Frequency Characteristic of Integrated Inductor and Capacitor Device with Common Volume

In the paper is analyzed the possibility of using an MnZn ferrite ring core for realization of integrated passive devices. The inductor and capacitor are made with the commercial ferrite cores 3F3 by the Feroxcube, as common volume for both components. Dimensions of the analyzed cores are 10/6/4 and 14/9/ 5 mm. On both cores, 10 wounds of litz copper wire are placed. Using a silver paste, top and bottom part of both cores are metalized, making a capacitor. The capacitance and inductance of this hybrid design are measured using the Impedance Analyzer HP4194A, in the frequency range from 10 kHz up to 1 MHz.