Study on the mass averaging of SAR distributions

In this paper, we study the effect of the position of the averaging volume on the averaged SAR values. CENELEC proposes that the SAR, averaged over a cube with a mass of 10 g is less than 2 W/kg. Though, depending on the position of the cube, large differences can be observed. For a simple benchmark problem of a dipole antenna irradiating a sphere, we obtained differences up to 20%. If an irregular volume is considered, the SAR becomes again significantly higher.