Abstract

Abstract Summary

Overview

The study assesses the dangers of electromagnetic radiation from mobile phones and explores a novel approach to mitigate these risks using metamaterials (MTM). With the increasing prevalence of high-frequency devices, the potential health impacts are significant. This research delves into specific absorption rate (SAR) reduction facilitated by an innovative MTM design.

Findings

• A novel Electric Inductor Capacitor (ELC) resonator-based MTM has been developed to lower SAR in human heads during mobile phone usage.
• The study tests SAR levels during three typical smartphone uses: voice calling, messaging, and video calling.
• Simulation results reveal that MTM can effectively reduce SAR, thus potentially protecting users from harmful radiation.
• Investigations highlight the risk even at negligible increases in tissue temperature and the direct relation between decreased distance from the device and enhanced tissue absorption.

Methodology

Using a high-frequency electromagnetic simulator, the research evaluates SAR impacts on a modeled human head involving different smartphone usage scenarios. Measurements for SAR were executed for GSM 900 MHz and 1800 MHz frequency bands.

Conclusion

This paper confirms that using ELC resonator-based metamaterials between the smartphone's radiating elements and the user's head can decrease radiation exposure significantly. The findings stress the importance of maintaining sufficient distance between mobile phones and the human body to minimize health risks.