Detail publikace

Non-Integer-Order Low-Pass Filter with Electronically Controllable Parameters

Originální název

Non-Integer-Order Low-Pass Filter with Electronically Controllable Parameters

Anglický název

Non-Integer-Order Low-Pass Filter with Electronically Controllable Parameters

Jazyk

en

Originální abstrakt

In this paper, a new non-integer-order (fractionalorder) low-pass filter with independent electronic control of the order, quality factor and pole frequency is presented. The filter operates in the current mode and it consists of Operational Transconductance Amplifiers (OTAs) and Adjustable Current Followers (ACAs) employed as active elements. The values of noninteger order, quality factor and pole frequency of the filter are controlled by the internal and electronically controllable parameters of the used active elements (transconductance, current gain in our case). The proposed filter allows tunability of the pole frequency in range from 43.0 to 364.0 kHz. The filter order is controlled from 1.17 to 1.75 and finally it provides possibility to control quality factor from 0.64 to 1.9. Features of the proposed circuit are verified by PSpice simulations using transistor-level simulation models of the active elements.

Anglický abstrakt

In this paper, a new non-integer-order (fractionalorder) low-pass filter with independent electronic control of the order, quality factor and pole frequency is presented. The filter operates in the current mode and it consists of Operational Transconductance Amplifiers (OTAs) and Adjustable Current Followers (ACAs) employed as active elements. The values of noninteger order, quality factor and pole frequency of the filter are controlled by the internal and electronically controllable parameters of the used active elements (transconductance, current gain in our case). The proposed filter allows tunability of the pole frequency in range from 43.0 to 364.0 kHz. The filter order is controlled from 1.17 to 1.75 and finally it provides possibility to control quality factor from 0.64 to 1.9. Features of the proposed circuit are verified by PSpice simulations using transistor-level simulation models of the active elements.

BibTex


@inproceedings{BUT145372,
  author="Jan {Dvořák} and Zuzana {Bečková} and Jan {Jeřábek} and Lukáš {Langhammer} and Aslihan {Kartci} and Jaroslav {Koton}",
  title="Non-Integer-Order Low-Pass Filter with Electronically Controllable Parameters",
  annote="In this paper, a new non-integer-order (fractionalorder) low-pass filter with independent electronic control of the order, quality factor and pole frequency is presented. The filter operates in the current mode and it consists of Operational Transconductance Amplifiers (OTAs) and Adjustable Current Followers (ACAs) employed as active elements. The values of noninteger order, quality factor and pole frequency of the filter are controlled by the internal and electronically controllable parameters of the used active elements (transconductance, current gain in our case). The proposed filter allows tunability of the pole frequency in range from 43.0 to 364.0 kHz. The filter order is controlled from 1.17 to 1.75 and finally it provides possibility to control quality factor from 0.64 to 1.9. Features of the proposed circuit are verified by PSpice simulations using transistor-level simulation models of the active elements.",
  booktitle="2018 IEEE International Symposium on Circuits and Systems (ISCAS)",
  chapter="145372",
  doi="10.1109/ISCAS.2018.8351488",
  howpublished="online",
  year="2018",
  month="may",
  pages="1--5",
  type="conference paper"
}