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Fractional‐order electronically controlled generalized filters
Author(s) -
Tsirimokou Georgia,
Psychalinos Costas,
Elwakil Ahmed S.
Publication year - 2017
Publication title -
international journal of circuit theory and applications
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.364
H-Index - 52
eISSN - 1097-007X
pISSN - 0098-9886
DOI - 10.1002/cta.2250
Subject(s) - network topology , all pass filter , band pass filter , electronic engineering , capacitor , transconductance , topology (electrical circuits) , realization (probability) , operational amplifier , high pass filter , filter (signal processing) , computer science , engineering , low pass filter , amplifier , mathematics , cmos , electrical engineering , transistor , statistics , voltage , operating system
Summary Novel topologies of fractional‐order generalized filters are introduced in this paper. These offer the following benefits: (1) realization of lowpass, highpass, bandpass, allpass, or bandstop filter functions by the same topology; (2) resistorless realizations; (3) electronic adjustment of their frequency characteristics as well as their order; and (4) employment of only grounded capacitors. All the above have been achieved using Operational Transconductance Amplifiers as active elements and appropriate multi‐feedback topologies. The behavior of the proposed designs is verified through simulation results using the Cadence IC design suite and the Design Kit provided by the Austrian Micro Systems 0.35‐µm complementary metal–oxide–semiconductor process. Copyright © 2016 John Wiley & Sons, Ltd.