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Method of Edge Waves in the Physical Theory of Diffraction

P. Ya. Ufimtsev
TLDR
In this article, the diffraction of plane electromagnetic waves by ideally conducting bodies, the surface of which has discontinuities, is investigated, and the linear dimensions of the bodies are assumed to be large in comparison with the wavelength.
Abstract: 
: The diffraction of plane electromagnetic waves by ideally conducting bodies, the surface of which have discontinuities, is investigated in the report. The linear dimensions of the bodies are assumed to be large in comparison with the wavelength. The method developed takes into account the perturbation of the field in the vicinity of the surface discontinuity and allows one to substantially refine the approximations of geometric and physical optics. Expressions are found for the fringing field in the distant zone. A numerical calculation is performed of the scattering characteristics, and a comparison is made with the results of rigorous theory and with experiments.

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Citations
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Book ChapterDOI

Techniques for High-Frequency Problems

Prabhakar H. Pathak
TL;DR: In this article, the authors employ approximations based on high-frequency techniques for performing an efficient analysis of electromagnetic radiating systems that are large in terms of the wavelength, which is not the case for most of the existing techniques.
Journal ArticleDOI

High frequency techniques for antenna analysis

P. Pathak
TL;DR: A summary of various high-frequency techniques for analyzing the electromagnetic radiation from antennas in the presence of their host environment is presented in this paper, where numerical results are compared with those based on other independent methods or with measurements.
Journal ArticleDOI

Bidirectional Analytic Ray Tracing for Fast Computation of Composite Scattering From Electric-Large Target Over a Randomly Rough Surface

Feng Xu, +1 more
- 05 May 2009 - 
TL;DR: In this article, a bidirectional analytic ray tracing (BART) method is developed to rapidly calculate composite scattering from three-dimensional (3D) electrically large complex targets above a randomly rough surface.
Journal ArticleDOI

Comparison of three high-frequency diffraction techniques

Eugene F. Knott, +1 more
TL;DR: In this paper, three high-frequency methods of calculating the scattering from metallic edged bodies are compared, and it is shown that the three share remarkably similar features, although each has its particular virtues and limitations in practical applications.
Journal ArticleDOI

Modal, ray, and beam techniques for analyzing the EM scattering by open-ended waveguide cavities

Prabhakar H. Pathak, +1 more
- 01 May 1989 - 
TL;DR: In this paper, a hybrid combination of asymptotic high-frequency and modal techniques is employed for highfrequency electromagnetic scattering by open-ended waveguide cavities with an interior termination.