Recent Progress in Optimization of Multiband Electrical Filters

Andrei Bogatyrëv
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Andrei Bogatyrëv: Russian Academy of Sciences

A chapter in Approximation and Optimization, 2019, pp 135-149 from Springer

Abstract: Abstract The best uniform rational approximation of the sign function on two intervals was explicitly found by Russian mathematician E.I. Zolotarëv in 1877. The progress in math eventually led to the progress in technology: half a century later German electrical engineer and physicist W. Cauer on the basis of this solution has invented low- and high-pass electrical filters known today as elliptic or Cauer-Zolotarëv filters and possessing the unbeatable quality. We discuss a recently developed approach for the solution of optimization problem naturally arising in the synthesis of multi-band (analogue, digital or microwave) electrical filters. The approach is based on techniques from algebraic geometry and generalizes the effective representation of Zolotarëv fraction.

Date: 2019
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Persistent link: https://EconPapers.repec.org/RePEc:spr:spochp:978-3-030-12767-1_8

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DOI: 10.1007/978-3-030-12767-1_8

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