Circuits, Systems, and Signal Processing

, Volume 31, Issue 1, pp 3–17 | Cite as

On the Realization of Multiphase Oscillators Using Fractional-Order Allpass Filters

  • Brent Maundy
  • Ahmed Elwakil
  • Stephan Gift


In this paper multiphase oscillators built using fractional-order allpass filters are presented. We examine the theory behind their operation and demonstrate their usefulness in the design of both multiphase and quadrature oscillators. Case design examples are given for various scenarios, while PSPICE and experimental results verify their operation


Allpass filters Fractional calculus Circuit theory Oscillators 


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© Springer Science+Business Media, LLC 2010

Authors and Affiliations

  1. 1.Department of Electrical and Computer EngineeringUniversity of CalgaryCalgaryCanada
  2. 2.Department of Electrical & Computer EngineeringUniversity of SharjahSharjahUnited Arab Emirates
  3. 3.Department of Electrical and Computer EngineeringUniversity of the West IndiesSt. AugustineTrinidad

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