Publication detail

Study of Practical Problems in Two-Loop CCTA Based Biquad: Finite Attenuations in Stop Bands

JEŘÁBEK, J. ŠOTNER, R. KINCL, Z. DOSTÁL, T. VRBA, K.

Original Title

Study of Practical Problems in Two-Loop CCTA Based Biquad: Finite Attenuations in Stop Bands

Type

conference paper

Language

English

Original Abstract

Quite neglected and underlying problem of modern active functional blocks is presented and demonstrated in this contribution on a current-mode active filter. The discussed problem is an undesirable transfer in stop band of multifunctional frequency filters. It is caused by several occasions related to small-signal parameters of active elements (impedance levels) in the circuit. In some cases it leads to parasitic feedback and undesirable transfers in circuit. Problems are discussed on example with KHN-type filter where quite novel active element known as Current Conveyor Transconductance Amplifier (CCTA) is used.

Keywords

CCTA, stop band attenuation, non-zero input impedance, finite output impedance

Authors

JEŘÁBEK, J.; ŠOTNER, R.; KINCL, Z.; DOSTÁL, T.; VRBA, K.

RIV year

2013

Released

28. 11. 2013

Publisher

The Chamber of Electrical Engineers Bursa Branch (EMO)

ISBN

978-605-01-0504-9

Book

Proceeding of the 8th International Conference on Electrical and Electronics Engineering

Pages from

40

Pages to

44

Pages count

5

BibTex

@inproceedings{BUT102988,
  author="Jan {Jeřábek} and Roman {Šotner} and Zdeněk {Kincl} and Tomáš {Dostál} and Kamil {Vrba}",
  title="Study of Practical Problems in Two-Loop CCTA Based Biquad: Finite Attenuations in Stop Bands",
  booktitle="Proceeding of the 8th International Conference on Electrical and Electronics Engineering",
  year="2013",
  pages="40--44",
  publisher="The Chamber of Electrical Engineers Bursa Branch (EMO)",
  isbn="978-605-01-0504-9"
}