Electronically switchable compact quad-band microstrip bandpass filter using varactor perturbed dual-mode resonators

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dc.authoridGorur, Ali Kursad/0000-0003-3001-959X
dc.contributor.authorGorur, Ali Kursad
dc.contributor.authorKarpuz, Ceyhun
dc.contributor.authorGorur, Adnan
dc.date.accessioned2024-11-07T13:34:18Z
dc.date.available2024-11-07T13:34:18Z
dc.date.issued2018
dc.departmentNiğde Ömer Halisdemir Üniversitesi
dc.description.abstractIn this paper, an electronically switchable quad-band microstrip bandpass filter is designed using varactor perturbed dual-mode resonators. For this purpose, four meandered dual-mode square loop resonators (DMSLRs) having reference patches are nested and varactor diodes are used to serve as perturbation elements. The designed resonator is analyzed by deriving even/odd mode resonance conditions. S-parameters are also calculated according to the even and odd mode input impedances. Stub loaded feedlines are used to couple the DMSLRs to Input/Output (I/O) ports. According to the capacitances of varactor diodes, each passband can be independently turned on and off. Coupling scheme and coupling matrix of the designed filter are introduced to realize the coupling descriptions. Switching operations are also investigated over the frequency responses obtained from coupling matrix. Passbands of the filter are adjusted to 1.4, 1.7, 2.25, and 2.7GHz. The designed filter was also fabricated and measured results show a good agreement with the simulated and theoretical results.
dc.identifier.doi10.1080/09205071.2017.1414000
dc.identifier.endpage1039
dc.identifier.issn0920-5071
dc.identifier.issn1569-3937
dc.identifier.issue8
dc.identifier.scopus2-s2.0-85044095455
dc.identifier.scopusqualityQ3
dc.identifier.startpage1029
dc.identifier.urihttps://doi.org/10.1080/09205071.2017.1414000
dc.identifier.urihttps://hdl.handle.net/11480/15912
dc.identifier.volume32
dc.identifier.wosWOS:000427945000008
dc.identifier.wosqualityQ3
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherTaylor & Francis Ltd
dc.relation.ispartofJournal of Electromagnetic Waves and Applications
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.snmzKA_20241106
dc.subjectQuad-band
dc.subjectbandpass filter
dc.subjectswitchable
dc.subjectvaractor
dc.subjectdual-mode resonators (DMRs)
dc.titleElectronically switchable compact quad-band microstrip bandpass filter using varactor perturbed dual-mode resonators
dc.typeArticle

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