Analysis of the influence of the position of the mobile on SAR induced using polynomial chaos decomposition

The numerical analysis of the uncertainty of the Specific Absorption Rate (SAR) induced by a mobile phone requests large number of simulations. Today the FDTD is still time consuming even if large efforts have been to improve it. In order to overcome these difficulties, statistical process has been introduced to develop a metamodel technique which parameterizes the SAR 10g. The appropriate stochastic metamodel and the PC coefficients are estimated by ordinary least-square regression. This recent metamodelling technique appears to be a relevant approach in order to reduce the number of model´s evaluations.