A New Synthesis Technique of High-Frequency Inductor Equivalent Circuits

The equivalent circuit of a ferrite core inductor in a wide frequency range (0 - 500 MHz) with the separation of the influence of the wire and the influence of the core on the complex resistance of the inductor is presented. The inductor equivalent circuit was built taking into account the physical processes occurring in the inductor: the influence of the wire resistance, the influence of the core material, the mutual influence of the wire and the core material. Its frequency characteristics turned out to be quite close with the measured inductor impedance frequency characteristics in a wide frequency band (0 - 500 MHz). A technique for extracting parameters in presented ferrite core inductor equivalent circuit is shown, which allows you to quickly determine the parameters of the inductor equivalent circuit from the measured inductor impedance frequency characteristics.