Practical Design of Fractional-Order Resonator for Application in the Multiphase Oscillator
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This contribution introduces a new simple electronically adjustable resonator for implementation in design of the fractional-order multiphase oscillator created with parallel connection of this resonator and negative resistor. The circuit may operate in single-ended or differential/pseudo-differential mode using integer and fractional-order capacitor. Design example is provided for generation of signals with ideal phase shifts equal to 22.5, 157.5 and 180 degrees in the operating frequency band of 47 kHz – 275 kHz with simple tuning of a single parameter. The features of the circuit were verified by PSpice simulations using suitable models and building blocks. Results confirmed expected behavior
KeywordsConstant phase element, electronic tuning, fractional-order, multiphase oscillator, resonator.
Document typePeer reviewed
SourceProceedings of 2020 27th IEEE International Conference on Electronics, Circuits and Systems (ICECS). 2020, p. 1-4.