Transition Zone in High-Frequency Diffraction on Impedance Contour with Jumping Curvature. Kirchhoff’s Method and Boundary Layer Method

The wavefield is investigated in a two-dimensional problem of nontangential incidence of high-frequency wave from a point source on an impedance contour with a jump in curvature. The field in the vicinity of the limit ray is described in detail. It is shown that expressions found within Kirchhoff’s...

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Bibliographic Details
Published in:Journal of communications technology & electronics 2022-02, Vol.67 (2), p.130-139
Main Authors: Zlobina, E. A., Kiselev, A. P.
Format: Article
Language:English
Subjects:
Boundary layers
Communications Engineering
Contours
Curvature
Electrodynamics and Wave Propagation
Engineering
Impedance
Networks
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Summary:The wavefield is investigated in a two-dimensional problem of nontangential incidence of high-frequency wave from a point source on an impedance contour with a jump in curvature. The field in the vicinity of the limit ray is described in detail. It is shown that expressions found within Kirchhoff’s method agree with results of the boundary layer method. Suitability areas of the expressions obtained are described, which is based upon a detailed study of geometry of the problem.
ISSN:1064-2269
1555-6557
DOI:10.1134/S1064226922020164