Title :
Enhancement of transmission characteristics in elliptic filter design
Author_Institution :
Dept. of Electr. & Comput. Eng., Manitoba Univ., Winnipeg, Man., Canada
Abstract :
In filter design, the delay characteristic becomes flatter as the values of the pole-Q decrease. For elliptic filters there exists a method by which one may continuously decrease Q values by increasing a single parameter within the design specifications. It is demonstrated that the pole Q can be lowered by increasing ωs (the stopband frequency where the stopband begins). As a consequence the step response in the time domain as well as the delay characteristic in the frequency domain improves
Keywords :
Q-factor; active filters; delays; frequency-domain synthesis; poles and zeros; step response; time-domain synthesis; transfer functions; delay characteristic; elliptic filter design; frequency domain; pole Q; step response; stopband frequency; time domain; transmission characteristics; Attenuation; Delay effects; Filters; Frequency; Hip; Integral equations; Jacobian matrices; Passband; Poles and zeros; Polynomials;
Conference_Titel :
Circuits and Systems, 1991., Proceedings of the 34th Midwest Symposium on
Conference_Location :
Monterey, CA
Print_ISBN :
0-7803-0620-1
DOI :
10.1109/MWSCAS.1991.251953
