Abstract

Overview

The study focuses on the impact of electromagnetic fields from devices operating at 5G frequencies on human body parts containing metal objects such as metal-framed spectacles and metallic implants.

Methods

Using finite integration technique (FIT) based commercial software, simulations were conducted at frequencies of 0.9 GHz to 5 GHz on a realistic human head model embedded with metal objects. The specific absorption rate (SAR) was meticulously calculated to assess the potential electromagnetic energy absorption by the human body.

Findings

• The SAR reached a maximum of 14 × 10-5 W/kg for a 10g average tissue segment at 2.45 GHz in the model including earrings.
• The highest electric field strength recorded was 0.52 V/m at 1.8 GHz in a model furnished with various metal objects.
• Metal objects in the human head can lead to increased SAR values in external biological tissues and potentially act as a shield for deeper tissues.

Conclusion

The presence of metal objects in proximity to the head increases exposure values, which can be a concern, though noted values were beneath international safety limits. These findings suggest a significant interaction between metal objects and electromagnetic fields, potentially impacting health, highlighting the need for continuous monitoring and assessment of these interactions under various routine conditions.