Assessment of specific absorption rate (SAR) and temperature increases in the human head of portable telephones

Research output: Chapter in Book/Report/Conference proceedingConference contribution

4 Citations (Scopus)

Abstract

The bioheat equation is solved for an anatomically based model of the human head with a resolution of 2.5× 2.5 ×2.5 mm to study the thermal implications of exposure to electromagnetic (EM) fields typical of cellular telephones at 900 MHz. Attention has first been posed on a particular phone model, and a comparison between the absorbed power distribution and steady-state temperature increases has been carried out. The antenna output power was set to be consistent with the portable telephones of 600 mW, maximum SAR values, averaged over 1 gm, from 2.1 to 3.6 W/kg depending on the considered phone. The maximum temperature increases are obtained in the ear and vary from 0.22 C to 0.39 C, while the maximum temperature increases in the brain lie from 0.07 C to 0.17 C. These steady-state temperature increases are obtained after about 48 min of exposure, with a time constant of approximately 6 min. Application of the ANSI/IEEE safety guidelines restricting the 1 gm averaged spatial peak SAR to 1.6 W/kg results in the maximum temperature rise in the brain from 0.07 C to 0.15 C at 900 MHz. Finally, considerations about the exposure limits in the considered frequency are made.

Original languageEnglish
Title of host publication2010 2nd International Congress on Engineering Education: Transforming Engineering Education to Produce Quality Engineers, ICEED2010
Pages185-190
Number of pages6
DOIs
Publication statusPublished - 2010
Event2010 2nd International Congress on Engineering Education: Transforming Engineering Education to Produce Quality Engineers, ICEED2010 - Kuala Lumpur
Duration: 8 Dec 20109 Dec 2010

Other

Other2010 2nd International Congress on Engineering Education: Transforming Engineering Education to Produce Quality Engineers, ICEED2010
CityKuala Lumpur
Period8/12/109/12/10

Fingerprint

Telephone sets
telephone
brain
Brain
Temperature
Cellular telephones
Values
Electromagnetic fields
Antennas
time

Keywords

  • electromagnetic heating
  • finite-difference time-domain (FDTD) method
  • mobile phone
  • specific absorption rate (SAR)
  • temperature increase

ASJC Scopus subject areas

  • Engineering (miscellaneous)
  • Education

Cite this

Faruque, M. R. I., Misran, N., & Islam, M. T. (2010). Assessment of specific absorption rate (SAR) and temperature increases in the human head of portable telephones. In 2010 2nd International Congress on Engineering Education: Transforming Engineering Education to Produce Quality Engineers, ICEED2010 (pp. 185-190). [5940788] https://doi.org/10.1109/ICEED.2010.5940788

Assessment of specific absorption rate (SAR) and temperature increases in the human head of portable telephones. / Faruque, Mohammad Rashed Iqbal; Misran, Norbahiah; Islam, Mohammad Tariqul.

2010 2nd International Congress on Engineering Education: Transforming Engineering Education to Produce Quality Engineers, ICEED2010. 2010. p. 185-190 5940788.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Faruque, MRI, Misran, N & Islam, MT 2010, Assessment of specific absorption rate (SAR) and temperature increases in the human head of portable telephones. in 2010 2nd International Congress on Engineering Education: Transforming Engineering Education to Produce Quality Engineers, ICEED2010., 5940788, pp. 185-190, 2010 2nd International Congress on Engineering Education: Transforming Engineering Education to Produce Quality Engineers, ICEED2010, Kuala Lumpur, 8/12/10. https://doi.org/10.1109/ICEED.2010.5940788
Faruque MRI, Misran N, Islam MT. Assessment of specific absorption rate (SAR) and temperature increases in the human head of portable telephones. In 2010 2nd International Congress on Engineering Education: Transforming Engineering Education to Produce Quality Engineers, ICEED2010. 2010. p. 185-190. 5940788 https://doi.org/10.1109/ICEED.2010.5940788
Faruque, Mohammad Rashed Iqbal ; Misran, Norbahiah ; Islam, Mohammad Tariqul. / Assessment of specific absorption rate (SAR) and temperature increases in the human head of portable telephones. 2010 2nd International Congress on Engineering Education: Transforming Engineering Education to Produce Quality Engineers, ICEED2010. 2010. pp. 185-190
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