MO-CCCII Based Current-Mode Fractional-Order Universal Filter

Abstract

In this study, a new current-mode fractional-order universal filter is presented by using multi mode second generation current controlled current conveyors (MO-CCCII). The circuit consists of two resistors and grounded capacitors with only three MO-CCCII. This is accomplished with a fractional-order capacitor, also known as a stationary phase element, to form a fractional-order filter. The value of this capacitor depends only on the fractional-order [Formula: see text]. The proposed filter is designed as fractional [Formula: see text], 1.8 and 1.9 order. The fractional-order capacitor is obtained using the Foster-I [Formula: see text] network circuit. The filter is simulated with BJT-based MO-CCCII using PSPICE simulation program for the filter to verify the theory and to show the performance of it. The fractional-order universal filter outputs are provided the desired stop band attenuation and more precise control of attenuation slope. Through the fractional-order parameter, it is revealed that the filter designer can fully meet the requirements of the filter. It also offers design flexibility since the frequencies of interest depend not only on circuit components but also on fractional-order parameters.