Compact Microstrip Triple-Mode Bandpass Filters Using Dual-Stub-Loaded Spiral Resonators

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dc.contributor.authorXu, Kai-da
dc.contributor.authorLi, Meng-ze
dc.contributor.authorLiu, Yan-hui
dc.contributor.authorAi, Jing
dc.contributor.authorBai, Ye-cheng
dc.coverage.issue1cs
dc.coverage.volume26cs
dc.date.accessioned2017-04-18T08:21:41Z
dc.date.available2017-04-18T08:21:41Z
dc.date.issued2017-04cs
dc.description.abstractTwo new microstrip triple-mode resonators loaded with T-shaped open stubs using axially and centrally symmetric spiral structures, respectively, are presented. Spiraled for circuit size reduction, these two half-wavelength resonators can both generate three resonant modes over a wide frequency band by loading two T-stubs with different lengths. Due to the structural symmetry, they can be analyzed by odd- and even-mode method. To validate the design concept, two compact bandpass filters (BPFs) using these two novel resonators with center frequencies of 1.76 GHz and 2.44 GHz for the GSM1800 and WLAN/Zigbee applications, respectively, have been designed, fabricated and tested. The center frequencies and bandwidths can be tunable through the analysis of resonant frequency responses, fractional bandwidths and external quality factor versus the resonator parameters. The final measured results have achieved good consistence with the simulations of these two BPFs.en
dc.formattextcs
dc.format.extent23-29cs
dc.format.mimetypeapplication/pdfen
dc.identifier.citationRadioengineering. 2017 vol. 26, č. 1, s. 23-29. ISSN 1210-2512cs
dc.identifier.doi10.13164/re.2017.0023en
dc.identifier.issn1210-2512
dc.identifier.urihttp://hdl.handle.net/11012/64702
dc.language.isoencs
dc.publisherSpolečnost pro radioelektronické inženýrstvícs
dc.relation.ispartofRadioengineeringcs
dc.relation.urihttp://www.radioeng.cz/fulltexts/2017/17_01_0023_0029.pdfcs
dc.rightsCreative Commons Attribution 4.0 Internationalen
dc.rights.accessopenAccessen
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/en
dc.subjectSpiral resonatoren
dc.subjectstub-loaded resonatorsen
dc.subjecttransmission zerosen
dc.subjecttriple-mode bandpass filteren
dc.titleCompact Microstrip Triple-Mode Bandpass Filters Using Dual-Stub-Loaded Spiral Resonatorsen
dc.type.driverarticleen
dc.type.statusPeer-revieweden
dc.type.versionpublishedVersionen
eprints.affiliatedInstitution.facultyFakulta eletrotechniky a komunikačních technologiícs
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