Reduction of 5G cellular network radiation in wireless mobile phone using an asymmetric square shaped passive metamaterial design

Abstract

Overview

This study explores the use of metamaterials to decrease the absorption of 5G electromagnetic energy within human head tissue. The urgency for this research is amplified with the widespread rollout of 5G technology, which involves increased radiation emissions from wireless devices.

Methodology

The research utilizes a novel square-shaped metamaterial (SM) design placed on FR-4 substrate material with a 1.6 mm thickness. The electromagnetic properties and Specific Absorption Rate (SAR) were analyzed using a high-performance 3D EM analysis tool, CST software. Experimental validation was achieved by fabricating the metamaterial design and carrying out measurements.

Findings

• Quadruple resonance frequencies were successfully achieved at various GHz bands. There was a minor discrepancy between the numerically simulated and experimental data.
• The SAR analysis highlighted significant reduction effects at 3.794 GHz with a reduction up to 70.33% for larger tissue volumes.

Conclusion

The square-shaped metamaterial design shows promise in reducing electromagnetic exposure from 5G networks, presenting a significant advancement in protective measures for human health against RF radiation.