Abstract

Overview

A detailed dosimetry study on electromagnetic absorption and temperature rises under actual usage scenarios is provided, focusing on the effects when a mobile phone is used inside an elevator cabin.

Model and Methodology

The study employed numerically accurate human models which specifically include a 7th month pregnant woman and a 5-year-old female child, with the latter acting as the mobile phone user.

Testing Parameters

• The mobile phone was modeled in three talk positions: parallel, tilt, and cheek.
• The phone's operational frequencies were set at 1000 MHz and 1800 MHz.

Findings

Significant findings from the specific absorption rate (SAR) and temperature assessments indicated:

• Child's Exposure: The child's RF exposure varies greatly with changes in the phone's position and is less influenced by their relative positioning to the pregnant woman model.
• Pregnant Woman's Exposure: In contrast, the fetal model and pregnancy were more sensitive to their relative positioning than the phone's position.

These assessments were conducted entirely within a metallic elevator cabin, providing insights into the confined electromagnetic field exposure scenarios.

Conclusion

The dosimetry study presents vital implications for child and prenatal electromagnetic field safety concerning mobile phone usage in confined spaces like elevators.