Harmony Search-Based Fractional-Order Chebyshev Filter

This work focuses on the analysis of (1 + α) order Chebyshev low pass filter using the Harmony Search optimization technique. MATLAB simulations of fractional (1 + α) order low pass filters has been performed for α changes from 0.1 to 0.9 in the steps of 0.1. Further, the Tow-Thomas Biquad circuit is used to verify the optimized quantitative results of fractional-order Chebyshev low pass filter. MATLAB and LTSPICE simulations have been compared in order to construct the most effective (1 + α) fractional-order Chebyshev low pass filter.