The human body has an influence on the radiationfrom handheld devices like smartphones, tablets and laptops,part of the energy is absorbed and the spatial distribution of theradiated part is modified. Previous studies of whole body absorp-tion have mainly been numerical or related to talk mode. In thepresent paper an experimental study involving four volunteersand three different devices is performed from 0.5 to 3 GHz. Thedevices are a laptop, a tablet, and a smartphone all held in thelap. The 3D distribution of radiation is measured. Comparingthe integrated power in the case of a person present with thedevice alone allows the determination of the relative absorptionin the whole body and the device. In general the absorption variesconsiderably between devices and as a function of frequency andperson. The absorption varies from almost nothing to close to100%. The shadowing of the body is apparent in all cases. Thelosses in the inbuilt antennas are often dominating and with amaximum total loss of 99% for the smartphone for one user. Theabsorption in the body is around 50%.
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