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Appraisal of Asymptotics in Electromagnetic Field Calculations

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Book cover Scientific Computing in Electrical Engineering

Part of the book series: Lecture Notes in Computational Science and Engineering ((LNCSE,volume 18))

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Abstract

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.

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References

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Author information

Authors and Affiliations

  1. Thomson CSF Signaal, P.O. Box 42, 7550, GD Hengelo, The Netherlands

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

  2. University of Twente, P.O. Box 217, 7500, AE Enschede, The Netherlands

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

Authors
  1. M. Kedde
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  2. P.-P. Borsboom
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  3. C. R. Traas
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Editor information

Editors and Affiliations

  1. Fachbereich Elektrotechnik und Informationstechnik, Universität Rostock, Albert-Einstein-Straße 2, 18051, Rostock, Germany

    Ursula van Rienen  & Dirk Hecht  & 

  2. Institut für Wissenschaftliches Rechnen und Mathematische Modellbildung IWRMM, Universität Karlsruhe, Engesserstraße 6, 76128, Karlsruhe, Germany

    Michael Günther

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© 2001 Springer-Verlag Berlin Heidelberg

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Kedde, M., Borsboom, PP., Traas, C.R. (2001). Appraisal of Asymptotics in Electromagnetic Field Calculations. In: van Rienen, U., Günther, M., Hecht, D. (eds) Scientific Computing in Electrical Engineering. Lecture Notes in Computational Science and Engineering, vol 18. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-56470-3_14

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  • DOI: https://doi.org/10.1007/978-3-642-56470-3_14

  • Publisher Name: Springer, Berlin, Heidelberg

  • Print ISBN: 978-3-540-42173-3

  • Online ISBN: 978-3-642-56470-3

  • eBook Packages: Springer Book Archive

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