RF exposure assessments near reflecting surfaces

This study quantifies the impact of plane wave reflections from various surfaces on RF exposure assessments, considering both measurements and calculations.TE and TM modes are analyzed across different incident angles and frequencies.Reflecting surfaces, including PEC and medium dry ground, are examined for their influence on exposure levels.Results show that common RF dosimetric practices used in Australia including direct ray-based calculations of RF exposure near the ground and reflecting walls, as well as single point measurements of E-field above ground can substantially underestimate actual exposure by failing to account for reflected field effects.