Investigation of dosimetry in human head model for a helical antenna with mobile phone

Research output: Contribution to journalArticle

13 Citations (Scopus)

Abstract

This paper proposes a dosimetric analysis in realistic human head model for a helical antenna with phone model. The finite-difference time-domain (FDTD) method with lossy-Drude model is adopted in this study. The technique of SAR measurement is addressed and then the effects of head model size on SAR characteristics for a cellular phone exposure at 835 MHz respectively. The head model, was developed from magnetic resonance imaging (MRI) data of an adult head, consists of 630 thousand voxels, of 2 mm dimensions, segmented into 15 tissue types. The helical antenna was modeled as a heap of dipoles and loops with a sufficient relative weight, whose legality was established by comparing the calculated near magnetic fields with published measured data. SAR is given for both the spatial peak value in the whole head and the averages in various major organs.

Original languageEnglish
Pages (from-to)1000-1008
Number of pages9
JournalInternational Journal of Physical Sciences
Volume6
Issue number5
Publication statusPublished - 4 Mar 2011

Fingerprint

helical antennas
Helical antennas
Mobile phones
Dosimetry
dosimeters
Finite difference time domain method
Magnetic resonance
finite difference time domain method
organs
magnetic resonance
Tissue
Magnetic fields
dipoles
Imaging techniques
magnetic fields

Keywords

  • Electromagnetic dosimetry
  • Finite difference time domain method (FDTD)
  • Head size
  • Helical antenna
  • Specific absorption rate (SAR)

ASJC Scopus subject areas

  • Physics and Astronomy(all)
  • Electronic, Optical and Magnetic Materials

Cite this

@article{08412649e0154a7c9dd0548a9cfd3baf,
title = "Investigation of dosimetry in human head model for a helical antenna with mobile phone",
abstract = "This paper proposes a dosimetric analysis in realistic human head model for a helical antenna with phone model. The finite-difference time-domain (FDTD) method with lossy-Drude model is adopted in this study. The technique of SAR measurement is addressed and then the effects of head model size on SAR characteristics for a cellular phone exposure at 835 MHz respectively. The head model, was developed from magnetic resonance imaging (MRI) data of an adult head, consists of 630 thousand voxels, of 2 mm dimensions, segmented into 15 tissue types. The helical antenna was modeled as a heap of dipoles and loops with a sufficient relative weight, whose legality was established by comparing the calculated near magnetic fields with published measured data. SAR is given for both the spatial peak value in the whole head and the averages in various major organs.",
keywords = "Electromagnetic dosimetry, Finite difference time domain method (FDTD), Head size, Helical antenna, Specific absorption rate (SAR)",
author = "Norbahiah Misran and Faruque, {Mohammad Rashed Iqbal} and Islam, {Mohammad Tariqul} and Abidin, {Hafizah Zoinool}",
year = "2011",
month = "3",
day = "4",
language = "English",
volume = "6",
pages = "1000--1008",
journal = "International Journal of Physical Sciences",
issn = "1992-1950",
publisher = "Academic Journals",
number = "5",

}

TY - JOUR

T1 - Investigation of dosimetry in human head model for a helical antenna with mobile phone

AU - Misran, Norbahiah

AU - Faruque, Mohammad Rashed Iqbal

AU - Islam, Mohammad Tariqul

AU - Abidin, Hafizah Zoinool

PY - 2011/3/4

Y1 - 2011/3/4

N2 - This paper proposes a dosimetric analysis in realistic human head model for a helical antenna with phone model. The finite-difference time-domain (FDTD) method with lossy-Drude model is adopted in this study. The technique of SAR measurement is addressed and then the effects of head model size on SAR characteristics for a cellular phone exposure at 835 MHz respectively. The head model, was developed from magnetic resonance imaging (MRI) data of an adult head, consists of 630 thousand voxels, of 2 mm dimensions, segmented into 15 tissue types. The helical antenna was modeled as a heap of dipoles and loops with a sufficient relative weight, whose legality was established by comparing the calculated near magnetic fields with published measured data. SAR is given for both the spatial peak value in the whole head and the averages in various major organs.

AB - This paper proposes a dosimetric analysis in realistic human head model for a helical antenna with phone model. The finite-difference time-domain (FDTD) method with lossy-Drude model is adopted in this study. The technique of SAR measurement is addressed and then the effects of head model size on SAR characteristics for a cellular phone exposure at 835 MHz respectively. The head model, was developed from magnetic resonance imaging (MRI) data of an adult head, consists of 630 thousand voxels, of 2 mm dimensions, segmented into 15 tissue types. The helical antenna was modeled as a heap of dipoles and loops with a sufficient relative weight, whose legality was established by comparing the calculated near magnetic fields with published measured data. SAR is given for both the spatial peak value in the whole head and the averages in various major organs.

KW - Electromagnetic dosimetry

KW - Finite difference time domain method (FDTD)

KW - Head size

KW - Helical antenna

KW - Specific absorption rate (SAR)

UR - http://www.scopus.com/inward/record.url?scp=79956223040&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=79956223040&partnerID=8YFLogxK

M3 - Article

VL - 6

SP - 1000

EP - 1008

JO - International Journal of Physical Sciences

JF - International Journal of Physical Sciences

SN - 1992-1950

IS - 5

ER -