Design of tunable microstrip diplexer with reconfigurable filtering characteristics based on dual-mode square loop resonators

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dc.authoridGorur, Ali Kursad/0000-0003-3001-959X
dc.contributor.authorGorur, Ali Kursad
dc.contributor.authorDogan, Engin
dc.contributor.authorKarpuz, Ceyhun
dc.contributor.authorGorur, Adnan
dc.date.accessioned2024-11-07T13:34:19Z
dc.date.available2024-11-07T13:34:19Z
dc.date.issued2020
dc.departmentNiğde Ömer Halisdemir Üniversitesi
dc.description.abstractA novel compact microstrip diplexer with tunable centre frequencies and reconfigurable filtering characteristics at both channels is presented. The designed diplexer is constructed by coupling two dual-mode square loop resonators (DMSLRs) having different electrical lengths. The DMSLRs are investigated by virtue of the coupled line analysis to evaluate the resonance frequencies, transmission zeros and out-band insertion loss level more conveniently. Centre frequencies of both channels can be independently tuned by the varactor diodes utilised instead of perturbation and reference capacitances. Depending on the specialised values of perturbation and reference capacitances, filtering characteristics of both channels can be reconfigured in terms of transmission zeros. The designed diplexer was fabricated and tested for the experimental studies and the measurements were obtained in a good agreement with the predicted results. Tuning ranges of the measured centre frequency in the first channel are between 1.23 and 1.43 and 1.35 and 1.64 GHz for the filtering characteristics with right- and left-side transmission zeros, respectively. In the second channel, they are 2.07-2.31 and 2.14-2.51 GHz for the filtering characteristics with real- and imaginary-axis transmission zeros, respectively. Isolation between two channels has been obtained better than 22 dB.
dc.description.sponsorshipScientific and Technological Research Council of Turkey (TUBITAK) [215E099]
dc.description.sponsorshipThis work was supported by the Scientific and Technological Research Council of Turkey (TUBITAK) under Grant no. 215E099.
dc.identifier.doi10.1049/iet-map.2019.1133
dc.identifier.endpage1594
dc.identifier.issn1751-8725
dc.identifier.issn1751-8733
dc.identifier.issue13
dc.identifier.scopus2-s2.0-85094652117
dc.identifier.scopusqualityQ2
dc.identifier.startpage1587
dc.identifier.urihttps://doi.org/10.1049/iet-map.2019.1133
dc.identifier.urihttps://hdl.handle.net/11480/15919
dc.identifier.volume14
dc.identifier.wosWOS:000586657000014
dc.identifier.wosqualityQ3
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherWiley
dc.relation.ispartofIet Microwaves Antennas & Propagation
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/openAccess
dc.snmzKA_20241106
dc.subjectvaractors
dc.subjectresonator filters
dc.subjectfrequency response
dc.subjectband-pass filters
dc.subjectmicrostrip resonators
dc.subjectUHF filters
dc.subjectmicrostrip filters
dc.subjectmultiplexing
dc.subjectDMSLR
dc.subjectcoupled line analysis
dc.subjectresonance frequencies
dc.subjecttransmission zero
dc.subjectout-band insertion loss level
dc.subjectreference capacitances
dc.subjectfrequency responses
dc.subjectimaginary-axis transmission zeros
dc.subjecttunable microstrip diplexer
dc.subjectreconfigurable filtering characteristics
dc.subjectdual-mode square loop resonators
dc.subjectcompact microstrip diplexer
dc.subjecttunable centre frequencies
dc.subjectelectrical lengths
dc.subjectvaractor diode
dc.subjectperturbation values
dc.subjectreal-axis transmission zeros
dc.subjectright-side transmission zeros
dc.subjectleft-side transmission zeros
dc.subjectmultifunction communication systems
dc.subjectGPS technology
dc.subject4G-LTE technology
dc.subjectfrequency 2
dc.subject14 GHz to 2
dc.subject51 GHz
dc.subjectfrequency 2
dc.subject07 GHz to 2
dc.subject31 GHz
dc.subjectfrequency 1
dc.subject23 GHz to 1
dc.subject64 GHz
dc.titleDesign of tunable microstrip diplexer with reconfigurable filtering characteristics based on dual-mode square loop resonators
dc.typeArticle

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