Appraisal of Asymptotics in Electromagnetic Field Calculations

M. Kedde, P.P. Borsboom, C.R. Traas

    Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review


    An expression for the electric field of a dipole near a perfectly conducting wedge has been derived to appraise the Uniform Theory of Diffraction (UTD) in regions where it is expected to deviate from the exact solution, e.g. the near field. This expression, obtained using the theory of Green’s functions, has been evaluated using numerical integration. First the solution is verified for the case of a dipole near a ground plane, which can also be calculated using image theory. Next the numerical solution for the near field is compared to results obtained with the UTD-method for different parameter configurations. The most striking difference occurs when the angle of the wedge is sharp and both the source and observer are located within a few wavelengths from the edge.
    Original languageEnglish
    Title of host publicationScientific Computing in Electrical Engineering
    Subtitle of host publicationProceedings of the 3rd International Workshop, August 20–23, 2000, Warnemünde, Germany
    EditorsUrsula Rienen, Michael Günther, Dirk Hecht
    Place of PublicationBerlin
    ISBN (Electronic)978-3-642-56470-3
    ISBN (Print)978-3-540-42173-3
    Publication statusPublished - 2001
    Event3rd International Workshop on Scientific Computing in Electrical Engineering, SCEE 2000 - Rostock University, Warnemünde, Rostock, Germany
    Duration: 20 Aug 200023 Aug 2000
    Conference number: 3

    Publication series

    NameLecture Notes in Computational Science and Engineering
    ISSN (Print)1439-7358


    Conference3rd International Workshop on Scientific Computing in Electrical Engineering, SCEE 2000
    Abbreviated titleSCEE
    CityWarnemünde, Rostock


    • METIS-200741

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