Walls effect over the specific absorbtion rate in the human head due to mobile phone exposure

Abstract

The purpose of this paper is to determine the specific absorption rate (SAR) in the human head in 10 g of mass tissues due to mobile phone exposure with walls nearby. The mobile phone was modeled as a Ȝ/4 monopole antenna placed at a distance of 1 mm from the human head and the SAR values were determined using CST software for two GSM frequencies, 900 and 1800 MHz taking into consideration different placements of the walls in the head vicinity and antenna positions too. As a particular application SAR was determined when the human head is situated inside a metallic cage whose dimensions are comparable with an elevator cabin. Keywords-numerical methods, , CST software, realistic human model, specific absorption rate (SAR)I.

SAR and thermal distribution of pregnant woman and child inside elevator cabin

“…EM exposure within metallic environments is, also, a topic of great interest because of the multiple wave reflections occurring inside or near them. The averaged SAR values can be increased inside metallic enclosures compared to free space [33][34][35] and at the presence of metallic walls [36,37]. Whole-body exposure assessment might be equally significant with the peak averaged SAR values in the head at fully and partially enclosed metallic elevator cabins [38,39].…”

E-Field Distribution and Dosimetry of an Anatomical Human Body model, Inside Elevator cabin: Comparison between five different structures of elevator cabins

“…They have shown that SAR values are increased in the full enclosures as compared to the free space [5,6]. Also when antenna is tilted 45 degrees from its initial position the SAR 10g is increased [7]. The structure of the enclosure and the material it is made of plays a role in determining SAR as well [8].…”