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Electronic Filters, Amplifiers & Oscillators - Frequency Devices
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Analog & DSP, FIR Electronic Filters - Frequency Devices

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   Filters, Delay

Electronic filters are electronic circuits which perform signal processing functions, specifically intended to remove unwanted signal components and/or enhance wanted ones. Electronic filters or audio filters can be:

  • passive or active
  • analog or digital
  • discrete-time (sampled) or continuous-time
  • linear or non-linear
  • infinite impulse response (IIR type) or finite impulse response (FIR type)

The most common types of electronic filters are linear filters, regardless of other aspects of their design. See the article on linear filters for details on their design and analysis.



Bronze Partners
Allen Avionics, Inc.
Alpha Components
Anatech Electronics, Inc.
Arco Electronics
Communication Coil Inc.
Conductus, Inc.
Corning Frequency Control
E G & G Optoelectronics-Reticon
Electrocube, Inc.
Filtronetics, Inc.
Integrated Microwave Corporation
Integration Assocs. Inc.
JMK, Inc.
K & L Microwave, Inc.
KR Electronics, Inc.
Lark Engineering Company
Metuchen Capacitors, Inc.
Mini-Circuits
Netcom Inc.
NTK Technologies Inc.
Precision Filters, Inc.
Proxim Wireless Networks
R F MONOLITHICS INC
RCD Components, Inc.
Reactel, Inc.
RLC Electronics, Inc.
Thin Film Technology Corporation
TRAK Microwave Corporation
TTE, Incorporated
Analog & DSP, FIR Electronic Filters - Frequency Devices

 

Books
Magnitude and Delay Approximation of 1-D and 2-D Digital Filters (Digital Signal Processing)
Belle A. Shenoi

Excerpt - page 3: "... and the stopband, there is a wide variety of other filters designed and used for signal ... and/or to equalize the group delay of a filter or a system, such that the magnitude ..."
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Principles of Adaptive Filters and Self-learning Systems (Advanced Textbooks in Control and Signal Processing)
Anthony Zaknich

Excerpt - page 6: "... I.I. FIR Transversal Structure y[n] To design a real FIR filter, Equation 1.1 must be converted ... input signal values in the delay line by the filter coefficients, b[k], and a means for ..."
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Active Filter Cookbook, Second Edition
DON LANCASTER

Excerpt - page 18: "... Frequency-The cutoff frequency is the final point at which the filter response drops 3 dB or ... or the amount of filter delay. Damping-The damping of a second-order filter section is an index ..."
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Introduction to Digital Signal Processing and Filter Design
B. A. Shenoi

Excerpt - page 149: "... (H) . The phase response (in radi- ans) of the filter is obtained from the function ph=angle (h), and then we can use Ph=unwrap (ph) to unwrap the phase response so that the phase angle lies between 0 and 2,7. The group delay of the filter is computed by the MATLAB function grpdelay ..."
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Microwave Filters, Impedance-Matching Networks, and Coupling Structures (Artech Microwave Library)
G. Matthaei, E.M.T. Jones, and L. Young

Excerpt - page 83: "... are to make clear the properties of the tabulated prototype filters, delay networks, and impedance-matching networks so that they may be used ..."
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Adaptive Filters Theory and Applications
B. Farhang-Boroujeny

Excerpt - page 3: "... use the result in a recursive equation to adjust the filter coefficients iteratively. The reasons for ... non-iterative solutions, introduces a large delay in the filter output. This is unacceptable in many applications. ..."
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Analog Filters
Kendall L. Su, K. L. Su, and Su

Excerpt - page 66: "... it is generally accepted that, for audio applications, the different delays for signals of different frequencies ... be distorted. One standard lowpass filter that focuses on the delay of the filter at low ..."
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Practical Analog And Digital Filter Design (Artech House Microwave Library)
Les Thede

Excerpt - page 6: "... filter. 1.2 FILTER APPROXIMATION The response of an ideal lowpass filter is shown in Figure 1.5, ... cost of the filter (time delay, number of elements, dollars, power consumption, etc.) will increase. These ..."
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Analog and Digital Filter Design, Second Edition (EDN Series for Design Engineers)
Steve Winder

Excerpt - page 45: "... see a phase shift of 72hich is also a delay of 0.1 ms (the period ... of a nonconstant group delay filter would be one where the 1 kHz signal is delayed ..."
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Theory and Design of Microwave Filters (Ieee Electromagnetic Waves Series)
Ian C. Hunter

Excerpt - page 6: "... peak occurring at k s, which is the passband group delay of the filter. This is shown in Figure 1.6. Here we can see ..."
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The Circuits and Filters Handbook, Second Edition
Wai-Kai Chen

Excerpt - page 131: "... k=0 The function H(z) is often referred to as a filter. If the denominator is a delay, i.e., biz-', such a filter will be a finite impulse ..."
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Microstrip Filters for RF/Microwave Applications
Jia-Shen G. Hong and M. J. Lancaster

Excerpt - page 4: "... design with less design iterations, leading to first-pass or tuneless filters. This chapter discusses computer simulation ... linear phase filters for group delay equalization , and extracted-pole filters. These types of filters, which ..."
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Adaptive Filter Theory (3rd Edition)
Simon S. Haykin and Simon Haykin

Excerpt - page 83: "... FIR and IIR filters, respectively. The boxes labeled z-' represent unit-delay elements, and the circles labeled a1,a2, ... aN represent filter coefficients. Note that the FIR filter of Fig. 1.1(a) involves ..."
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Digital Filters: Basics and Design
Dietrich Schlichtharle

Excerpt - page 7: "... By differentiation of the phase response, we obtain the group delay of the filter. db(w)_ 1/a zg(w) do) 1+w2 /a2 1.3 Transfer Functions The ..."
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Digital Filter Design (Topics in Digital Signal Processing)
T. W. Parks and C. S. Burrus

Excerpt - page 27: "... - 1)/2, which can be viewed as an average time delay for the filter. For the even-length filter this delay is not an integer ..."
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Continuous-Time Active Filter Design
T. Deliyannis, Yichuang Sun, and J.K. Fidler

Excerpt - page 24: "... figures of merit in comparing the transient response of various filters. The delay time r,, is equal to the delay the signal experiences ..."
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Design of Analog Filters
Rolf Schaumann and Mac E. Van Valkenburg

Excerpt - page 1: "... device used to provide gain in the design of active filters. The other gain device is the transconductor or operational transconductance amplifier (OTA). It is used mainly in filters for very high frequencies. We will delay the discussion of OTAs and OTA circuits until Chapter 16. ..."
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CRC Handbook of Electrical Filters
John Taylor and Qiuting Huang

Excerpt - page 24: "... 3. Stand-alone optimizing preprocessor-This is used when passband loss (and delay) and stopband loss are of ... - To equalize a given filter delay, we need still another optimization procedure. This one adds ..."
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Digital Filters and Signal Processing... with MATLAB Exercises
Leland B. Jackson

Excerpt - page 67: "... number of zeros; and this cannot exceed the number of delays in the filter implementation. MATLAB Exercise No. 4-Simple-Averaging FIR Filters An old technique ..."
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Optical Filter Design and Analysis: A Signal Processing Approach (Wiley Series in Microwave and Optical Engineering)
Christi K. Madsen and Jian H. Zhao

Excerpt - page 16: "... 15. D. Davies and G. James, "Fibre-optic tapped delay line filter employing coherent optical processing," Electron. Lett., vol. 20, pp. 96-97, ..."
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Design and Analysis of Analog Filters - A Signal Processing Perspective (The Kluwer International Series in Engineering and Computer Science, Volume 617) ... Series in Engineering and Computer Science)
Larry D. Paarmann

Excerpt - page 16: "... 1992), and by significantly reducing the complexity of designing elliptic filters without reference to elliptic functions (Lutovac and Rabrenovic, 1992). Constant Time-Delay Design Whereas Bessel filters are designed for a maximally-flat time ..."
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An Introduction to Parametric Digital Filters and Oscillators
Mikhail Cherniakov

Excerpt - page 20: "... DLSs with N > 1 are called recursive filters or filters with infinite impulse response (IIR). Value N, equal to the number of delay elements in the filter, is called the order of the ..."
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Multirate Digital Signal Processing: Multirate Systems - Filter Banks - Wavelets
N. J. Fliege

Excerpt - page 57: "... (N - 1)/2. In the frequency response of the complementary filter, this delay can be taken out as a factor. Allowing for (2.58), ..."
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Mathematics for Circuits and Filters
Wai-Kai Chen

Excerpt - page 125: "... k-0 The function H(z) is often referred to as a filter. If the denominator is a delay, i.e., biz-`, such a filter will be a finite impulse ..."
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Least-Mean-Square Adaptive Filters (Adaptive and Learning Systems for Signal Processing, Communications and Control Series)
Simon Haykin and B. Widrow

Excerpt - page 35: "... 2.1 INTRODUCTION This chapter is concerned with least-mean-square (LMS) adaptive filters containing tapped-delay lines of great length. Such "long" filters deserve a separate ..."
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Multidimensional Filter Banks and Wavelets: Basic Theory and Cosine Modulated Filter Banks
Sankar Basu and Bernard C. Levy

Excerpt - page 8: "... (z), called the distortion function. If T (z) is a delay, the alias-free filter bank is said to have perfect reconstruction. The simplest way ..."
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DSP System Design: Complexity Reduced IIR Filter Implementation for Practical Applications
Artur Krukowski and Izzet Kale

Excerpt - page 7: "... it phase jumps occur. As they only occur in the filter stopband, they do not cause any problems for the signal frequencies in the filter passband. The group delay function for the example seventh-order lowpass filter is presented in ..."
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Two-dimensional Digital Filters (Electrical and Computer Engineering)
Wu-Sheng Lu

Excerpt - page 54: "... of the type shown in Fig. Pl.5a that implements the filter, where F, is independent of delay element T, and F, is independent of delay element T,. ..."
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Filter Design with Time Domain Mask Constraints: Theory and Applications (Applied Optimization)
Ba-Ngu Vo, Antonio Cantoni, and Kok Lay Teo

Excerpt - page 37: "... U(s) = lO;rlOj(s). i=0 j=0 The best known examples of filters employing the transversal structure are Legendre or Laguerre filters or when the O;'s are pure delay elements, which is a limiting case of the latter. These ..."
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Digital Signal Processing: Spectral Computation and Filter Design (The Oxford Series in Electrical and Computer Engineering)
Chi-Tsong Chen

Excerpt - page 258: "... (b) Group delay. _ d9 (w) i(w) dco The group delay of the ideal low-pass filter in (6.1) equals no because 0(a)) = -now. This is ..."
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Signal Analysis: Wavelets, Filter Banks, Time-Frequency Transforms and Applications
Alfred Mertins

Excerpt - page 160: "... (z) = z-26-1 + z-2aB(z2) + z-1.4(z2)B(z2). Now the overall delay is 2a + 2b + 1 with a, b > 0. Note that, although we may already have relatively long filters Ho (z) and H, (z), the delay may be unchanged ..."
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Understand Electronic Filters
Owen Bishop

Excerpt - page 77: "... 25.000 30.000 seconds Figure 5.10 The effect of a low-pass filter on a sawtooth signal is to reduce its amplitude, round off some of the corners and introduce a phase delay ..."
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Handbook of Filter Synthesis
Anatol I. Zverev

Excerpt - page 6: "... any complexity are used only in the initial step of filter design where their properties along ... the form of a simple delay line. 1.4 PROPERTIES OF LATTICE FILTERS A lattice network can ..."
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Robust Control and Filtering for Time-Delay Systems (Control Engineering (Marcel Dekker), 5.)
Mahmoud

Excerpt - page 19: "... II, the main focus on state-estimation (filtering) where robust Kalman filter is developed for uncertain linear time-delay systems (Chapter 8), robust floe filtering are constructed for linear ..."
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Design of High Frequency Integrated Analogue Filters (Iee Circuits, Devices and Systems Series, 14)
Yichuang Sun

Excerpt - page 25: "... 23-261 as discussed in Section 2.4.2. For example, a seventh-order filter with equiripple group delay and 3 dB gain-boost zeros and a tenth-order equaliser based ..."
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EMI Filter Design Second Edition Revised and Expanded (Electrical and Computer Engineering)
Richard Lee Ozenbaugh

Excerpt - page 3: "... this book. These techniques would upset most of the normal filter, or wave filter, designers. The ... speak of poles, zeros, group delay, predistortion, attenuation, and terms such as the order of the ..."
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