ANALOG FILTERS

Le Monde En Tique

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Ouvrage 0-412-63840-1 : ANALOG FILTERS
Analog filters are commonly used in areas such as electronics, communications, controls and signal processing. It is desirable for engineers and students in these areas to have a sound understanding of basic filter theory. This book is intended to be an intermediate level treatment of this subject. It can be used both as a textbook in a course or at either the undergraduate or graduate level, and as a reference for engineers who find it useful to have an introductory knowlege or a general overview of analog filters. It introduces the theory behind filter development and the design techniques commonly used in practice, including the application of standard software packages. Extensive use is made of MATLAB for examples and problem sets, allowing readers to acquire familiarity with the methods for designing filters with a modern software tool.
* emphasizes physical and engineering principles * extensive examples, problem sets and illustrations * based around the use of standard software packages - allows realistic examples approach
Table of Contents
Introduction. Preliminary remarks. The analog filter. Ideal and approximate filter characteristics. MATLAB Circuit analysis. Normalization and denormalization - scaling. Steps involved in the design of filters. Problems. The approximation. The Butterworth lowpass characteristics. The Chebyshev lowpass characteristic. Other Chebyshev related characteristics. The elliptic-function filter characteristic. Comparison of standard-lowpass. Summary. Problems. Network functions. General procedure. Network functions for Butterworth filters. Network functions for Chebyshev filters. Network functions for elliptic-function filters. Bessel-Thomson filter functions. Delay equalization. Summary. Problems. Frequency transformation. Lowpass-to-highpass transformation. Lowpass-to-bandpass transformation. Lowpass-to-bandreject transformation. Summary. Problems. Properties and synthesis of passive networks. The driving-point function of a passive oneport. The driving-point function of a lossless oneport. Properties of lossless twoports. LC ladder twoport. Foster's preamble. Summary. Problems. Singly-terminated LC ladder. LC ladder with a current source. LC ladder with a voltage source. Other singly-terminated orientations. Summary. Problems. Doubly-terminated LC ladders. Basic formulation. LC ladder with equal terminations. LC ladder with unequal terminations. A doubly-terminated filter used in reverse. Summary. Problems. Sensitivity. Definition of sensitivity. Properties of first-order sensitivity. Sensitivities of network performance. Sensitivity calculation. Unnormalized sensitivity. Multiparameter and statistical sensitivites. A case for low sensitivity of passive filters. Summary. Problems. Basics of active filters. Comparison of passive and active filters. The operational amplifier (op amp). Some simple op amp circuits. First-order sections. RC single-op amp circuit relationships. Gain adjustments. RC-CR transformation. Types of biquads. Summary. Problems. Biquad circuits. Sallen-key biquads. Infinite-gain multiple-feedback (MFB) biquads. The two-integrator biquads. Summary. Problems. Higher-order active filters. The cascade realization. The state-variable method of realization. Lowpass-to-band-pass transformation. Internal gain change. Summary. Problems. Active simulation of passive filters. Some active twoports. The generalized impedance converter (GIC). Simulation of inductances in an LC ladder. Simulation using frequency dependant negative resistances (FDNR). Functional simulation of passive filters. Summary. Problems. Switched-capacitor filters. An introduction. Simulation of resistors by switched capacitors. Simple basic circuits. Switched-capacitor biquads. Functional simulations of LC ladders. Summary. Problems. Tables of filters. Bibliography. Index.

Auteur : KENDALL
Editeur : STANLEY THORNES
Nombre de pages : 384
Date de publication : 11 1995

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