Design of MURROMAF filters with equiripple stopband attenuation

A class of filters known as multiple real-pole equal-ripple rational (MRPER) filters has already been proposed. It provides the advantages of third-order block realization or the Cauer type of filter. A design technique is proposed here for a multiple real-root maximally flat (MURROMAF) filter with equiripple stopband. Hence, the filter designer is now provided with a third-order block realization of the inverse Chebyshev type of filter. © 1989 Taylor & Francis Ltd.