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Magnetic superlens-enhanced inductive coupling for wireless power transfer
| Content Provider | Semantic Scholar |
|---|---|
| Author | Huang, Da Qiang Urzhumov, Yaroslav A. Smith, David Ryan Teo, Koon Hoo Zhang, Jinyun |
| Copyright Year | 2012 |
| Abstract | We investigate numerically the use of a negative-permeability perfect lens for enhancing wireless power transfer between two current carrying coils. The negative permeability slab serves to focus the flux generated in the source coil to the receiver coil, thereby increasing the mutual inductive coupling between the coils. The numerical model is compared with an analytical theory that treats the coils as point dipoles separated by an infinite planar layer of magnetic material [Urzhumov et al., Phys. Rev. B 19, 8312 (2011)]. In the limit of vanishingly small radius of the coils, and large width of the meta-material slab, the numerical simulations are in excellent agreement with the analytical model. Both the idealized analytical and realistic numerical models predict similar trends with respect to meta-material loss and anisotropy. Applying the numerical models, we further analyze the impact of finite coil size and finite width of the slab. We find that, even for these less idealized geometries, the presence of the magnetic slab greatly enhances the coupling between the two coils, including cases where significant loss is present in the slab. We therefore conclude that the integration of a meta-material slab into a wireless power transfer system holds promise for increasing the overall system performance. Journal of Applied Physics This work may not be copied or reproduced in whole or in part for any commercial purpose. Permission to copy in whole or in part without payment of fee is granted for nonprofit educational and research purposes provided that all such whole or partial copies include the following: a notice that such copying is by permission of Mitsubishi Electric Research Laboratories, Inc.; an acknowledgment of the authors and individual contributions to the work; and all applicable portions of the copyright notice. Copying, reproduction, or republishing for any other purpose shall require a license with payment of fee to Mitsubishi Electric Research Laboratories, Inc. All rights reserved. Copyright c © Mitsubishi Electric Research Laboratories, Inc., 2012 201 Broadway, Cambridge, Massachusetts 02139 Magnetic superlens-enhanced inductive coupling for wireless power transfer Da Huang, Yaroslav Urzhumov, David R. Smith, Koon Hoo Teo, and Jinyun Zhang Citation: J. Appl. Phys. 111, 064902 (2012); doi: 10.1063/1.3692757 View online: http://dx.doi.org/10.1063/1.3692757 View Table of |
| File Format | PDF HTM / HTML |
| Alternate Webpage(s) | http://www.merl.com/publications/docs/TR2012-023.pdf |
| Alternate Webpage(s) | https://dukespace.lib.duke.edu/dspace/bitstream/handle/10161/5722/Magnetic%20superlens-enhanced%20inductive%20coupling%20for%20wireless%20power%20transfer_published.pdf?isAllowed=y&sequence=1 |
| Language | English |
| Access Restriction | Open |
| Subject Keyword | APPL1 gene Acknowledgment index Anisotropy Broadway (microprocessor) Carrying Coil Device Component Computer simulation Copy (object) Copyright Electroconvulsive Therapy Fees Flux Google Street View Inductive coupling Laboratory Mathematical model Numerical analysis Sensorineural Hearing Loss (disorder) Slab allocation tetra(ethylene glycol)mono-n-octanoate width |
| Content Type | Text |
| Resource Type | Article |
