Kirchhoff Approximation Analysis of Plane Wave Scattering by Conducting Thick Slits

Khanh Nam NGUYEN  Hiroshi SHIRAI  

IEICE TRANSACTIONS on Electronics   Vol.E102-C   No.1   pp.12-20
Publication Date: 2019/01/01
Online ISSN: 1745-1353
DOI: 10.1587/transele.E102.C.12
Type of Manuscript: Special Section PAPER (Special Section on Recent Progress in Electromagnetic Theory and Its Application)
kirchhoff approximation,  plane wave scattering,  conducting thick slit,  

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Kirchhoff approximation (KA) method has been applied for ray-mode conversion to analyze the plane wave scattering by conducting thick slits. The scattering fields can be considered as field radiations from equivalent magnetic current sources assumed by closing the aperture of the slit. The obtained results are compared with those of other methods to validate the accuracy of the proposed formulation in different conditions of slit dimension.