Mutual Inductance Evaluation Between Two Parallel Conductors on a PCB

In this paper, we present a comprehensive analysis of two parallel conductors, fabricated on a printed circuit board (PCB), forming an elementary planar transformer, with an emphasis on extracting performance parameters such as self-inductance, resistance, coupling coefficient, mutual inductance, and inter-winding capacitance. Results issued from theoretical equations, FEM-based simulations, and characterizations were compared together to evaluate the mutual inductance. A procedure using the Open-Short de-embedding technique has been successfully applied to extract the correct performance values.