Abstract
This paper analyzed the effects of electromagnetic (EM) radiation mobile phone on human head with different holdingpositions. The EM radiation is measured in terms of specific absorption rate (SAR). The human head exposed toglobal system for mobile communication (GSM) frequency bands. The radiation absorption analyzed throughsimulations by applying finite-difference time domain (FDTD) method using computer simulation technology (CST)microwave studio. The specific absorption rate (SAR) was measured for two common holding positions of mobilephone: Cheek and Tilt. In this tilt position, the mobile phone tilted for 15° and 30° from a person’s head. SARsexhibited in much lower values as the mobile phone held in cheek position than that of tilt position. Helical antennawith substrate of Rogers RO3006 (loss free) found to be best tested substrate by resulted in lower SAR due to itslower conductivity properties than that of RO4003.
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