A Novel Estimation Method of Local Peak SAR for 5G Sub-6GHz Antennas using MIMO-OTA

This study aims to provide a novel estimation method of local peak SAR for 5G sub-6GHz mobile antennas in human vicinity using the concept of MIMO-OTA testing. The correlation between local peak SAR and MIMO channel capacity at various sub-6GHz frequency bands is investigated using numerical approaches. The analytical results show the application range of the proposed method, where the dependence of MIMO antenna performance close to a human head phantom were clarified.