Electromagnetic analysis of wireless power transfer system with Improvised Absorbing Boundary Conditions

The performance of the Improvised Absorbing Boundary Conditions (IABC) is studied when applied to wireless power transfer (WPT) systems. The IABC is one of the approximated techniques to solve the unbounded electromagnetic problems. It was recently proposed to solve quasi-static problems and extended to the high frequencies. Non-radiative WPT based on the magnetic resonance and near-field coupling of two-loop resonators was first reported by Tesla and nowadays, it has attracted interest from industry and academic researchers. The frequency used in non-radiative WPT systems are rather low and therefore, high frequency electromagnetic techniques e.g., radiation boundary conditions and PML are not applicable to analyze the WPT systems. In this manuscript, the advantages of the IABC is discussed.