Boosting the Quality Factor of the Shadow Bandpass Filter

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dc.contributor.authorBuakaew, Seangrawee
dc.contributor.authorWongtaychatham, Chariya
dc.date.accessioned2026-08-06T10:37:52Z
dc.date.available2026-08-06T10:37:52Z
dc.date.issued2022-09-30
dc.description.abstractThis paper proposes a new method to increase the quality factor of the shadow bandpass filter. The proposed circuit topology is simple, with the use of conventional biquad cell along with external amplifiers. The major advantageous feature is that the quality factor of the filter is boosted up whereas the gain of the external amplifier is significantly reduced. Moreover, the presented idea can be applied to the shadow filter in both current and voltage modes. The proposed scheme is justified via circuit performance. The performance is compared with the previous research works in the same arena. The results show that a feedback signal and a properly chosen gain incredibly boost up the quality factor of the shadow bandpass filter. Simulations by PSpice using 0.18-μm CMOS-level parameters confirm the validity of the proposed work.
dc.identifier.citationJournal of Circuits Systems and Computers, 31(14), 2022
dc.identifier.doi10.1142/S0218126622502486
dc.identifier.issn02181266
dc.identifier.other2-s2.0-85131944535
dc.identifier.urihttps://dspace.kmitl.ac.th/handle/123456789/13456
dc.sourceJournal of Circuits Systems and Computers
dc.subjectanalog circuit
dc.subjectbandpass
dc.subjectHigh-quality factor
dc.subjectshadow filter
dc.subjecttransconductance amplifier
dc.titleBoosting the Quality Factor of the Shadow Bandpass Filter
dc.typeArticle

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