Lanterna Rally
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Scattering and diffraction of radio waves
An Application of the Geometrical Theory of Diffraction to the Scattering of Radio Waves by Irregular Terrain
Author: R. H. Ott
Publisher:
Published: 1968
Total Pages: 80
ISBN-13:
DOWNLOAD EBOOK →In this report, a method is developed for the quantitative evaluation of the effects of large irregularities or obstacles on the propagation of a radio wave. The fundamental tool used is Keller's "geometrical theory of diffraction." In contrast to previous methods for treating this problem, the one proposed here is not limited by 1) the type of terrain, 2) the polarization of the transmitting antenna, 3) the radiation pattern of the antenna, and 4) the frequency of the antenna (provided ka>̲ 5.0, where a is the characteristic dimension of the diffracting obstacle). A numerical example showing the antenna pattern behind a hemispherical hill illustrates the application of the theory.
Scattering and Diffraction of Radio Waves
Propagation, Scattering and Dissipation of Electromagnetic Waves
Author: A. S. Ilʹinskiĭ
Publisher: IET
Published: 1993
Total Pages: 292
ISBN-13: 9780863412837
DOWNLOAD EBOOK →Aimed at physicists and engineers conducting theoretical research or designing microwave and millimetre-wave devices, this study explores methods of calculating microwave absorption in waveguides, resonators and periodic structures.
The Scattering and Diffraction of Waves
Author: Ronold Wyeth Percival King
Publisher:
Published: 1959
Total Pages: 248
ISBN-13:
DOWNLOAD EBOOK →An Application of the Geometrical Theory of Diffraction to the Scattering of Radio Waves by Irregular Terrain
Author: R. H. Ott
Publisher:
Published: 1968
Total Pages: 43
ISBN-13:
DOWNLOAD EBOOK →In this report, a method is developed for the quantitative evaluation of the effects of large irregularities or obstacles on the propagation of a radio wave. The fundamental tool used is Keller's "geometrical theory of diffraction." In contrast to previous methods for treating this problem, the one proposed here is not limited by 1) the type of terrain, 2) the polarization of the transmitting antenna, 3) the radiation pattern of the antenna, and 4) the frequency of the antenna (provided ka >̲ 5.0, where a is the characteristic dimension of the diffracting obstacle). A numerical example showing the antenna pattern behind a hemispherical hill illustrates the application of the theory.
Propagation, Scattering and Diffraction of Electromagnetic Waves
Author: A. S. Ilyinski
Publisher:
Published: 1993
Total Pages:
ISBN-13:
DOWNLOAD EBOOK →The following topics are dealt with:surface-impedance technique; dissipation processes; finite conductivity; waveguides; resonators; electromagnetic-wave diffraction; eigenmodes; anisotropic media; and finitely conducting walls
Bibliography on the Theory of Diffraction and Propagation of Radio Waves
Wave Scattering from Statistically Rough Surfaces
Author: F. G. Bass
Publisher: Elsevier
Published: 2013-10-22
Total Pages: 541
ISBN-13: 1483187756
DOWNLOAD EBOOK →Wave Scattering from Statistically Rough Surfaces discusses the complications in radio physics and hydro-acoustics in relation to wave transmission under settings seen in nature. Some of the topics that are covered include radar and sonar, the effect of variations in topographic relief or ocean waves on the transmission of radio and sound waves, the reproduction of radio waves from the lower layers of the ionosphere, and the oscillations of signals within the earth-ionosphere waveguide. The book begins with some fundamental idea of wave transmission theory and the theory of random processes as used to rough surfaces and to wave fields. This discussion is followed by an analysis of the average fields of sound and electromagnetic waves. A section on spatial correlation characteristics in the approximation of small perturbations is then given. Another chapter of the text explains the Kirchhoff method. The book will provide useful information to physicists, mechanical engineer, students, and researchers in the field of acoustics.
