An Extremely Safe Low-SAR Antenna with Study of Its Electromagnetic Biological Effects on Human Head

Authors: Nazeri A, Abdolali A, Mehdi M

Year: May 17, 2019

Category: Telecommunications Engineering

Journal: Wireless Personal Communications

DOI: 10.1007/s11277-019-06621-6

URL: https://link.springer.com/article/10.1007/s11277-019-06621-6

Abstract

Abstract Overview

In this study, a novel low-Specific Absorption Rate (SAR) antenna is introduced, designed to ensure safe communication across all usage scenarios. The design includes a Microstrip patch antenna and a metallic casing loop, key to reducing SAR levels.

Key Findings

  • The antenna operates at two frequencies, 0.9 GHz and 2.4 GHz, with respective SAR values of 0.52 W/kg and 0.25 W/kg measured at the human head.
  • Experiments evaluated the safety of the antenna when worn with metallic earrings of various sizes, considering the impact on SAR distribution.
  • Further investigations were made into the effects of antenna orientation and rotation on SAR values.

Conclusive Insights

Modifications like changing antenna position or using different-sized earrings substantially influence SAR values. Despite these changes, the SAR values remain within safe limits, confirming the antenna's suitability for widespread telecommunication usage.

low-SAR antenna electromagnetic biological effects SAR reduction telecommunication human head
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