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Investigation of Near-Field Wireless Power Transfer in the Presence of Lossy Dielectric Materials | IEEE Journals & Magazine | IEEE Xplore

Investigation of Near-Field Wireless Power Transfer in the Presence of Lossy Dielectric Materials


Abstract:

We derive an analytic upper bound in power transfer efficiency (PTE) for wireless power transfer between a pair of antennas separated by a spherical material shell. The f...Show More

Abstract:

We derive an analytic upper bound in power transfer efficiency (PTE) for wireless power transfer between a pair of antennas separated by a spherical material shell. The formulation is based on the free space PTE bound derived previously, and incorporates an additional pair of incoming and outgoing spherical waves within the shell. The derived PTE bounds are verified using numerical simulation via FEKO and show good agreement for both TM mode and TE mode radiators. Using the derived theory, lossy dielectric material effects on wireless power transfer are studied. Power transfer measurements through walls are also reported and compared with the theory.
Published in: IEEE Transactions on Antennas and Propagation ( Volume: 61, Issue: 1, January 2013)
Page(s): 482 - 488
Date of Publication: 24 August 2012

ISSN Information:


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