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http://dx.doi.org/10.5370/KIEE.2015.64.1.078

Phone Case using the EBG Structure for Reducing SAR  

Oh, Doyoung (sohool of Dept. of Biomedical Engineering, University of Ulsan)
Yoo, Hyoungsuk (School of Electrical Eng., University of Ulsan)
Publication Information
The Transactions of The Korean Institute of Electrical Engineers / v.64, no.1, 2015 , pp. 78-81 More about this Journal
Abstract
This paper investigates the performance of phone case with different permittivities like plastic, urethane and silicone. Then, we put an electromagnetic band gap (EBG) structure in phone case to reduce the specific absorption rate (SAR). In order to design the phone case, a loop antenna for PCS 1900 band was used. The phone case consists of a hairpin-like EBG structure that is more compact than other EBG structures. The SEMCAD X fdtd simulation results showed that, this proposed phone case can reduce SAR by 13 - 30% at similar power that is radiated by the antenna. This phone case can be used in future to reduce the SAR from mobile phones.
Keywords
Electromagnetic band gap (EBG); Phone antenna; Specific absorption rate (SAR); Total radiated power (TRP);
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