Research Article Shifted-modi ed Chebyshev lters

Abstract: This paper introduces a new type of lter approximation method that utilizes shifted-modied Chebyshev lters. Construction of the new lters involves the use of shifted-modied Chebyshev polynomials that are formed using the roots of conventional Chebyshev polynomials. The study also includes 2 tables containing the shifted-modied Chebyshev polynomials and the normalized element values for the low-pass prototype lters up to degree 6. The transducer power gain, group delay, and impulse and step responses of the proposed lters are compared with those of the Butterworth and Chebyshev lters, and a sixth-order lter design example is presented to illustrate the implementation of the new method. Key words: Butterworth lters, Chebyshev lters, lters, network 1