Scattering from impedance objects at the edge of a perfectly conducting wedge

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buir.advisorAltıntaş, Ayhan
dc.contributor.authorGhassemiparvin, Behnam
dc.date.accessioned2016-01-08T18:24:53Z
dc.date.available2016-01-08T18:24:53Z
dc.date.issued2012
dc.departmentDepartment of Electrical and Electronics Engineeringen_US
dc.descriptionAnkara : The Department of Electrical and Electronics Engineering and the Graduate School of Engineering and Science of Bilkent University, 2012.en_US
dc.descriptionThesis (Master's) -- Bilkent University, 2012.en_US
dc.descriptionIncludes bibliographical refences.en_US
dc.description.abstractIn this study, scattering from impedance bodies positioned at the edge of a perfectly conducting (PEC) wedge is investigated. In the treatment of the problem, eigenfunction expansion in terms of spherical vector wave functions is employed. A complete dyadic Green’s function for the spherical impedance boss at the edge is developed and through decomposing the dyadic Green’s function, it can be observed that the contribution of the scatterer is separated from the wedge. It is shown that the scattering is highly enhanced by the edge guided waves. For the general case of irregularly shaped scatterer the solution is extended using T-matrix method. The method is implemented by replacing free space Green’s function with the dyadic Green’s function of the PEC wedge. The solution is verified by applying it to the case of spherical scatterer and results are compared with the dyadic Green’s function solution. The T-matrix solution is generalized for the multiple scatterer case. Numerical results are obtained for two impedance scatterers at the edge and compared with the PEC case.en_US
dc.description.degreeM.S.en_US
dc.description.statementofresponsibilityGhassemiparvin, Behnamen_US
dc.format.extentxi, 69 leavesen_US
dc.identifier.urihttp://hdl.handle.net/11693/15804
dc.language.isoEnglishen_US
dc.publisherBilkent Universityen_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.subjectElectromagnetic scatteringen_US
dc.subjecteigenfunction expansionen_US
dc.subjectspherical vectoren_US
dc.subjectwave functionsen_US
dc.subjectdyadic Green’s functionen_US
dc.subjectT-matrixen_US
dc.subject.lccQC665.S3 G43 2012en_US
dc.subject.lcshElectromagnetic waves--Scattering--Mathematics.en_US
dc.subject.lcshScattering (Physics)en_US
dc.subject.lcshScattering (Mathematics)en_US
dc.subject.lcshGreen's functions.en_US
dc.titleScattering from impedance objects at the edge of a perfectly conducting wedgeen_US
dc.typeThesisen_US
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