Title :
Method for design of allpass filters
Author :
Schelstraete, S.
Author_Institution :
Alcatel Corp. Res. Center, Antwerp, Belgium
fDate :
4/1/1999 12:00:00 AM
Abstract :
A new method for allpass filter design is presented. The method leads to a solution for the phase that is equal to the desired phase for 2N+1 values of frequency (if N is the order of the allpass filter). These values can be chosen at will in the approximation interval. The resulting phase error therefore displays a ripple behaviour. The solutions obtained in this way could be used as an initial solution for an exchange algorithm in order to produce an equiripple solution
Keywords :
all-pass filters; equiripple filters; network synthesis; allpass filter; design; equiripple filter; exchange algorithm; phase error;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19990423
