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학술지 A Resonant Reactive Shielding for Planar Wireless Power Transfer System in Smartphone Application
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저자
박재형, 김동욱, 황가람, 박현호, 곽상일, 권종화, 안승영
발행일
201704
출처
IEEE Transactions on Electromagnetic Compatibility, v.59 no.2, pp.685-703
ISSN
0018-9375
출판사
IEEE
DOI
https://dx.doi.org/10.1109/TEMC.2016.2636863
협약과제
17HR1900, 스마트 사회 전자파 노출량 제어 기반 구축, 최형도
초록
Demand and interest in wireless power transfer (WPT) have been rapidly increasing lately. However, WPT systems have problems with electromagnetic field (EMF) leakage, which has stimulated interest in methods to suppress EMF leakage levels. In this paper, we propose a compact resonant reactive shielding coil topology for reducing EMF in a near-field WPT mobile device application. The proposed shielding coil employs a closed loop and matching capacitors, and is demonstrated to dramatically reduce the leakage magnetic field from a WPT system. For validation, the proposed shielding was implemented with other shielding topologies and the EMFs were measured and compared. The analytical, simulation, and measurement results were all strongly correlated.
키워드
Electromagnetic compatibility (EMC), electromagnetic fields (EMFs), electromagnetic shielding
KSP 제안 키워드
Closed-loop, Electromagnetic Field, Electromagnetic shielding, Magnetic field(MF), Mobile device application, Smartphone Application, Strongly correlated, WPT System, Wireless Power Transfer Systems(WPTS's), electromagnetic compatibility, leakage magnetic field