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Practical Design and Evaluation of Fractional-Order Oscillator Using Differential Voltage Current Conveyors

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Abstract

This paper deals with the design, analysis, computer simulation, and experimental measurement of fractional-order sinusoidal oscillator with two current conveyors, two resistors, and two fractional immittance elements. The used conveyor is based on the bulk-driven quasi-floating-gate technique in order to offer high threshold-to-supply voltage ratio and maximum input-to-supply voltage ratio. The supply voltage of the oscillator is 1 V, and the power consumption is \(74\,\upmu \hbox {W}\), and hence the proposed oscillator can be suitable for biomedical, portable, battery-powered, and other applications where the low-power consumption is critical. A number of equations along with graphs describing the theoretical properties of the oscillator are presented. The unique features of fractional-order oscillator are highlighted considering practical utilization, element computation, tuning, phase shift of output signals, sensitivities, etc. The simulations performed in the Cadence environment and the measurements of a real chip confirm the attractive features of the proposed oscillator.

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Acknowledgments

Research described in this paper was financed by the National Sustainability Program under Grant LO1401 and by the Czech Science Foundation under Grant No. P102-15-21942S. For the research, infrastructure of the SIX Center was used. Also it was supported by Grant E.029 from the Research Committee of the University of Patras (Programme K. Karatheodori).

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Authors and Affiliations

  1. Department of Telecommunications, Brno University of Technology, Technická 12, Brno, Czech Republic

    David Kubánek

  2. Department of Microelectronics, Brno University of Technology, Technicka 10, Brno, Czech Republic

    Fabian Khateb

  3. Faculty of Biomedical Engineering, Czech Technical University in Prague, nám. Sítná 3105, Kladno, Czech Republic

    Fabian Khateb

  4. Electronics Laboratory, Physics Department, University of Patras, 26504, Rio Patras, Greece

    Georgia Tsirimokou & Costas Psychalinos

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  1. David Kubánek
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Correspondence to Fabian Khateb.

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Kubánek, D., Khateb, F., Tsirimokou, G. et al. Practical Design and Evaluation of Fractional-Order Oscillator Using Differential Voltage Current Conveyors. Circuits Syst Signal Process 35, 2003–2016 (2016). https://doi.org/10.1007/s00034-016-0243-5

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