*A Defected Metasurface for Field-Localizing Wireless Power Transfer DOI: http://dx.doi.org/10.5772/intechopen.95812*

enhanced by metasurfaces for wireless power transfer efficiency improvement. Sci. Reports. 2018; 8:14865. DOI: 10.1038/s41598-018-33174-8.

[17] LI L, Liu H, Zhang H, Xue W: Efficient wireless power transfer system integrating with metasurface for biological applications. IEEE Trans. Indus. Electron. 2018; 4:3230-3239. DOI: 10.1109/TIE.2017.2756580.

[18] Rakluea C, Chaimool S, Zhao Y, Akkaraekthalin P: Compact non-uniform metasurface for efficiency enhancement of planar wireless power transfer. In: Proceedings of the 2019 International Electrical Engineering Congress (iEECON2019), 6-8 March 2019, Cha-am, Thailand. New York: IEEE; 2019. p.1-4

[19] Lee W, Yoon Y: Wireless power transfer systems using metamaterials: A review. IEEE Access. 2020; 8: 147930-147947. DOI: 10.1109/ ACCESS.2020.3015176.

[20] Bui H, Pham T, Ngo V, Lee J: Investigate of various cavity configurations for metamaterialenhanced field-localizing wireless power transfer. J. Appl. Phys. 2017; 122:093102-093110. DOI: 10.1063/1.5001130.

[21] Lu C, Huang X, Rong C, Hu Z, Chen J, Tao X, Wang S, Wei B, Liu M: Shielding the magnetic field of wireless power transfer system using zero-permeability metamaterial. J. Eng. 2019; 16:1812-1815. DOI: 10.1049/ joe.2018.8678.

[22] Cho Y, Lee S, Kim D, Kim H, Song C, Kong S, Park J, Seo C, Kim J: Thin hybrid metamaterial slab with negative and zero permeability for high efficiency and low electromagnetic field in wireless power transfer systems. IEEE Trans. Electromagn. Compat. 2017; DOI: 10.1109/ TEMC.2017.2751595.

[23] Bui H, Kim J, Lee J: Design of tunable metasurface using deep neural networks for field localized wireless power transfer. IEEE Access. 2020; 8:194868-194878. DOI: 10.1109/ Access.2020.3033527.

[24] Bui H, Pham T, Kim J, Lee J: Field-focused reconfigurable magnetic metamaterial for wireless power transfer and propulsion of an untethered microrobot. J. Magn. Mater. 2020; 494:165778. DOI: 10.1016/j. jmmm.2019.165778.

[25] Pham T, Ranaweera A, Lam V, Lee J: Experiments on localized wireless power transmission using a magneto-inductive wave two-dimensional metamaterial cavity. Appl. Phys. Exp. 2016; 9:044101. DOI: 10.7567/APEX.9.044101.

[26] Shamonica E, Kalinin V, Solymar L: Magnetoinductive waves in one, two, and three dimensions. J. Appl. Phys. 2002; 92:6252-6261. DOI:10.1063/1.1510945.

[27] Sandoval F, Delgado S, Moazenzadeh A, Wallrabe U: A 2-D magnetoinductive wave device for freer wireless power transfer. IEEE Trans. Power Electron. 2019; 34: 10433-10445. DOI: 10.1109/TPEL.2019.2904875.

[28] Stevens C: Magnetoinductive waves and wireless power transfer. IEEE Trans. Power Electron. 2014; 30: 6182-6190. DOI: 10.1109/TPEL.2014.2369811.

[29] Campione S, Mesa F, Capolino F: Magnetoinductive waves and complex modes in two-dimensional periodic arrays of split ring resonators. IEEE Trans. Antennas Propag. 2013; 61: 3554-3563. DOI: 10.1109/ TAP.2013.2258395.

[30] Pham T, Ranaweera A, Ngo D, Lee J:Analysis and experiments on Fano interference using a 2D metamaterial cavity for field localized wireless power transfer. J. Phys. D: Appl.

**160**

*Wireless Power Transfer – Recent Development, Applications and New Perspectives*

system via coupled magnetic

TIE.2010.2072893.

TPEL.2013.2249670.

TEMC.2016.2557842.

resonances. IEEE Trans. Ind. Electron. 2010;58: 2906-2914. DOI: 10.1109/

[10] Hui S. Y. R, Zhong W, Lee C. K.: A critical review of recent progress in mid-range wireless power transfer. 2013;29: 4500-4511. DOI: 10.1109/

[11] ICNIRP. Guidelines for limiting exposure to electromagnetic fields (100 kHz to 300 GHz). Health Phys 118(00):000-000; 2020. Pre-print. DOI:

10.1097/HP.0000000000001210.

[13] Park H, Kwon J, Kwak S, Ahn S: Effect of airgap between a ferrite plate and metal strips on magnetic shielding. IEEE Trans. Magn. 2015; 51: 9401504. DOI: 10.1109/TMAG.2015.2432102.

[14] Li J, Yin F, Wang L, Wang L: Research on the transmission efficiency of different shielding structures of wireless power transfer system for electric vehicles. CSEE J. Pow. Ener. Sys. 2020; DOI: 10.17775/

CSEEJPES.2019.00500.

[15] Ranaweera A, Moscoso C, Lee J: Anisotropic metamaterial for efficiency enhancement of midrange wireless power transfer under coil misalignment. J. Phys. D: Appl. Phys. 2015; 48:455104(8pp). DOI:10.1088/0022-3727/48/45/455104.

[16] Younesiraad H, Bemani M: Analysis of coupling between magnetic dipoles

[12] Song C, Kim H, Jung D. H, Kim J, Kong S, Kim J, Ahn S, Kim J, Kim J: Low EMF and EMI design of a tightly coupled handheld resonant magnetic field (HH-RMF) charger for automotive battery charging. IEEE Trans. Electromag. Compat. 2016; 58: 1194-1206. DOI: 10.1109/

[1] iphone12 [Internet]. 2020. Available from https://support.apple.com/en-us/

[3] Mi C, Buja G, Choi S, Rim C: Modern advances in wireless power transfer systems for roadway powered electric vehicles. IEEE Trans. Ind. Electron. 2016;10:6533-6545. DOI: 10.1109/

[4] Patil D, McDonough M, Miller J, Fahimi B, Balsara P: Wireless power transfer for vehicular applications: overview and challenges. IEEE Trans. Transp. Elect. 2018; 4: 3-37. DOI: 10.1109/TTE.2017.2780627.

[5] Panchal C, Stegen S, Lu J:Review of static and dynamic wireless electric vehicle charging system: Int. J. Eng. Sci. Tech. 2018; 21:922-937. DOI: 10.1016/j.

[6] Garnica J, Chinga R, Lin J: Wireless power transmission: from far field to near field. IEEE Proc. 2013;101: 1321- 1331. DOI: 10.1109/JPROC.2013.2251411.

[7] Corrêa D, Resende U, Bicalho F: Experiments with a compact wireless power transfer system using strongly coupled magnetic resonance and metamaterials. IEEE Trans. Magn. 2019;55: 8401904. DOI: 10.1109/

[8] Huang R, Zhang B: Frequency, impedance characteristics and hf converters of two-coil and four-coil wireless power transfer. IEEE J. Emerg. Sel. Pow. Electron. 2015; 3:177-183. DOI:10.1109/JESTPE.2014.2315997.

[9] Cheon S, Kim Y, Kang S, Lee M, Lee J, Zyung T:Circuit-model-based analysis of a wireless energy-transfer

[2] Qi standard [Internet]. 2020. Available from https://www. wirelesspowerconsortium.com/qi/

HT211829

**References**

TIE.2016.2574993.

jestch.2018.06.015

TMAG.2019.2913767

Phys. 2017; 50:305102(10pp). Doi: 10.1088/1361-6463/aa7988.

[31] Chaimool S, Rakluea C, Akkaraekthalin P, Zhao Y: Effect of losses in printed rectangular coils for compact wireless power transfer systems. Prog. Electromag. Research C. 2019; 97:177-188. DOI:10.2528/PIERC19092601.

[32] CST Microwave Studio, Computer Simulation Technology, Framing-ham, MA, 2015.

[33] Ranaweera A, Pham T, Bui N, Ngo V, Lee J: An active metasurface for fieldlocalizing wireless power transfer using dynamically reconfigurable cavities. Sci. Rep. 2019; 9:11735. DOI: 10.1038/ s41598-019-48253-7.

[34] Lyu Y, Meng F, Yang G, Che B, Wu Q, Sun L, Ermi D, Li J:A method of using nonidentical resonant coils for frequency splitting elimination in wireless power transfer. IEEE Trans. Power Electron. 2015; 30:6097-6107. DOI: 10.1109/TPEL.2014.2387835.

[35] Lv B, Li R, Fu J, Wu Q, Zhang K, Chen W, Wang Z, Ma R: Analysis and modeling of Fano resonances using equivalent circuit elements. Sci. Rep. 2016; 6:31884. DOI: 10.1038/srep31884.

*Wireless Power Transfer – Recent Development, Applications and New Perspectives*

Phys. 2017; 50:305102(10pp). Doi: 10.1088/1361-6463/aa7988.

[32] CST Microwave Studio, Computer Simulation Technology, Framing-ham,

[33] Ranaweera A, Pham T, Bui N, Ngo V, Lee J: An active metasurface for fieldlocalizing wireless power transfer using dynamically reconfigurable cavities. Sci. Rep. 2019; 9:11735. DOI: 10.1038/

[34] Lyu Y, Meng F, Yang G, Che B, Wu Q, Sun L, Ermi D, Li J:A method of using nonidentical resonant coils for frequency splitting elimination in wireless power transfer. IEEE Trans. Power Electron. 2015; 30:6097-6107. DOI: 10.1109/TPEL.2014.2387835.

[35] Lv B, Li R, Fu J, Wu Q, Zhang K, Chen W, Wang Z, Ma R: Analysis and modeling of Fano resonances using equivalent circuit elements. Sci. Rep. 2016; 6:31884. DOI: 10.1038/srep31884.

[31] Chaimool S, Rakluea C, Akkaraekthalin P, Zhao Y: Effect of losses in printed rectangular coils for compact wireless power transfer systems. Prog. Electromag. Research C. 2019; 97:177-188. DOI:10.2528/PIERC19092601.

MA, 2015.

s41598-019-48253-7.

**162**
