Linear phase bandpass sampled-data filters

Author

Doss, Magdy M.

Author_Institution

Dept. of Electr. Eng., Assiut Univ., Egypt

Volume

2

fYear

1999

fDate

1999

Firstpage

736

Abstract

Approximately linear phase IIR digital filters are designed here as the sum of two allpass transfer functions, one of them is an exactly linear phase FIR filter or simply a delay element, while the other one is an IIR allpass. The IIR allpass parameters are obtained by using an optimization technique, in which the stability of the transfer function is guaranteed through special choice of the optimisation parameters. The method has the advantage that it can be easily applied to switched capacitor filters. A new simple implementation method is given for this case

Keywords

IIR filters; band-pass filters; circuit optimisation; digital filters; linear phase filters; sampled data filters; switched capacitor filters; transfer functions; IIR digital filters; SC filters; allpass transfer functions; linear phase bandpass filters; optimisation parameters; optimization technique; sampled-data filters; switched capacitor filters; transfer function stability; Band pass filters; Capacitors; Delay; Digital filters; Finite impulse response filter; IIR filters; Linear approximation; Nonlinear filters; Stability; Transfer functions;

fLanguage

English

Publisher

ieee

Conference_Titel

Circuits and Systems, 1999. 42nd Midwest Symposium on

Conference_Location

Las Cruces, NM

Print_ISBN

0-7803-5491-5

Type

conf

DOI

10.1109/MWSCAS.1999.867742

Filename

867742