Unlike most books on filters, Analog and Digital Filter Design does not start from a position of mathematical complexity. It is written to show readers how to design effective and working electronic filters. The background information and equations from the first edition have been moved into an appendix to allow easier flow of the text while still providing the information for those who are interested. The addition of questions at the end of each chapter as well as electronic simulation tools has allowed for a more practical, user-friendly text.

Key Features

*Provides a practical design guide to both analog and digital electronic filters *Includes electronic simulation tools *Keeps heavy mathematics to a minimum


Engineers in RF, Audio and other analog and digital communications circuit design, test & measurement, and production environments

Table of Contents

Introduction; Analog Filters; The Path To Analog Filter Design; Digital Filters; Digital Filter Types; The Path To Digital Filter Design; Exercises; Time And Frequency Response; Filter Requirements; The Time Domain; Analog Filter Normalization; Normalized Lowpass Responses; Bessel Response; Bessel Normalized Lowpass Filter Component Values; Butterworth Response; Butterworth Normalized Lowpass Component Values; Normalized Component Values for RL))RS OR RL((RS; Normalized Component Values for Source and Load Impedances within a Factor of Ten Chebyshev Response; Normalized Component Values; Equal Load Normalized Component Value Tables; Normalized Element Values for Filters with RS=0 OR RS=*; Inverse Chebyshev Response; Component Values Normalized for 1RAD/S Stopband; Normalized 3dB Cut-off Frequencies and Passive Component Values; Cauer Response Passive Cauer Filters; Normalized Cauer Component Values; The Cut-off Frequency; Poles and Zeroes; Frequency and Time Domain Relationship; The S-Plane; Frequency Response and the S-plane; Impulse Response and the S-plane; The Laplace Transform - Converting between Time and Frequency Domains; First Order Filters; Pole and Zero Locations; Butterworth Poles; Bessel Poles; Chebyshev Pole Locations; Inverse Chebyshev Pole and Zero Locations; Inverse Chebyshev Zero Locations; Cauer Pole and Zero Locations; Cauer Pole Zero Plot; Analog Lowpass Filters; Passive Filters; Formulae for Passive Lowpass Filter De-Normalization; De-Normalizing Passive Filters with Resonant Elements; Mains Filter Design; Active Lowpass Filters; First Order Filter Section; Sallen and Key Lowpass Filter; Denormalizing Sallen and Key Filter Designs; State Variable Lowpass Filters; Cauer and Inverse Chebyshev Active Filters; De-Normalizing State Variable or Biquad Designs; Frequency Dependant Negative Resistance (FDNR) Filters; Denormalization of FDNR Filters; Highpass Filters Passive Filters; Formulae for Passive Highpass F


No. of pages:
© 2002
Print ISBN:
Electronic ISBN:

Reviews aid to practical filter design by engineers. -Microwave Journal, 2003