Non-reciprocal balanced bandpass filters with quasi-elliptic response

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dc.contributor.authorSimpson, Dakotah
dc.contributor.authorVryonides, Photos
dc.contributor.authorNikolaou, Symeon
dc.contributor.authorPsychogiou, Dimitra
dc.contributor.funderNational Science Foundationen
dc.contributor.funderScience Foundation Irelanden
dc.date.accessioned2022-09-08T11:37:50Z
dc.date.available2022-09-08T11:37:50Z
dc.date.issued2022-08-30
dc.date.updated2022-09-08T08:32:28Z
dc.description.abstractThis paper reports on the RF design and practical development of a non-reciprocal balanced bandpass filter (BPF) that exhibits a highly-selective quasi-elliptic response in the forward direction of propagation that is shaped by four transmission poles and two transmission zeros (TZs). By modulating some of the filterâ s resonators with phase-progressed AC signals, a non-reciprocal response is obtained in the differential mode. Its common-mode is also highly suppressed due to the incorporation of a balanced network that results in two additional TZs and resistive loss that are unique to the common-mode. The filter order can be increased by cascading additional resonators. For validation purposes, a microstrip prototype centered at 725 MHz was designed, manufactured, and measured. It showed a high isolation in the differential-mode reverse transmission of up to 62.1 dB. Moreover, the common-mode was suppressed by over 45 dB in a bandwidth greater than one octave.en
dc.description.sponsorshipNational Science Foundation (Grant Number: ECCS-1941315); Science Foundation Ireland (Grant Number: 20/RP/8334)en
dc.description.statusPeer revieweden
dc.description.versionAccepted Versionen
dc.format.mimetypeapplication/pdfen
dc.identifier.citationSimpson, D., Vryonides, P., Nikolaou, S. and Psychogiou, D. (2022) 'Non-reciprocal balanced bandpass filters with quasi-elliptic response', IEEE Transactions on Circuits and Systems II: Express Briefs. doi: 10.1109/TCSII.2022.3202860en
dc.identifier.doi10.1109/TCSII.2022.3202860en
dc.identifier.eissn1558-3791
dc.identifier.issn1549-7747
dc.identifier.journaltitleIEEE Transactions on Circuits and Systems II: Express Briefsen
dc.identifier.urihttps://hdl.handle.net/10468/13550
dc.language.isoenen
dc.publisherInstitute of Electrical and Electronics Engineers (IEEE)en
dc.rights© 2022, IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.en
dc.subjectBalanced filteren
dc.subjectBandpass filteren
dc.subjectIsolatoren
dc.subjectMicrostrip filteren
dc.subjectNon-reciprocal filteren
dc.subjectNon-reciprocityen
dc.titleNon-reciprocal balanced bandpass filters with quasi-elliptic responseen
dc.typeArticle (peer-reviewed)en
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