Journal ArticleDOI
Edge-dislocation waves in the diffraction process by an impedance half-plane
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Edge-dislocation waves, created in the diffraction of plane waves by an impedance half-plane, are examined by the method of modified theory of physical optics and the integrals are decomposed according to their boundaries and evaluated by using uniform asymptotic methods.Abstract:
Edge-dislocation waves, created in the diffraction of plane waves by an impedance half-plane, are examined by the method of modified theory of physical optics. The integrals, obtained by a related technique, are decomposed according to their boundaries and evaluated by using uniform asymptotic methods. The results are plotted and are investigated numerically.read more
Citations
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Modified diffraction theory of Kirchhoff
TL;DR: The diffraction theory of Kirchhoff is reinterpreted and a new form of a surface diffraction integral is developed by using the axioms of the modified theory of physical optics, which leads to the exact scattered fields by conducting bodies.
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Diffraction of evanescent plane waves by a resistive half-plane.
TL;DR: Diffraction of evanescent plane waves by a resistive half-plane is examined and scattering integrals are constructed with the modified theory of physical optics.
Journal ArticleDOI
MTPO based potential function of the boundary diffraction wave theory
TL;DR: In this article, a potential function is introduced by using the modified theory of physical optics integrals for a perfectly conducting half-plane for diffraction of plane waves by an opaque halfplane for oblique incidence.
Journal ArticleDOI
Uniform theory for the diffraction of evanescent plane waves
TL;DR: In this paper, a uniform diffracted field is obtained in terms of Fresnel functions with complex argument by subtracting the unit step function from the Fresnel integral, which is applied to the problem of diffraction of inhomogeneous plane waves by a perfectly conducting halfplane and wedge.
Journal ArticleDOI
Improved equivalent source theory
TL;DR: The equivalent source theorem, which is an important technique in the study of radiation and scattering by apertures, is improved by using the two axioms of the modified theory of physical optics.
References
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Journal ArticleDOI
Geometrical Theory of Diffraction
TL;DR: The mathematical justification of the theory on the basis of electromagnetic theory is described, and the applicability of this theory, or a modification of it, to other branches of physics is explained.
Journal ArticleDOI
A uniform geometrical theory of diffraction for an edge in a perfectly conducting surface
R.G. Kouyoumjian,P.H. Pathak +1 more
TL;DR: In this article, a compact dyadic diffraction coefficient for electromagnetic waves obliquely incident on a curved edse formed by perfectly conducting curved plane surfaces is obtained, which is based on Keller's method of the canonical problem, which in this case is the perfectly conducting wedge illuminated by cylindrical, conical, and spherical waves.
Journal ArticleDOI
A uniform asymptotic theory of electromagnetic diffraction by a curved wedge
Shung-Wu Lee,G. Deschamps +1 more
TL;DR: In this paper, the diffracted field according to Keller's geometrical theory of diffraction (GTD) can be expressed in a particularly simple form by making use of rotations of the incident and reflected fields about the edge.
Journal ArticleDOI
Modified theory of physical optics.
TL;DR: A new procedure for calculating the scattered fields from a perfectly conducting body is introduced that gives the total field that agrees with the exact solution and the result is more reliable than that of classical PO integral.