Propagation Loss Characteristics Considering Human Body Shadowing in Local 5G Frequency Band Using Parallel FDTD Analysis

This study focuses on propagation characteristics of local-5G frequency bands, including the human body shadowing in indoor environments. We modeled an indoor propagation environment assuming a small conference room containing humans and evaluated the propagation loss characteristics using a large-scale 3D numerical analysis based upon the FDTD method. The electric field distribution in the conference room is excited by a 4.7 GHz transmitting antenna, which is used as the local-5G access point, was calculated, and the propagation characteristics with and without the human bodies were compared. Shadowing and scattering effects due to multiple precise, realistic human bodies in standing and sitting postures were evaluated in the full-wave simulations.