The solution of waveguide scattering problems by application of an extended huygens formulation

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dc.contributor.authorGeschke R.H.
dc.contributor.authorFerrari R.L.
dc.contributor.authorDavidson D.B.
dc.contributor.authorMeyer P.
dc.date.accessioned2011-05-15T16:01:45Z
dc.date.available2011-05-15T16:01:45Z
dc.date.issued2006
dc.description.abstractThe implementation of a recent new hybrid integral-equation/vector finite-element method formulation applicable to inhomogeneous obstacle scattering in hollow waveguide, requiring discretization just of the obstacle, is presented. The integral equation links the given incident modes with the discontinuity-surface electric and magnetic fields. The finite-element equation is expressed in terms of the entire magnetic and surface electric field of the obstacle. Compatible vector finite-element basis function expansions are inserted, resulting in a pair of matrix equations soluble for the unknown electric and magnetic basis coefficients. Corresponding two-port scattering parameters are further derived. Test cases of posts in theTE10 waveguide, with details of the matrix constructions, are described. Numerical results verified against an established commercial code are given. The ability to model inhomogeneous, lossy, and multiple scatterers is demonstrated. © 2006 IEEE.
dc.description.versionArticle
dc.identifier.citationIEEE Transactions on Microwave Theory and Techniques
dc.identifier.citation54
dc.identifier.citation10
dc.identifier.issn189480
dc.identifier.other10.1109/TMTT.2006.882893
dc.identifier.urihttp://hdl.handle.net/10019.1/12134
dc.subjectHuygens formulation
dc.subjectHuygens' principle
dc.subjectSingular matrix
dc.subjectWaveguide Green functions
dc.subjectElectric fields
dc.subjectFinite element method
dc.subjectGreen's function
dc.subjectIntegral equations
dc.subjectMagnetic fields
dc.subjectProblem solving
dc.subjectVectors
dc.subjectWaveguide circulators
dc.titleThe solution of waveguide scattering problems by application of an extended huygens formulation
dc.typeArticle
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