Magnetic coupling analysis in wireless transfer energy

Developing procedures for safely and accuracy wireless energy transfer is still a challenge and an actual research theme. The focus of this paper is to highlight some aspects regarding wireless power transfer and the necessary conditions of this process. Thus, we analyze: the mutual inductance expression and the computation of inductivity for any configuration of two magnetic coupled coils (the procedure was implemented into Matlab and compared data not only with the values from literature but also with experimental measurements from a handmade device), and other important factors involved in this process.