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Highly efficient wireless power transfer using metamaterial slab with zero refractive property

A highly efficient wireless power transfer using a metamaterial slab with a zero refractive property is proposed. The proposed metamaterial slab consists of a spiral structure, a lumped element and a via through the ground. A prototype of a wireless power transfer system and a metamaterial slab was...

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Published in:	Electronics letters 2014-07, Vol.50 (16), p.1158-1160
Main Authors:	Kim, Hyoungjun, Seo, Chulhun
Format:	Article
Language:	English
Subjects:	Applied sciences Circuit properties Coiling coils Electric, optical and optoelectronic circuits Electronics Exact sciences and technology frequency 6.78 MHz Grounds inductive power transmission lumped element magnetic field focusing Magnetic fields metamaterial slab Metamaterials Microwave circuits, microwave integrated circuits, microwave transmission lines, submillimeter wave circuits Power electronics, energy conversion and sustainability Power transfer radiation loss reduction Resonant frequencies resonant frequency Slabs spiral structure Transmission transmitting coil wireless power transfer zero refractive property
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creator	Kim, Hyoungjun Seo, Chulhun
description	A highly efficient wireless power transfer using a metamaterial slab with a zero refractive property is proposed. The proposed metamaterial slab consists of a spiral structure, a lumped element and a via through the ground. A prototype of a wireless power transfer system and a metamaterial slab was designed and fabricated. Experiment results prove the transfer efficiency improvement with the proposed metamaterial slab. The power transfer efficiency is improved by reducing the radiation loss through focusing the magnetic field. The power transfer efficiency is above 45% at a distance of 100–150 mm, and the resonant frequency is 6.78 MHz. The sizes of the transmitting coil and the metamaterial slab are 140 × 210 mm and 50 × 70 mm, respectively.
doi_str_mv	10.1049/el.2014.1596
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The sizes of the transmitting coil and the metamaterial slab are 140 × 210 mm and 50 × 70 mm, respectively.</description><subject>Applied sciences</subject><subject>Circuit properties</subject><subject>Coiling</subject><subject>coils</subject><subject>Electric, optical and optoelectronic circuits</subject><subject>Electronics</subject><subject>Exact sciences and technology</subject><subject>frequency 6.78 MHz</subject><subject>Grounds</subject><subject>inductive power transmission</subject><subject>lumped element</subject><subject>magnetic field focusing</subject><subject>Magnetic fields</subject><subject>metamaterial slab</subject><subject>Metamaterials</subject><subject>Microwave circuits, microwave integrated circuits, microwave transmission lines, submillimeter wave circuits</subject><subject>Power electronics, energy conversion and sustainability</subject><subject>Power transfer</subject><subject>radiation loss reduction</subject><subject>Resonant frequencies</subject><subject>resonant frequency</subject><subject>Slabs</subject><subject>spiral structure</subject><subject>Transmission</subject><subject>transmitting coil</subject><subject>wireless power transfer</subject><subject>zero refractive property</subject><issn>0013-5194</issn><issn>1350-911X</issn><issn>1350-911X</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2014</creationdate><recordtype>article</recordtype><recordid>eNp90E9rFDEYBvAgFlxqb36AgAoenDVvJn92jlq2Vhjw0kJPhkzmTRvJzozJbJf105t1i1YRT8nh97558hDyAtgSmGjeYVxyBmIJslFPyAJqyaoG4OYpWTAGdSWhEc_IWc6hKwyEYgIW5MtluL2Le4reBxdwmOkuJIyYM53GHSY6JztkXy7bHIZbusHZbuyMKdhIc7Rd8fMd_Y5ppAl9sm4O90inNE6Y5v1zcuJtzHj2cJ6S64v11fll1X7--On8fVs5obmsGt-pvgevvRKKS4a91KoTndPcWoagywd5ozvgXmrLHZOdrKFXPfra25WqT8mb497y8Lct5tlsQnYYox1w3GYDSoOUnP2kL_-iX8dtGko6U4hiulkxUdTbo3JpzLn8zEwpbGzaG2Dm0LfBaA59m0Pfhb9-WGqzs7H0MLiQf83wleagAYqTR7cLEff_3WnWbcs_XLASXZa5V8e5gI_yrttHfOr97xr-YP9M_AOTMaj4</recordid><startdate>20140731</startdate><enddate>20140731</enddate><creator>Kim, Hyoungjun</creator><creator>Seo, Chulhun</creator><general>The Institution of Engineering and Technology</general><general>Institution of Engineering and Technology</general><general>John Wiley & Sons, Inc</general><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>8FE</scope><scope>8FG</scope><scope>ABJCF</scope><scope>AFKRA</scope><scope>ARAPS</scope><scope>AZQEC</scope><scope>BENPR</scope><scope>BGLVJ</scope><scope>CCPQU</scope><scope>DWQXO</scope><scope>GNUQQ</scope><scope>HCIFZ</scope><scope>JQ2</scope><scope>K7-</scope><scope>L6V</scope><scope>M7S</scope><scope>P5Z</scope><scope>P62</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>PRINS</scope><scope>PTHSS</scope><scope>7SP</scope><scope>8FD</scope><scope>F28</scope><scope>FR3</scope><scope>L7M</scope></search><sort><creationdate>20140731</creationdate><title>Highly efficient wireless power transfer using metamaterial slab with zero refractive property</title><author>Kim, Hyoungjun ; 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subjects	Applied sciences Circuit properties Coiling coils Electric, optical and optoelectronic circuits Electronics Exact sciences and technology frequency 6.78 MHz Grounds inductive power transmission lumped element magnetic field focusing Magnetic fields metamaterial slab Metamaterials Microwave circuits, microwave integrated circuits, microwave transmission lines, submillimeter wave circuits Power electronics, energy conversion and sustainability Power transfer radiation loss reduction Resonant frequencies resonant frequency Slabs spiral structure Transmission transmitting coil wireless power transfer zero refractive property
title	Highly efficient wireless power transfer using metamaterial slab with zero refractive property
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