Power Density and SAR in Multi-Layered Life Tissue at Global System Mobile (GSM) Frequencies

Wasife, Khitam El

doi:10.4236/jemaa.2011.38052

Cited by 4 publications

(2 citation statements)

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“…Among the various techniques employed in computational electrodynamics, the finite-difference timedomain (FDTD) method stands out as a reliable approach for modeling and solving such problems. By utilizing FDTD, researchers can obtain a detailed understanding of the electromagnetic behavior of biological tissues, which can be crucial in the development of safer and more efficient wireless communication technologies [6,10,16,17,21,23].…”

Section: -Mathematical Methodmentioning

confidence: 99%

“…Many researchers have studied the effect of radio rays emitted by the antenna used in mobile phones on different human tissues in various ways [1] [2], including the FDTD method [16] [17] [18] [19] [20] [21]. In this research increasing SAR values by increasing the exposure period to the frequencies of 0.9 GHz and 1.8 GHz that emit from PIFA and planar monopole antenna for the multilayered model of the Human eye was discussed.…”

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confidence: 99%

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Specific Absorption Rate in Human Eye Model Exposed to Mobile Phone Radiation: A FDTD Study

Shadidi,

Falih,

Muslim

2024

Preprint

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It is imperative to recognize that extended exposure to radiofrequency (RF) waves can significantly affect the specific absorption rate (SAR) values in human eye tissues. In this study, we calculated the SAR values for the multilayered models of the Human Head and the Human Eye through various exposure periods (30 min, 45 min, 1 hour, 1.5 hours, 2 h) at frequencies of 0.9 GHz and 1.8 GHz emitted from mobile phones antennas using MATLAB and the Finite Difference Time Doman (FDTD) method. The results indicate that increasing the exposure period of RF waves, results in elevated SAR values in the human eye tissues. Specifically, the Cornea in the Human Eye model experiences a drastic increase in SAR value to 19.44 W/kg after just 1.5 hours of exposure at a frequency of 0.9 GHz, which is a high value due to the increasing exposure period and interference. This significant increase in the SAR value presents a notable threat to one's health, as it is vulnerable to the constructive interference of electric waves from the antenna, which can amplify its strength. This is particularly crucial when prolonged exposure is considered. In light of these findings, it is imperative to prioritize safety and take all necessary measures to limit exposure to RF waves.

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Section: -Mathematical Methodmentioning

confidence: 99%

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confidence: 99%