Electromagnetic Uncertainty Analysis of 3D Biological Phantoms

Cellphone and other wireless device electromagnetic (EM) radiation assessments are needed to approve the use of those devices near human bodies. Approval of such devices near a human body requires them to meet power deposition/specific absorption rate (SAR) standards. Current standards and guidelines do not account for variations in tissue properties and size. Most electromagnetic analyses of biological models are performed using the finite-difference time-domain (FDTD) method [Tafllove et al.]. Variations in tissue properties and size may be accounted for in these models using uncertainty analysis. Monte Carlo FDTD (MC FDTD) is one such method that requires numerous FDTD runs based on variational statistics to provide mean and standard deviation SAR metrics. For uncertainty analysis, the MC method is considered the gold standard even though it is computationally very expensive.