Title :
Tunable active allpass sections
Author :
Holt, A.G.J. ; Gray, J.P.
Author_Institution :
University of Newcastle upon Tyne, Merz Laboratories, Department of Electrical Engineering, Newcastle upon Tyne, UK
Abstract :
Two second-order allpass circuits are described, realising a pair of complex poles (and matching zeros) by analogue simulation. The group-delay response can be made to be essentially dependent on only two network parameters whose values can be selected to `tune¿ to a particular characteristic.
Keywords :
filters; quadripole networks;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19680029
