Publication detail

Fractional-Order Low-Pass Filter with Electronically Adjustable Parameters

JEŘÁBEK, J. ŠOTNER, R. KUBÁNEK, D. DVOŘÁK, J. LANGHAMMER, L. HERENCSÁR, N. VRBA, K.

Original Title

Fractional-Order Low-Pass Filter with Electronically Adjustable Parameters

Czech Title

Filtr typu dolní propust fraktálního řádu s elektronicky řiditelnými parametry

English Title

Fractional-Order Low-Pass Filter with Electronically Adjustable Parameters

Type

conference paper

Language

en

Original Abstract

This paper presents possible solution of fractional-order low-pass filter (FLPF) with electronically adjustable order between 1 and 2 and with also electronically adjustable pole frequency. It is based on well-known follow-the-leader feedback (FLF) topology adjusted in our case for utilization with operational transconductance amplifiers (OTAs) and adjustable current amplifiers (ACAs). This 3rd-order topology is used in order to approximate FLPF response in particular frequency band of interest. Design is supported by Pspice simulations for three particular values of order of the filter (1.3, 1.5, 1.7) and for several values of pole frequency.

Czech abstract

Tento článek prezentuje možné řešení filtru typu dolní propust fraktálního řádu (FLPF) s elektronicky nastavitelným řádem mezi 1 a 2 a také elektronicky nastavitelnou frekvencí pólu. Je založena na znamé topologii follow-the-leader (FLF) upravené pro využití transkonduktančních operačních zesilovačů (OTAs) a nastavitelných proudových zesilovačů (ACAs). Tato topologie třetího řádu se používá pro aproximaci FLPF odezvy v konkrétním frekvenčním pásmu zájmu. Návrh je podpořen Pspice simulací pro tři konkrétní hodnoty řadu tohoto filtrů (1.3, 1.5, 1.7) a několik hodnot frekvence pólu.

English abstract

This paper presents possible solution of fractional-order low-pass filter (FLPF) with electronically adjustable order between 1 and 2 and with also electronically adjustable pole frequency. It is based on well-known follow-the-leader feedback (FLF) topology adjusted in our case for utilization with operational transconductance amplifiers (OTAs) and adjustable current amplifiers (ACAs). This 3rd-order topology is used in order to approximate FLPF response in particular frequency band of interest. Design is supported by Pspice simulations for three particular values of order of the filter (1.3, 1.5, 1.7) and for several values of pole frequency.

Keywords

adjustable current amplifier; ACA; FLPF; FLF; follow-the-leader feedback; fractional-order; operational transconductance amplifier

Released

27.06.2016

ISBN

978-1-5090-1287-9

Book

Proceedings of 2016 39th International Conference on Telecommunications and Signal Processing (TSP)

Pages from

569

Pages to

574

Pages count

6

BibTex


@inproceedings{BUT126487,
  author="Jan {Jeřábek} and Roman {Šotner} and David {Kubánek} and Jan {Dvořák} and Lukáš {Langhammer} and Norbert {Herencsár} and Kamil {Vrba}",
  title="Fractional-Order Low-Pass Filter with Electronically Adjustable Parameters",
  annote="This paper presents possible solution of fractional-order low-pass filter (FLPF) with electronically adjustable order between 1 and 2 and with also electronically adjustable pole frequency. It is based on well-known follow-the-leader feedback (FLF) topology adjusted in our case for utilization with operational transconductance amplifiers (OTAs) and adjustable current amplifiers (ACAs). This 3rd-order topology is used in order to approximate FLPF response in particular frequency band of interest. Design is supported by Pspice simulations for three particular values of order of the filter (1.3, 1.5, 1.7) and for several values of pole frequency.",
  booktitle="Proceedings of 2016 39th International Conference on Telecommunications and Signal Processing (TSP)",
  chapter="126487",
  howpublished="electronic, physical medium",
  year="2016",
  month="june",
  pages="569--574",
  type="conference paper"
}