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Electromagnetic plane wave scattering by a gap on a ground plane

✍ Scribed by Ryoichi Sato; Hiroshi Shirai

Publisher
John Wiley and Sons
Year
1997
Tongue
English
Weight
264 KB
Volume
80
Category
Article
ISSN
8756-663X

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✦ Synopsis

In this paper, electromagnetic plane wave scattering by a gap on a ground plane is analyzed. First, a rectangular trough is used as a gap model to obtain the rigorous representation of the scattering field based on a method by Kobayashi and Nomura. Then the simple formulae for the case when the aperture width is electrically narrow are derived for both H and E polarization. Numerical calculation is performed to check the validity of the derived formulae for various gap widths and depths. It is shown that our numerical results are in good agreement with those obtained from rigorous representations when the width is less than 0.2 wavelength, regardless of the depth. Comparison with other approximate solutions for the narrow case is also discussed.

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