Design of a compact microstrip quadruplexer with closely spaced switchable and tunable channels based on asymmetrical dual-mode loop resonators

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dc.authoridGorur, Ali Kursad/0000-0003-3001-959X
dc.contributor.authorGorur, Ali Kursad
dc.contributor.authorTurkeli, Alper
dc.contributor.authorKarpuz, Ceyhun
dc.contributor.authorGorur, Adnan
dc.date.accessioned2024-11-07T13:34:16Z
dc.date.available2024-11-07T13:34:16Z
dc.date.issued2020
dc.departmentNiğde Ömer Halisdemir Üniversitesi
dc.description.abstractIn this letter, a switchable microstrip quadruplexer based on asymmetrical dual-mode loop resonators (ADMLRs) is presented. Four ADMLRs at different electrical lengths for creating four channels are coupled to input/output (I/O) ports by means of thin film capacitors. Each resonator has two patch elements behaving as reference capacitors that are needed for switching process. In order to achieve the switching ability, varactor diodes are employed to provide variable capacitances at each resonator. Thus, all channels can be independently switched on/off by changing the capacitances of the varactor diodes. Moreover, all channels have fine bandwidth tuning mechanism depending on the capacitance changes. The designed quadruplexer was fabricated and the measurements were observed in a good agreement with the predicted results. Center frequencies of the proposed quadruplexer are adjusted to 1.8, 2.1, 2.4, and 2.7 GHz with the frequency ratios between the adjacent channels of 1.17, 1.14, and 1.13. Isolations between the outputs have been observed as better than 28 dB.
dc.description.sponsorshipScientific and Technological Research Council of Turkey (TUB.ITAK) [215E099]
dc.description.sponsorshipThis work was supported by the Scientific and Technological Research Council of Turkey (TUB.ITAK) under Grant 215E099.
dc.identifier.doi10.1016/j.aeue.2020.153421
dc.identifier.issn1434-8411
dc.identifier.issn1618-0399
dc.identifier.scopus2-s2.0-85092316267
dc.identifier.scopusqualityQ2
dc.identifier.urihttps://doi.org/10.1016/j.aeue.2020.153421
dc.identifier.urihttps://hdl.handle.net/11480/15876
dc.identifier.volume127
dc.identifier.wosWOS:000591688600017
dc.identifier.wosqualityQ2
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherElsevier Gmbh
dc.relation.ispartofAeu-International Journal of Electronics and Communications
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.snmzKA_20241106
dc.subjectQuadruplexer
dc.subjectAsymmetrical dual-mode loop resonator (ADMLR)
dc.subjectVaractor diode
dc.subjectSwitchable
dc.subjectTunable
dc.titleDesign of a compact microstrip quadruplexer with closely spaced switchable and tunable channels based on asymmetrical dual-mode loop resonators
dc.typeArticle

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