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Rollable metamaterial screen for magnetic resonance coupling-based high-efficiency wireless power transfer

Published online by Cambridge University Press:  09 September 2020

Woosol Lee Open the ORCID record for Woosol Lee [Opens in a new window]  and
Yong-Kyu Yoon
Woosol Lee
Affiliation:
Department of Electrical and Computer Engineering, University of Florida, Gainesville, FL, USA
Yong-Kyu Yoon*
Affiliation:
Department of Electrical and Computer Engineering, University of Florida, Gainesville, FL, USA
*
Author for correspondence: Yong-Kyu Yoon, E-mail: [email protected]
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Abstract

This paper presents a rollable metamaterial screen for high-efficiency wireless power transfer (WPT) system based on magnetic resonance coupling, which operates at 4.5 MHz. The rollable metamaterial screen with a fully expanded area of 750 mm × 750 mm is located in the middle between transmitter and receiver coils and focuses the magnetic field and, by such a way, significantly improves power transfer efficiency (PTE). The metamaterial screen can be rolled up, e.g. onto the ceiling when it is not used, and thus does not require any designated space for the screen saving space. A WPT system with the rollable metamaterial screen is designed, fabricated, and characterized. Improved PTE is qualitatively and quantitatively verified by light bulb experiments and vector network analyzer measurements. The PTE of the WPT system with the metamaterial screen increases from 36 to 58.52% and 10.24 to 31.36% for the distances between the transmitter and receiver coils 100 and 150 cm, respectively. The effects of lateral and angular misalignments on the PTE of the WPT system are also studied. Obtained results show that the rollable metamaterial screen improves the PTE even at the misaligned condition.

Keywords

Magnetic resonance coupling (MRC)power transfer efficiency (PTE)rollable metamaterial screenwireless power transfer
Type
Metamaterials and Photonic Bandgap Structures
Information
International Journal of Microwave and Wireless Technologies , Volume 13 , Issue 4 , May 2021 , pp. 365 - 373
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Copyright
Copyright © The Author(s), 2020. Published by Cambridge University Press in association with the European Microwave Association

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References

Tesla, N. Apparatus for transmitting electrical energy, US Patent, 1119732, Dec. 1914, No. 371817.Google Scholar
Kurs, A, Moffatt, R and Soljačić, M (2010) Simultaneous mid-range power transfer to multiple devices. Applied Physics Letters 96, Art. no. 044102, 044102.1–044102.3.CrossRefGoogle Scholar
Wang, B, Teo, KH, Nishino, T, Yerazunis, W, Barnwell, J and Zhang, J (2011) Experiments on wireless power transfer with metamaterials. Applied Physics Letters 98, Art. no. 254101, 254101.1–254101.3.CrossRefGoogle Scholar
Ranaweera, ALAK, Duong, TP and Lee, JW (2014) Experimental investigation of compact metamaterial for high efficiency mid-range wireless power transfer applications. Journal of Applied Physics 116, 043914.1–043914.8.Google Scholar
Cho, Y, Lee, S, Kim, DH, Kim, H, Song, C, Kong, S, Park, J, Seo, C and Kim, J (2018) Thin hybrid metamaterial slab with negative and zero permeability for high efficiency and low electromagnetic field in wireless power transfer systems. IEEE Transactions on Electromagnetic Compatibility 60, 1001–1009.CrossRefGoogle Scholar
Shaw, T and Mitra, D (2019) Wireless power transfer system based on magnetic dipole coupling with high permittivity metamaterials. IEEE Antennas and Wireless Propagation Letters 18, 1823–1827.Google Scholar
Smith, DR, Schurig, D, Mock, JJ, Kolinko, P and Rye, P (2004) Partial focusing of radiation by a slab of indefinite media. Applied Physics Letters 84, 2244–2246.CrossRefGoogle Scholar
Maslovski, S, Tretyakov, S and Alitalo, P (2004) Near-field enhancement and imaging in double planar polariton-resonant structures. Journal of Applied Physics 96, 1293–1300.CrossRefGoogle Scholar
Padilla, WJ, Basov, DN and Smith, DR (2006) Negative refractive index metamaterials. Materials Today 9, 28–35.CrossRefGoogle Scholar
Veselago, V (1968) The electrodynamics of substances with simultaneously negative values of ɛ and μ. Soviet Physics-Uspekhi 10, 509–514.Google Scholar
Pendry, JB (2000) Negative refraction makes a perfect lens. Physical Review Letters 85, 3966.CrossRefGoogle ScholarPubMed
Urzhumov, Y and Smith, DR (2011) Metamaterial-enhanced coupling between magnetic dipoles for efficient wireless power transfer. Physical Review B 83, 205114.CrossRefGoogle Scholar
Hao, T, Stevens, CJ and Edwards, DJ (2005) Optimization of metamaterials by Q factor. Electronics Letters 41, 653.CrossRefGoogle Scholar
Smith, D, Schultz, S, Markos, P and Soukoulis, C (2002) Determination of effective permittivity and permeability of metamaterials from reflection and transmission coefficients. Physical Review B: Condensed Matter and Materials 65, Art. no. 195104, 195104.1–195104.5.CrossRefGoogle Scholar
Smith, D, Vier, D, Koschny, T and Soukoulis, C (2005) Electromagnetic parameter retrieval from inhomogeneous metamaterials. Physical Review E: Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics 71, Art. no. 036617, 036617.1–036617.11.CrossRefGoogle ScholarPubMed
Chen, X, Grzegorczyk, TM, Wu, B-I, Pacheco, J Jr and Kong, JA (2004) Robust method to retrieve the constitutive effective parameters of metamaterials. Physical Review E: Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics 70, Art. no. 016608, 016608.1–016608.7.CrossRefGoogle ScholarPubMed
Hoang, H, Lee, S, Kim, Y, Choi, Y and Bien, F (2012) An adaptive technique to improve wireless power transfer for consumer electronics. IEEE Transactions on Consumer Electronics 58, 327–332.CrossRefGoogle Scholar
Sample, AP, Meyer, DA and Smith, JR (2011) Analysis, experimental results, and range adaption of magnetically coupled resonators for wireless power transfer. IEEE Transactions on Industrial Electronics 58, 544–554.CrossRefGoogle Scholar
Duong, TP and Lee, JW (2011) Experimental results of high-efficiency resonant coupling wireless power transfer using a variable couple method. IEEE Microwave and Wireless Components Letters 21, 442–444.CrossRefGoogle Scholar
Rajagopalan, A, RamRakhyani, AK, Schurig, D and Lazzi, G (2014) Improving power transfer efficiency of a short-range telemetry system using compact metamaterials. IEEE Transactions on Microwave Theory and Techniques 62, 947–955.CrossRefGoogle Scholar
Rodríguez, ESG, RamRakhyani, AK, Schurig, D and Lazzi, G (2016) Compact low-frequency metamaterial design for wireless power transfer efficiency enhancement. IEEE Transactions on Microwave Theory and Techniques 64, 1644–1654.CrossRefGoogle Scholar