Analog filters
著者
書誌事項
Analog filters
Chapman & Hall, 1996
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注記
Includes bibligraphical references (p. [355]-357) and index
内容説明・目次
内容説明
Analog filters are commonly used in areas such as communications, control and signal processing, and engineers and students in such areas require an understanding of basic filter theory. Some existing books on filters design are written from the perspective of network theorists and fail to address the needs of those wishing to design and apply filters in electronic systems. This book is designed for advanced students and engineers who need to use analog filters. It introduces the theory behind filter development and the design techniques commonly used in practice, including the application of standard software packages.
目次
The analog filter. Ideal and approximate filter characteristics. Normalization and denormalization - scaling. Steps involved in the design of filters. The Approximation. The Butterworth lowpass characteristic. The Chebyshev lowpass characteristic. Other magnitude characteristics related to Chebyshev lowpass characteristic. The elliptic-function filter characteristics. Comparison of standard lowpass characteristics. Network Functions for filters. General method of obtaining H(a) for a given H(jw). Network function of Butterworth filters. Network funciton of Chebyshev filters. Network function of elliptic-function filters. Frequency transformation. Lowpass to highpass transformation. Lowpass to bandpass transformation. Lowpass to bandreject transformation. RC-RC transformation. Topics in network theory relevant to filters. The driving-point impedance of LC network - the reaction function. The LC twoport. The RC threeport. Realization of singly-terminated LC ladder. Realization of doubly-terminated LC ladder. Sensitivity. Definition of classical sensitivity. Properties of the first-order sensitivity. Sensitivity calculation. The pole sensitivity and root sensitivity. Basics of active filters. Fundamental differences in passive and active filter realization. The cascade of low-order active filter blocks. Simple first-order active circuits. Relationship of voltage gain and the parameters of an RC threeport. Gain adjustments. Single-amplifier biquad circuits. Modified single-amplifier biquad and coupled biquads. Multiple-amplifier active filter blocks and filters. Direct realization of active filters. Two-port matrices of some active devices. The generalized impedance converter (GIC). Simulation of grounded conductors. Simulation of floating conductors. Simulation of an inductor group. The frequency-dependent negative resistor (FDNR). Filter simulation of passive filters. Simulation of bandpass filters.
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