Gain-Controllable Transadmittance-Mode First-Order Allpass Filters with Electronic Tune Using Single Active Element

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dc.contributor.authorTanaphatsiri, Chaiya
dc.contributor.authorKhateb, Fabian
dc.contributor.authorSotner, Roman
dc.contributor.authorJaikla, Winai
dc.date.accessioned2026-08-06T10:45:29Z
dc.date.available2026-08-06T10:45:29Z
dc.date.issued2024-02-01
dc.description.abstractFirst-order allpass filters are analog filters with a unit magnitude response, but they change the phase shift between input and output signals at various frequencies. This paper presents the transadmittance-mode first-order allpass filters based on the modified current-controlled current differencing transconductance amplifier (M-CCCDTA). The proposed filters utilize a single M-CCCDTA and a grounded capacitor with no external resistors, making them well suited for implementation in an integrated circuit. The gain and phase response of the proposed filters can be adjusted electronically and separately. Also, the high output impedance of the proposed filters at both the input voltage node and the output current node makes cascading easy without the need for buffer devices. A quadrature sinusoidal oscillator based on the proposed first-order allpass filter has been designed as an example of an application. The PSpice simulation and actual experiments are utilized to validate the functionality of the proposed filters. The simulation and experimental results are consistent with the idea of anticipation.
dc.identifier.citationJournal of Circuits Systems and Computers, 33(3), 2024
dc.identifier.doi10.1142/S0218126624500464
dc.identifier.issn02181266
dc.identifier.other2-s2.0-85187513847
dc.identifier.urihttps://dspace.kmitl.ac.th/handle/123456789/15480
dc.sourceJournal of Circuits Systems and Computers
dc.subjectallpass filter
dc.subjectanalog circuit
dc.subjectintegrated circuit
dc.subjectM-CCCDTA
dc.subjectphase shifter
dc.subjectTransadmittance mode
dc.titleGain-Controllable Transadmittance-Mode First-Order Allpass Filters with Electronic Tune Using Single Active Element
dc.typeArticle

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