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Optimal Gain Overdesign in Analog Filters

  • Antônio C. M. De Queiroz
  • Luiz P. Calôba
Chapter

Abstract

This paper presents a method for the overdesign of gain-shaping filters in an optimal way. The passband minima and the stopband maxima of a filter approximation are adjusted using an iterative method, with the objective of obtaining a circuit that satisfies exactly the specifications when the statistical deviation in the filter transfer function due to errors on its components is considered. The result is a filter that can be significantly more selective than what is obtained by a simpler overdesign method that results in an equal-ripple ideal design. Two different approaches are examined, one based in the development of a special approximation followed by synthesis, and the other by direct optimization of an initial classical design.

Keywords

Gain Curve Filter Structure Analog Filter Optimal Gain Transmission Zero 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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References

  1. 1.
    Orchard, H. J., “Inductorless filters,” Electronics Letters, Vol. 2, pp. 224–225, June 1966. Optimal Gain Overdesign in Analog FiltersGoogle Scholar
  2. 2.
    Fidler, J. K. and Nightingale, C., “Slope-normalized sensitivity: A new sensitivity measure,” Electronics Letters, Vol. 15, pp. 54–56, January 1979.CrossRefGoogle Scholar
  3. 3.
    de Queiroz, A. C. M. and Calôba, L. P., “Physically symmetrical and antimetrical ladder filters with finite transmission zeros,” Proc. 30th MWSCAS, Syracuse, USA, pp. 639–643, 1987.Google Scholar
  4. 4.
    de Queiroz, A. C. M. and Calôba, L. P., “An approximation algorithm for irregular-ripple filters,” Proc. STB/IEEE International Telecommunications Symposium, Rio de Janeiro, Brazil, pp. 430–433, 1990.Google Scholar

Copyright information

© Springer Science+Business Media New York 1994

Authors and Affiliations

  • Antônio C. M. De Queiroz
    • 1
  • Luiz P. Calôba
    • 1
  1. 1.COPPE/EEUniversidade Federal do Rio de JaneiroRio de JaneiroBrazil

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