Abstract
Abstract Currently, mMIMO (massive Multiple Input Multiple Output) antennas with beamforming are primarily used in 5G NR (New Radio) in the sub-6 GHz range at 3.5 GHz (Frequency Range 1, FR1). The assessment of the theoretical or actual maximum of human exposure to RF field strength or power density according to international standard IEC 62232:2022 is significantly more difficult at base stations (BSs) with beamforming technology than with conventional antenna technologies. This study compares different measurement and exposure evaluation methods from IEC 62232:2022 with in-situ measurements. A case study, developed for the IEC TR 62669 Ed. 3 originally included an analysis of exposure levels at 4 measurement points (A, B, C and D) in the surroundings of three 5G NR BSs, whereas this study includes analysis from both the original and one additional measurement point (E).
Published Version
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