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Calculation of Self-Resonant Spiral Coils for Wireless Power Transfer Systems With a Transmission Line Approach

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2 Author(s)
Breitkreutz, B. ; FG Theor. Elektrotech., Tech. Univ. Berlin, Berlin, Germany ; Henke, H.

A mathematical model is presented for the calculation of self-resonant planar coils with an arbitrary winding function. It consists of a transmission line model and allows for a fast computation. It is used to determine the resonant frequencies and current distributions of given geometries and optimize them with respect to their quality factors. Thereby, compact high-quality resonators for resonant wireless power transfer systems can be found.

Published in:

Magnetics, IEEE Transactions on  (Volume:49 ,  Issue: 9 )