Abstract

Overview

A multi-band body-worn distributed exposure meter (BWDM) has been developed specifically for use in diffuse indoor environments. This device is crucial for accurately understanding and assessing personal exposure to radio-frequency radiation, which is becoming increasingly important given the widespread use of telecommunications devices.

Design and Calibration

• Features 22 nodes distributed across the torso.
• Capable of measuring the incident power density on the body across 11 telecommunication bands ranging from 790-5513 MHz.

Validation and Results

The calibration protocol designed for the BWDM allows for its general application across similar wearable personal exposure meters. Five indoor locations and five frequency bands were tested, showing excellent agreement between the measurements of the BWDM and standard measurement tools, with a maximum difference in total exposure across tested areas being a negligible 0.9 dB.

Conclusion

The device's low measurement uncertainty and its agreement with standard tools underscore its validity and effectiveness. This meter represents a significant step forward in personal dosimetry assessments in environments with diffuse electromagnetic fields.