Using phase relations in microstrip directional couplers to achieve high directivity

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buir.contributor.orcidAtalar, Abdullah|0000-0002-1903-1240
dc.citation.epage4071en_US
dc.citation.issueNumber12en_US
dc.citation.spage4063en_US
dc.citation.volumeNumber61en_US
dc.contributor.authorTas, V.en_US
dc.contributor.authorAtalar, Abdullahen_US
dc.date.accessioned2016-02-08T09:33:31Z
dc.date.available2016-02-08T09:33:31Z
dc.date.issued2013en_US
dc.departmentDepartment of Electrical and Electronics Engineeringen_US
dc.description.abstractWe analyze the microstrip directional couplers with a special focus on the phase difference between the coupled and isolated ports. The analysis uses the even-odd mode decomposition technique and network theory. The results show that the phase difference between the signals at the coupled port and the isolated port is close to \pi in a very wide band. This property can be used to achieve a broadband directivity by inducing a voltage cancellation at the isolated port of the couplers. Two different cancellation methods are investigated. Analytical formulas for the required component values of both methods are given. Higher directivity can be obtained at the expense of reduced bandwidth.en_US
dc.identifier.doi10.1109/TMTT.2013.2288601en_US
dc.identifier.issn0018-9480
dc.identifier.urihttp://hdl.handle.net/11693/20705
dc.language.isoEnglishen_US
dc.relation.isversionofhttp://dx.doi.org/10.1109/TMTT.2013.2288601en_US
dc.source.titleIEEE Transactions on Microwave Theory and Techniquesen_US
dc.subjectBroadband microstrip coupleren_US
dc.subjectCoupler phase relationsen_US
dc.subjectCoupling isolation phase differenceen_US
dc.subjectHigh directivityen_US
dc.subjectAnalytical formulasen_US
dc.subjectHigh-directivityen_US
dc.subjectIsolated portsen_US
dc.subjectMicrostrip coupleren_US
dc.subjectMode decomposition techniquesen_US
dc.subjectPhase differenceen_US
dc.subjectPhase relationen_US
dc.subjectReduced bandwidthsen_US
dc.subjectMicrowave circuitsen_US
dc.subjectMicrowavesen_US
dc.subjectDirectional couplersen_US
dc.titleUsing phase relations in microstrip directional couplers to achieve high directivityen_US
dc.typeArticleen_US

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