A Design of Branch-Line Coupler with Harmonic Suppression and Size Reduction Using Closed-Loop and Open-Loop Resonators

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dc.contributor.authorAbdipour, Ashkan
dc.contributor.authorAbdipour, Arash
dc.contributor.authorZare, Elham
dc.coverage.issue4cs
dc.coverage.volume26cs
dc.date.accessioned2018-06-18T10:29:48Z
dc.date.available2018-06-18T10:29:48Z
dc.date.issued2017-12cs
dc.description.abstractIn this paper, a branch-line coupler using closed-loop and open-loop resonators with the operating frequency of 2.69 GHz is proposed. The designed microstrip circuit not only is able to suppress the second and the third unwanted harmonics but also reduces the occupied area to 59% of the traditional branch-line coupler. To explain how the employed resonators can suppress spurious frequencies, transmission zeros of both resonators based on their equivalent LC has been calculated, separately. To prove the abilities of the proposed branch-line coupler, the designed circuit has been fabricated and tested resulting in a good agreement between the measurement and simulation results. According to the S11 when it is less than -15 dB the bandwidth of the designed branch-line coupler is about 500 MHz, from 2.42 to 2.92 GHz .The comparison between the results of simulation and measurement are in good agreement.en
dc.formattextcs
dc.format.extent999-1005cs
dc.format.mimetypeapplication/pdfen
dc.identifier.citationRadioengineering. 2017 vol. 26, č. 4, s. 999-1005. ISSN 1210-2512cs
dc.identifier.doi10.13164/re.2017.0999en
dc.identifier.issn1210-2512
dc.identifier.urihttp://hdl.handle.net/11012/82928
dc.language.isoencs
dc.publisherSpolečnost pro radioelektronické inženýrstvícs
dc.relation.ispartofRadioengineeringcs
dc.relation.urihttp://www.radioeng.cz/fulltexts/2017/17_01_0999_1005.pdfcs
dc.rightsCreative Commons Attribution 4.0 Internationalen
dc.rights.accessopenAccessen
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/en
dc.subjectHarmonic suppressionen
dc.subjectmicrostrip circuiten
dc.subjectminiaturized branch-line coupleren
dc.titleA Design of Branch-Line Coupler with Harmonic Suppression and Size Reduction Using Closed-Loop and Open-Loop Resonatorsen
dc.type.driverarticleen
dc.type.statusPeer-revieweden
dc.type.versionpublishedVersionen
eprints.affiliatedInstitution.facultyFakulta eletrotechniky a komunikačních technologiícs
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