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Log-Domain Filter Design Based on Impedance Scaling of LC Ladder Structures

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Abstract

In this paper, a log-domain filter design based on an impedance scaling technique of passive LC ladder structures is considered. To this end a general circuit for the simulation of any kind of two-terminal component, both grounded and floating, is presented. Depending on the kind of filter, the proposed technique can produce implementation advantages by reducing the number of required components. The validity of the approach is demonstrated through the simulation of a fifth-order LC ladder elliptic low-pass filter.

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Authors and Affiliations

  1. Department of Electronics and Telecommunications, University of Florence, Via S. Marta 3, 50139, Firenze, Italy

    Stefano Manetti & Maria Cristina Piccirilli

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  1. Stefano Manetti
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  2. Maria Cristina Piccirilli
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Correspondence to Stefano Manetti.

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Manetti, S., Piccirilli, M.C. Log-Domain Filter Design Based on Impedance Scaling of LC Ladder Structures. Circuits Syst Signal Process 30, 371–389 (2011). https://doi.org/10.1007/s00034-010-9227-z

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  • DOI: https://doi.org/10.1007/s00034-010-9227-z

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