On the Spiral Resonator Arrays Size Analysis for Misalignment Compensation in Wireless Power Transfer Systems

In this study the authors aim to use a metasurface as an additional component of a two-coil Wireless Power Transfer (WPT) system and to provide a robustness analysis to misalignment between the transmitter and the receiver coils. The analysis between metasurfaces of different size and their optimization performed to improve misalignment robustness is proved by numerical and easy circuital simulations with the aim of predicting the loads to be considered for the single unit-cell to properly control the WPT system and make it more tolerant to misalignment.