Implementation of a New and Modified Scheme of Butler Matrix for C-Band Applications with Enhanced Characteristics

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dc.contributor.authorMaleki, Mostafa
dc.contributor.authorNourinia, Javad
dc.contributor.authorGhobadi, Changiz
dc.contributor.authorNaderali, Rahim
dc.coverage.issue2cs
dc.coverage.volume29cs
dc.date.accessioned2020-10-09T10:59:15Z
dc.date.available2020-10-09T10:59:15Z
dc.date.issued2020-06cs
dc.description.abstractIn this paper, the structure of a miniaturized broadband 4 × 4 Butler matrix is presented. All components of the proposed feeding network are designed in a way that they have the smallest electrical size and acceptable performance in the C band. Despite conventional Butler matrix consists of phase shifters, the proposed network benefits from dummy crossover, which leads to improving the phase difference bandwidth. Since in beam switching networks, 90° coupler has a vital role, the main focus is concentrated on the aforementioned component as mentioned above. The compactness of the proposed coupler is associated with embedding the S-shaped arms instead of ordinary elements. Due to overcoming the problem of a mismatch phase difference between phase shifter and crossover, the modified dummy crossover is used. In order to improve the overall performance of the depicted feeding network, S-shaped electromagnetic bandgap structures are used between elements. They reduce destructive mutual coupling effect hence leads to enhance total network efficiency. The extracted results determine that the bandwidth of the presented network is from 3.5 ~ 8.2 GHz that covers the C band totally.en
dc.formattextcs
dc.format.extent328-335cs
dc.format.mimetypeapplication/pdfen
dc.identifier.citationRadioengineering. 2020 vol. 29, č. 2, s. 328-335. ISSN 1210-2512cs
dc.identifier.doi10.13164/re.2020.0328en
dc.identifier.issn1210-2512
dc.identifier.urihttp://hdl.handle.net/11012/195191
dc.language.isoencs
dc.publisherSpolečnost pro radioelektronické inženýrstvícs
dc.relation.ispartofRadioengineeringcs
dc.relation.urihttps://www.radioeng.cz/fulltexts/2020/20_02_0328_0335.pdfcs
dc.rightsCreative Commons Attribution 4.0 International licenseen
dc.rights.accessopenAccessen
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/en
dc.subjectButler matrixen
dc.subjectcoupleren
dc.subjectbroadbanden
dc.subjectelectromagnetic band gapen
dc.titleImplementation of a New and Modified Scheme of Butler Matrix for C-Band Applications with Enhanced Characteristicsen
dc.type.driverarticleen
dc.type.statusPeer-revieweden
dc.type.versionpublishedVersionen
eprints.affiliatedInstitution.facultyFakulta eletrotechniky a komunikačních technologiícs
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