Effect of the hand on cellular phone radiation

To investigate the electromagnetic radiation effects of holding a cellular phone, an anatomical model of the hand is introduced based on magnetic reso nance imaging where I I different tissues are recognised. A hand-held phone was placed close to an anatomical model of the head in the intended use po sition compliant with the European standard. A commercial dual-band GSM cel lular phone was modelled in its real configuration, a CAD model was generat ed by using a specific procedure and the SAR inside the user's hand and hea d evaluated. The influence of the hand holding a phone on RF exposure for t esting compliance with international standards limits is shown. The procedu re provides cellular phone antenna designers with a methodology that can ta ke into account dosimetry constraints from the first design stages of new c ellular phones. Experimental measurements confirming the computed results a nd validating the consistency of the suggested methodology are presented.