PurposeThe purpose of this paper is to determine the impact of human age on the distribution of electric field and absorbed energy that originates from a mobile phone.Design/methodology/approachThis research was performed for frequencies of 900, 1800 and 2100 MHz, which are used in a mobile communication system. To obtain the most accurate results, 3 D realistic model of the child’s head has been created whereby the dimensions of this model correspond to the dimensions of a seven-year-old child. Distribution of the electric field and specific absorption rate (SAR) through the child’s head was obtained by numerical analysis based on the finite integration technique.FindingsThe results discover that amount of absorbed energy is greater in the surface layers of the child’s head model when the electromagnetic (EM) characteristics of tissues are adjusted for the child. This deviation corresponds to different EM characteristics of biological tissues and organs of an adult person compared to a child.Research limitations/implicationsThe study deals with penetrated electrical field and absorbed EM field energy. There is space for further studies of other EM field effects (e.g. thermal effects).Practical implicationsThe analysis of obtained results leads to idea that mobile phones and devices aimed for children using should be modified to provide SAR values inside prescribed standards.Social implicationsThe obtained results are foundation for future research on influence of EM fields of mobile devices on human health.Originality/valueThe proposed procedure offers the model for accurate estimation and quality analysis of SAR and EM field distribution inside child head tissue.
COMPEL: Theinternational Journal for Computation and Mathematics in Electrical and Electronic Engineering – Emerald Publishing
Published: Sep 2, 2019
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