Incident Power Density Assessment Study for 5G Millimeter-Wave Handset Based on Equivalent Currents Method

When placed on the market, mobile handsets are required to comply with relevant electromagnetic field (EMF) exposure limits. In the millimeter-wave (mmWave) frequency band, human exposure to EMF needs to be evaluated in terms of incident power density (PD). In this work, the equivalent currents (EQC) method is applied to assess the PD of a 5G mmWave mobile handset mock-up. The PDs in the near field (NF) region are obtained using the field data measured in the intermediate field (IF) region with an MVG mmWave spherical measurement system. The results are compared with those obtained by simulations and also with those obtained by reference NF scanning measurements. The agreement between the methods indicates that the EQC method is a promising candidate for the PD assessment of 5G mmWave handsets.