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KARTCI, A. HERENCSÁR, N. BRANČÍK, L. SALAMA, K. N.
Original Title
CMOS-RC Colpitts Oscillator Design Using Floating Fractional-Order Inductance Simulator
Type
conference paper
Language
English
Original Abstract
This paper deals with CMOS fractional-order inductance (FoL) simulator design and its utilization in 2.75th-order Colpitts oscillator providing high frequency of oscillation. The proposed floating FoL is composed of two unity-gain current followers (CF +/- s), two inverting voltage buffers, a transconductor, and a fractional-order capacitor (FoC) of order 0.75, while the input intrinsic resistance of CF. is used as design parameter instead of passive resistor. The resulting equivalent inductance value of the FoL can be adjusted via order of FoC, which was emulated via 5th-order Foster II RC network and values optimized using modified least squares quadratic method. In frequency range 138 kHz -2.45 MHz the L. shows +/- 5 degree phase angle deviation. Theoretical results are verified by SPICE simulations using TSMC 0.18 mu m level-7 LO EPI SCN018 CMOS process parameters with +/- 1 V supply voltages.
Keywords
Colpitts oscillator; fractional-order capacitor; FoC; fractional-order inductor; FoL; fractional-order oscillator
Authors
KARTCI, A.; HERENCSÁR, N.; BRANČÍK, L.; SALAMA, K. N.
Released
5. 8. 2018
Publisher
IEEE
Location
Windsor, Canada
ISBN
978-1-5386-7392-8
Book
Proceedings of the 2018 61st IEEE International Midwest Symposium on Circuits and Systems (MWSCAS)
Pages from
905
Pages to
908
Pages count
4
URL
https://ieeexplore.ieee.org/document/8623859
Full text in the Digital Library
http://hdl.handle.net/11012/194801
BibTex
@inproceedings{BUT149089, author="Aslihan {Kartci} and Norbert {Herencsár} and Lubomír {Brančík} and Khaled Nabil {Salama}", title="CMOS-RC Colpitts Oscillator Design Using Floating Fractional-Order Inductance Simulator", booktitle="Proceedings of the 2018 61st IEEE International Midwest Symposium on Circuits and Systems (MWSCAS)", year="2018", pages="905--908", publisher="IEEE", address="Windsor, Canada", doi="10.1109/MWSCAS.2018.8623859", isbn="978-1-5386-7392-8", url="https://ieeexplore.ieee.org/document/8623859" }