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Analysis of a Wireless Power Transfer System by the Impedance Expansion Method Using Fourier Basis Functions
Nozomi HAGA Masaharu TAKAHASHI
IEICE TRANSACTIONS on Communications
Publication Date: 2018/07/01
Online ISSN: 1745-1345
Type of Manuscript: PAPER
Category: Antennas and Propagation
wireless power transfer, method of moments, impedance expansion method, Fourier basis functions,
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The impedance expansion method (IEM), which has been previously proposed by the authors, is a circuit-modeling technique for electrically-very-small devices. This paper provides a new idea on the principle of undesired radiation in wireless power transfer systems by employing IEM. In particular, it is shown that the undesired radiation is due to equivalent infinitesimal dipoles and loops of the currents on the coils.