Publication detail

Integer- and Fractional-Order VCO Using Non-Inertial Amplitude Stabilization and Modern Active Elements

ŠOTNER, R. PETRŽELA, J. JEŘÁBEK, J. LANGHAMMER, L. POLÁK, J. JAIKLA, W. TUNTRAKOOL, S.

Original Title

Integer- and Fractional-Order VCO Using Non-Inertial Amplitude Stabilization and Modern Active Elements

English Title

Integer- and Fractional-Order VCO Using Non-Inertial Amplitude Stabilization and Modern Active Elements

Type

journal article in Web of Science

Language

en

Original Abstract

This paper introduces design of the linearly tunable quadrature voltage-controlled oscillator (VCO) using modern off-the-shelf active elements suitable for the design of electronically adjustable applications. The simplified topology was achieved using non-inertial stabilization of amplitude. It allows targeting adjustability of the oscillation frequency only into lossless integrator part of the topology. This arrangement simplifies the design and the tenability also. Derived symbolical expressions indicate that gain adjustment of used amplifiers (that are still in single path) does not influence amplitude and phase shift ratio of generated waveforms, which is a beneficial feature. The performances of the circuit are tested experimentally in band of units of MHz and results confirmed expected behavior. Initial study of the oscillator with fractional-order capacitors is presented and discussed. Results are supported by laboratory measurements.

English abstract

This paper introduces design of the linearly tunable quadrature voltage-controlled oscillator (VCO) using modern off-the-shelf active elements suitable for the design of electronically adjustable applications. The simplified topology was achieved using non-inertial stabilization of amplitude. It allows targeting adjustability of the oscillation frequency only into lossless integrator part of the topology. This arrangement simplifies the design and the tenability also. Derived symbolical expressions indicate that gain adjustment of used amplifiers (that are still in single path) does not influence amplitude and phase shift ratio of generated waveforms, which is a beneficial feature. The performances of the circuit are tested experimentally in band of units of MHz and results confirmed expected behavior. Initial study of the oscillator with fractional-order capacitors is presented and discussed. Results are supported by laboratory measurements.

Keywords

Diamond transistors; Electronic adjusting; Fractional-order; Modern active devices; Quadrature output; Tuning; Voltage controlled oscillator; Voltage-mode multipliers

Released

25.04.2020

Publisher

Kaunas University of Technology

Location

KAUNAS

Pages from

42

Pages to

47

Pages count

6

URL

Full text in the Digital Library

BibTex


@article{BUT164209,
  author="Roman {Šotner} and Jiří {Petržela} and Jan {Jeřábek} and Lukáš {Langhammer} and Josef {Polák} and Winai {Jaikla} and Sunti {Tuntrakool}",
  title="Integer- and Fractional-Order VCO Using Non-Inertial Amplitude Stabilization and Modern Active Elements",
  annote="This paper introduces design of the linearly tunable quadrature voltage-controlled oscillator (VCO) using modern off-the-shelf active elements suitable for the design of electronically adjustable applications. The simplified topology was achieved using non-inertial stabilization of amplitude. It allows targeting adjustability of the oscillation frequency only into lossless integrator part of the topology. This arrangement simplifies the design and the tenability also. Derived symbolical expressions indicate that gain adjustment of used amplifiers (that are still in single path) does not influence amplitude and phase shift ratio of generated waveforms, which is a beneficial feature. The performances of the circuit are tested experimentally in band of units of MHz and results confirmed expected behavior. Initial study of the oscillator with fractional-order capacitors is presented and discussed. Results are supported by laboratory measurements.",
  address="Kaunas University of Technology",
  chapter="164209",
  doi="10.5755/j01.eie.26.2.25903",
  howpublished="online",
  institution="Kaunas University of Technology",
  number="2",
  volume="26",
  year="2020",
  month="april",
  pages="42--47",
  publisher="Kaunas University of Technology",
  type="journal article in Web of Science"
}