Characterizing radiated power in near field of a phone operating in 3G+ and 4G+ communication standards

Abstract

Overview

In this study, an innovative approach was developed to evaluate the radiated power density close to mobile devices, using a method that integrates both electric and magnetic field strength assessments. This method utilizes the complementary cumulative distribution function (CCDF) for the first time to measure exposure.

Methodology and Findings

• A unique experimental design allowed for detailed measurement of power density dynamics across different user scenarios and communication technologies.
• The study concluded that exposure levels were significantly higher with the 4G+ technology across all applications tested. Notably, activities such as VoIP and video calls showed a higher radiated power density on 4G+ networks compared to 3G+.
• The total near field emitted power was concluded to be 34 times higher for 4G+ applications than for 3G+ applications, indicating an increased risk due to higher exposure.

Conclusion

The findings highlight the need for future evaluations and methodologies focusing on the impact and measurements of exposure arising from different generations of communication technologies, suggesting a necessity to introduce dose rate quantification for better understanding the associated health risks.