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dc.contributor.authorMiyagawa, Hayatoen_US
dc.contributor.authorWakino, Kikuoen_US
dc.contributor.authorLin, Yu-Deen_US
dc.contributor.authorKitazawa, Toshihideen_US
dc.date.accessioned2014-12-08T15:08:46Z-
dc.date.available2014-12-08T15:08:46Z-
dc.date.issued2009-09-01en_US
dc.identifier.issn0018-9480en_US
dc.identifier.urihttp://dx.doi.org/10.1109/TMTT.2009.2027201en_US
dc.identifier.urihttp://hdl.handle.net/11536/6704-
dc.description.abstractAn effective simultaneous evaluation method for the complex permittivity and permeability of lossy materials is proposed by applying it to an arbitrarily shaped cross-sectional post placed in a rectangular waveguide. We use one sample and only measure S(21) parameters for two different locations of the sample. The measurement of complex reflection parameter S(11) is not required in this evaluation method. The scheme of electromagnetic field analysis for the evaluation is based on the extended spectral-domain approach combined with the mode-matching method, which is accurate and efficient, and can be flexibly used for the iterative fitting operation for the estimation of material parameters. Sample preparation and setting is significantly easier in this method compared to conventional methods. The error caused by deviations in the setting of a sample is investigated. The estimated values for the sample material by this procedure show good agreement with the results obtained using the conventional method over the X-band.en_US
dc.language.isoen_USen_US
dc.subjectArbitrarily shaped sampleen_US
dc.subjecthybrid methoden_US
dc.subjectinverse problemen_US
dc.subjectpermittivity and permeabilityen_US
dc.subjectspectral-domain approachen_US
dc.titleSimultaneous Determination of Complex Permittivity and Permeability of Columnar Materials With Arbitrarily Shaped Cross Sectionen_US
dc.typeArticleen_US
dc.identifier.doi10.1109/TMTT.2009.2027201en_US
dc.identifier.journalIEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUESen_US
dc.citation.volume57en_US
dc.citation.issue9en_US
dc.citation.spage2249en_US
dc.citation.epage2256en_US
dc.contributor.department電信工程研究所zh_TW
dc.contributor.departmentInstitute of Communications Engineeringen_US
dc.identifier.wosnumberWOS:000269648800016-
dc.citation.woscount5-
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