• 대한전기학회
Mobile QR Code QR CODE : The Transactions of the Korean Institute of Electrical Engineers
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Title Phone Case using the EBG Structure for Reducing SAR
Authors 오도영(Oh, Doyoung) ; 유형석(Yoo, Hyoungsuk)
DOI https://doi.org/10.5370/KIEE.2015.64.1.078
Page pp.78-81
ISSN 1975-8359
Keywords Electromagnetic band gap (EBG) ; Phone antenna ; Specific absorption rate (SAR) ; Total radiated power (TRP)
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.