Publication detail

On the performance of electronically tunable fractional-order oscillator using grounded resonator concept

ŠOTNER, R. JEŘÁBEK, J. POLÁK, L. LANGHAMMER, L. STOLAŘOVÁ, H. PETRŽELA, J. ANDRIUKAITIS, D. VALINEVICIUS, A.

Original Title

On the performance of electronically tunable fractional-order oscillator using grounded resonator concept

Type

journal article in Web of Science

Language

English

Original Abstract

Recent works target the design of fractional-order oscillators. However, some features of such circuits are not frequently considered in the design despite their importance in practice. This work provides an analysis of the fractional-order oscillator design procedure with a simple but still beneficial electronic tuning feature. The presented design allows us to keep a stable and non-standard phase shift between produced harmonic signals while tuning the oscillation frequency of the oscillator. Grounded fractional-order elements and modern commercially available active elements are implemented in the designed topology. Time domain results as well as spectral analysis are obtained from experimental measurements. Moreover, several values of non-standard phase shifts are tested. The experimental verification targets the low-frequency bandwidth from several hundreds Hz up to several kHz because of possible application areas in these bands (audio) and due to a very low-impedance character of the used RC constant phase elements as approximants of fractional-order capacitors.

Keywords

Constant-phase element; Electronic adjusting; Fractional-order; Oscillator; Phase shift; Tuning

Authors

ŠOTNER, R.; JEŘÁBEK, J.; POLÁK, L.; LANGHAMMER, L.; STOLAŘOVÁ, H.; PETRŽELA, J.; ANDRIUKAITIS, D.; VALINEVICIUS, A.

Released

20. 2. 2021

Publisher

Elsevier

Location

MUNICH

ISBN

1434-8411

Periodical

AEU - International Journal of Electronics and Communications

Year of study

129

Number

2

State

Federal Republic of Germany

Pages from

1

Pages to

17

Pages count

17

URL

https://www.sciencedirect.com/science/article/pii/S1434841120313261

Full text in the Digital Library

http://hdl.handle.net/11012/196352

BibTex

@article{BUT169675,
  author="Roman {Šotner} and Jan {Jeřábek} and Ladislav {Polák} and Lukáš {Langhammer} and Hana {Stolařová} and Jiří {Petržela} and Darius {Andriukaitis} and Algimantas {Valinevicius}",
  title="On the performance of electronically tunable fractional-order oscillator using grounded resonator concept",
  journal="AEU - International Journal of Electronics and Communications",
  year="2021",
  volume="129",
  number="2",
  pages="1--17",
  doi="10.1016/j.aeue.2020.153540",
  issn="1434-8411",
  url="https://www.sciencedirect.com/science/article/pii/S1434841120313261"
}