Soft polarization diffraction coefficient for a conducting cylinder-tipped wedge

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TMz electromagnetic scattering from a perfectly conducting wedge with a cylindrical tip is formulated using a mode-matching technique. The eigenmode expansion is then written in a convenient form, where the total field is expressed as a superposition of a wedge-diffraction term based on the uniform theory of diffraction, a geometrical optics term, and a Correction Field term due to the presence of the cylindrical tip. The obtained diffraction coefficient can be easily incorporated into existing ray-tracing, high-frequency codes for the prediction of scattered fields from electrically large structures. The underlined formulation and obtained expressions are verified by comparing numerical results with the finite element method.

Original languageEnglish
Article number5582251
Pages (from-to)4082-4085
Number of pages4
JournalIEEE Transactions on Antennas and Propagation
Issue number12
Publication statusPublished - Dec 2010


  • Diffraction coefficient
  • electromagnetic scattering
  • mode-matching method
  • perfectly conducting wedge


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