Qinghua Wang, W. Che, G. Monti, F. Mastri, M. Mongiardo
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On the Use of Matching Networks and Relays for Maximizing the Gains of IR WPT Links
This paper analyzes the problem of maximizing the gains of a single transmitter–single receiver inductive resonant Wireless Power Transfer link (WPT). Two different approaches are considered and compared: the use of impedance matching networks and the use of additional resonators (relay elements). It is shown that, if from a theoretical point of view the two approaches are equivalent, in some practical cases the maximization of the gains by means of relays may not be feasible.