Abstract
A novel SWAstika Shaped Split Ring Resonator (SWASSRR) is proposed and its characteristic are investigated to reduce the Specific Absorption Ratio (SAR). SWASSRRs are inserted in between human head model and cell phone antenna in order to reduce the interaction of Electro-Magnetic (EM) radiation by creating stop bands or resonances around the 3G operating band that is 2100MHz. Optimization of SWASSRRs structural parameters leads to the reduction of the local SAR up to 57% at 2100MHz. We have also done analysis with position and place of SWASSRR to get best results. Variation of avg. SAR and local SAR is calculated against the distance on SAR line and are within acceptable range. All the analysis for proposed structure is carried out using 3 layer human head model, PIFA antenna at 2100MHz.
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