A novel mobile phone antenna for effectively reducing specific absorption rate

Authors: He Y, Liang K, Li J, Abbasi QH

Year: 10 December 2018

Category: Antenna Engineering

Journal: 12th European Conference on Antennas and Propagation (EuCAP 2018)

Institution: IEEE

DOI: 10.1049/cp.2018.1234

URL: https://ieeexplore.ieee.org/document/8568912

Abstract

Overview

In this paper, a novel mobile phone antenna is proposed to reduce the harmful effects of electromagnetic radiation on the human body. The study focuses on an inverted F-shaped antenna (IFA) designed specifically to lower the specific absorption rate (SAR) during phone usage.

Findings

  • The design shows excellent electrical characteristics like reflection coefficient coverage from 700-870 MHz and 1710-2450 MHz.
  • The antenna has demonstrated a low SAR value (< 1.4 W/kg), showcasing a significant reduction in human exposure to harmful radiation.
  • Measured results include total radiation power (TRP >17.5 dBm), which are key indicators of the antenna's efficiency.
  • Additional features include stable TRP (17.5-19.4 dBm), with the potential to introduce a new frequency band (LTE band 30) which aids in dispersing current peak for even lower SAR values (0.4-1.38 W/kg).

Conclusion

The antenna's compact structure, low cost, and good stability make it an excellent candidate for future mobile phone applications aimed at reducing SAR, thus mitigating the long-term health risks associated with electromagnetic radiation exposure.

antenna design electromagnetic radiation mobile phone SAR reduction human health
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