A fast method for real-time SAR computation in homogeneous virtual models in the HF to the low-UHF bands

In this study, we explore the feasibility of leveraging the limited Degrees of Freedom (DOFs) required to accurately describe fields within scattering homogeneous virtual models to develop a fast algorithm for computing the induced E-field and evaluating the specific absorption rate (SAR) in both the far-field and radiative near-field regimes of an arbitrary source, given its Plane Wave Expansion (PWE). If source data for a complex system is available-along with its position and orientation relative to the scattering object-this method could facilitate real-time numerical dosimetry, particularly in the HF to low-UHF frequency bands.