Title | ||
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Emulation of current excited fractional-order capacitors and inductors using OTA topologies. |
Abstract | ||
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A novel topology suitable for emulating fractional-order capacitors and inductors using current excitation is achieved using a fractional-order differentiator/integrator block and appropriately configured Operational Transconductance Amplifiers. The scheme is capable of emulating both fractional-order capacitors and fractional-order inductors without any modifications to its structure. This implementation allows for electronic tuning of the order, capacitance/inductance, and bandwidth of operation by modification of only the bias current. Post-layout simulation results of the impedance magnitude and phase confirm the correct emulated behavior of both fractional-order capacitors and inductors. Two examples highlight the applications of this topology in i) realizing a fractional-order bandpass filter and ii) emulating a Cole-impedance model for biological applications. For both examples the characteristics of each circuit are validated in simulation. |
Year | DOI | Venue |
---|---|---|
2016 | 10.1016/j.mejo.2016.06.008 | Microelectronics Journal |
Keywords | Field | DocType |
Fractional-order capacitor,Fractional-order inductor,Analog signal processing circuits,MOS integrated circuits,Fractional-order circuits | Inductance,Capacitor,Filter capacitor,Differentiator,Integrator,Inductor,Electronic engineering,Electrical impedance,Equivalent series resistance,Engineering,Electrical engineering | Journal |
Volume | Issue | ISSN |
55 | C | 0026-2692 |
Citations | PageRank | References |
7 | 0.65 | 12 |
Authors | ||
4 |
Name | Order | Citations | PageRank |
---|---|---|---|
Georgia Tsirimokou | 1 | 89 | 10.56 |
Costas Psychalinos | 2 | 325 | 59.04 |
Todd J. Freeborn | 3 | 109 | 14.27 |
Ahmed S. Elwakil | 4 | 410 | 76.61 |