Electromagnetic field exposure to human head model with various metal objects at sub-6 GHz frequencies

Abstract

Overview

The study investigates the interactions of metal objects like spectacles, dental implants, and earrings within the human body when exposed to electromagnetic fields from devices operating at sub-6 GHz 5G frequencies.

Findings

• Utilization of a realistic human head model for numeric calculations and analysis focused on non-ionizing dosimetry.
• Employment of finite integration technique (FIT) based commercial software to simulate frequencies ranging from 0.9 to 5 GHz.
• The specific absorption rate (SAR) and electric field strength were primarily quantified, noting a maximum SAR of 14 × 10-5 W/kg at 2.45 GHz and highest electric strength of 0.52 V/m at 1.8 GHz.

Conclusion

Results indicate that metal objects can not only increase SAR values for external biological tissues but also act as partial shields for deeper tissues. Importantly, these values are still below the safety limits set by international bodies, suggesting potential concerns over prolonged exposure and existing safety standards.