Study on the Inductance Calculation Methods of Spiral Coils at High Frequency Conditions

Abstract

In this paper, a deep analysis of modelling and simulation is conducted to calculate a fairly precise value of inductance of a coil at high-frequency using industry standard ANSYS Maxwell simulation tool and MATLAB. Two different approaches to the simulation of inductance calculation are presented. The calculation of self-inductance in the first approach is computed by assigning the high-frequency components as a variable, which is used for sweeping analysis, which makes the analysis simpler and achieves the purpose of this research. Results proved that the self-inductance of a coil falls off with the frequency. Furthermore, an optimization algorithm is carried out in the second approach to design a coil, based on a specific inductance value at high-frequency when transient current flows through it.