Current-mode KHN biquad filter using modified CFTAs and grounded capacitors

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dc.contributor.authorSatansup, Jetsdaporn
dc.contributor.authorPukkalanun, Tattaya
dc.contributor.authorTangsrirat, Worapong
dc.date.accessioned2026-08-06T10:02:31Z
dc.date.available2026-08-06T10:02:31Z
dc.date.issued2011-07-26
dc.description.abstractIn this paper, a current-mode Kerwin-Huelsman-Newcomb (KHN) filter structure employing four modified current follower transconductance amplifiers (MCFTAs) and two grounded capacitors is proposed. The circuit structure has one low-impedance current input and three high-impedance current outputs, and enables realizing lowpass, bandpass and highpass current responses simultaneously. The bandstop and allpass responses can also be obtained by connecting appropriate output currents directly without additional devices. The proposed filter is capable of providing an independent current-control of the natural angular frequency (ω<inf>0</inf>) and quality factor (Q) through the transconductance of the MCFTA. Moreover, high-Q value filter can be realized by simply tuning the ratio of MCFTA's transconductance. To support the theoretical results, the properties of the presented filter have been verified by simulation results.
dc.identifier.citationImecs 2011 International Multiconference of Engineers and Computer Scientists 2011, 2, 923-926, 2011
dc.identifier.other2-s2.0-79960595709
dc.identifier.urihttps://dspace.kmitl.ac.th/handle/123456789/3690
dc.sourceImecs 2011 International Multiconference of Engineers and Computer Scientists 2011
dc.subjectBiquad filter
dc.subjectCurrent Follower Transconductance Amplifier (CFTA)
dc.subjectCurrent-mode circuit
dc.subjectKerwin-Huelsman-Newcomb (KHN)
dc.titleCurrent-mode KHN biquad filter using modified CFTAs and grounded capacitors
dc.typeConference Paper

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