Publication detail

Multifunctional Electronically Reconfigurable and Tunable Fractional-Order Filter

DVOŘÁK, J. JEŘÁBEK, J. POLEŠÁKOVÁ, Z. KUBÁNEK, D. BLAŽEK, P.

Original Title

Multifunctional Electronically Reconfigurable and Tunable Fractional-Order Filter

English Title

Multifunctional Electronically Reconfigurable and Tunable Fractional-Order Filter

Type

journal article in Web of Science

Language

en

Original Abstract

In this paper the authors present a multifunctional reconfigurable fractional-order filter performing a low-pass, high-pass, band-pass and band-reject transfer function. The filter is based on two types of active elements, OTA (Operational Transconductance Amplifier) and ACA (Adjustable Current Amplifier). It provides pole frequency control, depending on the values of the transconductance of the OTA elements. The quality factor is also electronically controlled, depending on the amplification of the ACA element. The order of the filter can be changed by switching the fractional-order capacitor having various values of the order. The circuit was implemented as a PCB (Printed Circuit Board) and measured in laboratory conditions. Measurement results are compared with the simulation results. The behavioural models were used for the purpose of the simulation.

English abstract

In this paper the authors present a multifunctional reconfigurable fractional-order filter performing a low-pass, high-pass, band-pass and band-reject transfer function. The filter is based on two types of active elements, OTA (Operational Transconductance Amplifier) and ACA (Adjustable Current Amplifier). It provides pole frequency control, depending on the values of the transconductance of the OTA elements. The quality factor is also electronically controlled, depending on the amplification of the ACA element. The order of the filter can be changed by switching the fractional-order capacitor having various values of the order. The circuit was implemented as a PCB (Printed Circuit Board) and measured in laboratory conditions. Measurement results are compared with the simulation results. The behavioural models were used for the purpose of the simulation.

Keywords

fractional-order element; analogue filter; quality factor control; pole frequency control; DACA; OTA

Released

11.02.2019

Publisher

Kaunas University of Technology

Location

Kaunas, Litva

Pages from

26

Pages to

30

Pages count

5

URL

Full text in the Digital Library

BibTex


@article{BUT146595,
  author="Jan {Dvořák} and Jan {Jeřábek} and Zuzana {Bečková} and David {Kubánek} and Petr {Blažek}",
  title="Multifunctional Electronically Reconfigurable and Tunable Fractional-Order Filter",
  annote="In this paper the authors present a multifunctional reconfigurable fractional-order filter performing a low-pass, high-pass, band-pass and band-reject transfer function. The filter is based on two types of active elements, OTA (Operational Transconductance Amplifier) and ACA (Adjustable Current Amplifier). It provides pole frequency control, depending on the values of the transconductance of the OTA elements. The quality factor is also electronically controlled, depending on the amplification of the ACA element. The order of the filter can be changed by switching the fractional-order capacitor having various values of the order. The circuit was implemented as a PCB (Printed Circuit Board) and measured in laboratory conditions. Measurement results are compared with the simulation results. The behavioural models were used for the purpose of the simulation.",
  address="Kaunas University of Technology",
  chapter="146595",
  doi="10.5755/j01.eie.25.1.22732",
  howpublished="online",
  institution="Kaunas University of Technology",
  number="1",
  volume="25",
  year="2019",
  month="february",
  pages="26--30",
  publisher="Kaunas University of Technology",
  type="journal article in Web of Science"
}