Optimization of a Two-Layer 3D Coil Structure with Uniform Magnetic Field

Conventional magnetically coupled resonant wireless power transfer systems are faced with frequency splitting phenomena and impedance mismatch when a receiving coil is placed at misaligned position. These problems can be avoided by using uniform magnetic field distribution plane. In this paper, novel 3D transmitting structure improved proposed based on developed optimization method. The goal to maximize the average strength section of Hence, figures merit (FoM1 FoM2) introduced defined as product length or surface along which generated, respectively. validity method verified through laboratory measurements performed fabricated coils driven signal generator operating 150 kHz. Depending allowed ripple value predefined proportions, gives across 50% 90%