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Aperture-coupled cavity-fed back-to-back microstrip directional coupler

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dc.contributor.authorNam, Sang Ho-
dc.contributor.authorNam, Kyung Min-
dc.contributor.authorKim, Chul Un-
dc.contributor.authorKim, Jeong Phill-
dc.date.available2019-05-30T05:35:05Z-
dc.date.issued2008-03-
dc.identifier.issn0895-2477-
dc.identifier.issn1098-2760-
dc.identifier.urihttps://scholarworks.bwise.kr/cau/handle/2019.sw.cau/23820-
dc.description.abstractAn analysis and design theory of an aperture-coupled cavity-fed back-to-back microstrip directional coupler is presented for efficient and optimized design. For this purpose, an equivalent network is developed, and a simple yet accurate circuit element value calculation is described. Design equations of the coupler are derived based on the equivalent circuit. To determine various structural design parameters, the evolutionary, hybrid optimization method based on a genetic algorithm and the Nelder-Mead method is used. As a validation check of the proposed theory and optimized design method, a 10 dB directional coupler was designed and fabricated. The measured coupling was 10.3 dB at 3 GHz, and the return loss and isolation were 31.8 dB and 30.5 dB, respectively. The directional coupler also showed very good quadrature phase characteristics. Good agreements between the measured and the design specifications fully validate the proposed network analysis and design procedure. (c) 2008 Wiley Periodicals, Inc.-
dc.format.extent5-
dc.language영어-
dc.language.isoENG-
dc.publisherJOHN WILEY & SONS INC-
dc.titleAperture-coupled cavity-fed back-to-back microstrip directional coupler-
dc.typeArticle-
dc.identifier.doi10.1002/mop.23145-
dc.identifier.bibliographicCitationMICROWAVE AND OPTICAL TECHNOLOGY LETTERS, v.50, no.3, pp 551 - 555-
dc.description.isOpenAccessN-
dc.identifier.wosid000253106400001-
dc.identifier.scopusid2-s2.0-39849090781-
dc.citation.endPage555-
dc.citation.number3-
dc.citation.startPage551-
dc.citation.titleMICROWAVE AND OPTICAL TECHNOLOGY LETTERS-
dc.citation.volume50-
dc.type.docTypeArticle-
dc.publisher.location미국-
dc.subject.keywordAuthoraperture coupling-
dc.subject.keywordAuthorcavity feed-
dc.subject.keywordAuthordirectional coupler-
dc.subject.keywordAuthormicrostrip circuit-
dc.subject.keywordAuthorhybrid genetic algorithm-
dc.subject.keywordPlusPATCH ANTENNA-
dc.subject.keywordPlusTRANSITIONS-
dc.subject.keywordPlusSLOT-
dc.relation.journalResearchAreaEngineering-
dc.relation.journalResearchAreaOptics-
dc.relation.journalWebOfScienceCategoryEngineering, Electrical & Electronic-
dc.relation.journalWebOfScienceCategoryOptics-
dc.description.journalRegisteredClassscie-
dc.description.journalRegisteredClassscopus-
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