A method for estimating a whole-body Specific Absorption Rate (SAR) caused in a body by electromagnetic fields emitted by a wireless communication device (40), where the body is represented by a phantom (30) and the wireless communication device (40) is positioned in the proximity of the phantom (30), comprises determining a complex electric field in a plurality of points distributed substantially in a single planar or curved surface (31) within the phantom (30), based on measurements of the magnitude of the electric field components in these points, and based on an assumption of constant phase of the electric field components. The method further comprises estimating a whole-body SAR in the phantom (30) based on the determined complex electric field in the plurality of points, and based on propagation of the complex electric field from the plurality of points into the volume of the phantom (30).
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