SAR reducing effect for phone model.",
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AB - In this paper, reducing Specific Absorption Rate (SAR) with ferrite sheet attachment is investigated. The finite-difference time-domain method with Lossy-Drude model is adopted in this study. The methodology of SAR reduction is addressed and then the effects of attaching location, distance, size and material properties of ferrite sheet on the SAR reduction are investigated. Computational results show that the SAR averaging over 10gm was better than that for 1gm and SAR reduction of 57.75% is achieved for SAR 10gm. These results show the way to choose a ferrite sheet with the maximum SAR reducing effect for phone model.

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