A Wireless Power Transfer System Based on Dual-Band Metamaterials

Wireless power transfer (WPT) received widespread research in various field, such as wireless power in consumer electronics and electric vehicles. Recent researches have shown that adding metamaterials to the WPT system was an effective method to enhance transmission efficiency and distance. In view...

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Bibliographic Details
Published inIEEE microwave and wireless components letters Vol. 32; no. 6; pp. 615 - 618
Main Authors Zheng, Zonghua, Fang, Xin, Zheng, Yitian, Feng, Haoming
Format Journal Article
LanguageEnglish
Published IEEE 01.06.2022
Subjects
Coils
Dual band
Dual-band metamaterials
improve efficiency
Magnetic materials
Metamaterials
negative permeability
Permeability
Wireless communication
Wireless power transfer
wireless power transfer (WPT)
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Summary:Wireless power transfer (WPT) received widespread research in various field, such as wireless power in consumer electronics and electric vehicles. Recent researches have shown that adding metamaterials to the WPT system was an effective method to enhance transmission efficiency and distance. In view of the fact that traditional metamaterial slab often had a single working frequency point and was not suitable for multifrequency WPT, this letter analyzed and discussed the mechanism of magnetic negative metamaterial enhancing WPT efficiency. Moreover, two kinds of metamaterials, self-resonant dual-band negative permeability (SRDB-NPM) metamaterial and externally compensated dual-band negative permeability (ECDB-NPM) metamaterial, were designed. Finally, the effectiveness of two kinds of dual-band metamaterials to improve the efficiency at two different frequencies is verified by simulation and experiment.
ISSN:1531-1309
1558-1764
DOI:10.1109/LMWC.2022.3140535