A New Design for Compact Size Wireless Power Transfer Applications Using Spiral Defected Ground Structures
In this article, a new wireless power transfer (WPT) design is proposed for improving the efficient of system. The suggested system contains two spiral defected ground structure (DGS) resonators coupled back-to-back. The spiral DGS alone acts as band stop filter (BSF), and when the two resonators are coupled back-to-back, a BSF is emerged leading to WPT system. The DGS resonators are loaded through chip capacitors for miniaturization. The proposed structures are fabricated and tested. The proposed system has a highest efﬁciency of 97.7% at a transmission distance of 10 mm which is suitable for biomedical applications. Both simulated and experimental results are in good concurrence.
Document typePeer reviewed
Document versionFinal PDF
SourceRadioengineering. 2018 vol. 27, č. 4, s. 1032-1037. ISSN 1210-2512
- 2018/4