Download or read book Diffraction by a Tipped Wedge with Applications to Blunt Edges written by Samuel N. Karp and published by . This book was released on 1953 with total page 18 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Diffraction by a Tipped Wedge written by Sam Karp and published by Forgotten Books. This book was released on 2018-02-07 with total page 34 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Diffraction by a Tipped Wedge: With Applications to Blunt Edges The problem of the diffraction of electromagnetic waves by a cylindrically tipped perfectly conducting wedge under plane wave or line source excitation is treated. Mathematically, this reduces to the problem of finding a solution of the two-dimensional time-reduced wave equation which either vanishes or has a vanishing normal derivative on the surface of the tipped wedge depending upon whether the electric vector or the mag netic vector is normal to the plane of incidence. Series representations of the solutions are obtained in all cases in terms of the eigenfunctions of the Simple wedge problem (where the radius of the cylindrical tip is zero). The far field expressions for the case of the cylindrically tipped wedge under plane wave excitation are obtained for both polarizations. Graphs of the net scattered amplitude are given for the special case of normal incidence on a half-plane with a cylindrical tip of radius a a k-l. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.
Download or read book Electromagnetic Diffraction Modeling and Simulation with MATLAB written by Gökhan Apaydin and published by Artech House. This book was released on 2021-02-28 with total page 364 pages. Available in PDF, EPUB and Kindle. Book excerpt: This exciting new resource presents a comprehensive introduction to the fundamentals of diffraction of two-dimensional canonical structures, including wedge, strip, and triangular cylinder with different boundary conditions. Maxwell equations are discussed, along with wave equation and scattered, diffracted and fringe fields. Geometric optics, as well as the geometric theory of diffraction are explained. With MATLAB scripts included for several well-known electromagnetic diffraction problems, this book discusses diffraction fundamentals of two-dimensional structures with different boundary conditions and analytical numerical methods that are used to show diffraction. The book introduces fundamental concepts of electromagnetic problems, identities, and definitions for diffraction modeling. Basic coordinate systems, boundary conditions, wave equation, and Green’s function problem are given. The scattered fields, diffracted fields, and fringe fields, radar cross section for diffraction modeling are presented. Behaviors of electromagnetic waves around the two-dimensional canonical wedge and canonical strip are also explored. Diffraction of trilateral cylinders and wedges with rounded edges is investigated as well as double tip diffraction using Finite Difference Time Domain and Method of Moments. A MATLAB based virtual tool, developed with graphical user interface (GUI), for the visualization of both fringe currents and fringe waves is included, using numerical FDTD and MoM algorithm and High-Frequency Asymptotics approaches.
Download or read book Diffraction by an Immersed Elastic Wedge written by Jean-Pierre Croisille and published by Springer. This book was released on 2006-11-15 with total page 138 pages. Available in PDF, EPUB and Kindle. Book excerpt: This monograph presents the mathematical description and numerical computation of the high-frequency diffracted wave by an immersed elastic wave with normal incidence. The mathematical analysis is based on the explicit description of the principal symbol of the pseudo-differential operator connected with the coupled linear problem elasticity/fluid by the wedge interface. This description is subsequently used to derive an accurate numerical computation of diffraction diagrams for different incoming waves in the fluid, and for different wedge angles. The method can be applied to any problem of coupled waves by a wedge interface. This work is of interest for any researcher concerned with high frequency wave scattering, especially mathematicians, acousticians, engineers.
Download or read book Electromagnetic Radiation Scattering and Diffraction written by Prabhakar H. Pathak and published by John Wiley & Sons. This book was released on 2021-12-07 with total page 1156 pages. Available in PDF, EPUB and Kindle. Book excerpt: Electromagnetic Radiation, Scattering, and Diffraction Discover a graduate-level text for students specializing in electromagnetic wave radiation, scattering, and diffraction for engineering applications In Electromagnetic Radiation, Scattering and Diffraction, distinguished authors Drs. Prabhakar H. Pathak and Robert J. Burkholder deliver a thorough exploration of the behavior of electromagnetic fields in radiation, scattering, and guided wave environments. The book tackles its subject from first principles and includes coverage of low and high frequencies. It stresses physical interpretations of the electromagnetic wave phenomena along with their underlying mathematics. The authors emphasize fundamental principles and provide numerous examples to illustrate the concepts contained within. Students with a limited undergraduate electromagnetic background will rapidly and systematically advance their understanding of electromagnetic wave theory until they can complete useful and important graduate-level work on electromagnetic wave problems. Electromagnetic Radiation, Scattering and Diffraction also serves as a practical companion for students trying to simulate problems with commercial EM software and trying to better interpret their results. Readers will also benefit from the breadth and depth of topics, such as: Basic equations governing all electromagnetic (EM) phenomena at macroscopic scales are presented systematically. Stationary and relativistic moving boundary conditions are developed. Waves in planar multilayered isotropic and anisotropic media are analyzed. EM theorems are introduced and applied to a variety of useful antenna problems. Modal techniques are presented for analyzing guided wave and periodic structures. Potential theory and Green's function methods are developed to treat interior and exterior EM problems. Asymptotic High Frequency methods are developed for evaluating radiation Integrals to extract ray fields. Edge and surface diffracted ray fields, as well as surface, leaky and lateral wave fields are obtained. A collective ray analysis for finite conformal antenna phased arrays is developed. EM beams are introduced and provide useful basis functions. Integral equations and their numerical solutions via the method of moments are developed. The fast multipole method is presented. Low frequency breakdown is studied. Characteristic modes are discussed. Perfect for graduate students studying electromagnetic theory, Electromagnetic Radiation, Scattering, and Diffraction is an invaluable resource for professional electromagnetic engineers and researchers working in this area.
Download or read book DIFFRACTION BY A REFRACTING WEDGE written by MICHAEL. PAPADOPOULOS and published by . This book was released on 1962 with total page 1 pages. Available in PDF, EPUB and Kindle. Book excerpt: The refraction and scattering of acoustic plane waves following their arrival at the tip of a refracting wedge are examined. The scattered field contains not only plane waves reflected from the plane walls of the prisms but also the field diffracted at the sharp edge. It is not necessary to discuss the dominant refraction effects in any detail because they are so wellknown. The diffraction properties however, are quite unknown. To understand these properties it is necessary to consider the mathematical difficulty of defining a normal derivative on the inside of an acute-angled wedge close to the vertex. It ay be that the uniform use of the interaction conditions across the refracting surfaces at all distances from the vertex leads to no solution, and that the only well-set problem of this type may be one where the wedge has a rounded tip (as when the wedge is of hyperbolic section) with large curvature. The nature of the local field near the edge of a dielectric wedge has, in fact, been examined by taking the local expansion of the field in power series involving distance from the wedge it is not necessarily good for anything more than the electrostatic situation. (Author).
Download or read book Diffraction by an Immersed Elastic Wedge written by Jean-Pierre Croisille and published by . This book was released on 2014-01-15 with total page 150 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book DIFFRACTION OF WAVES BY A WEDGE written by American University (Washington, D.C.) and published by . This book was released on 1954 with total page 22 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Edge and Tip Diffractions written by Kamill Davydovich Klem-Musatov and published by SEG Books. This book was released on 2008 with total page 227 pages. Available in PDF, EPUB and Kindle. Book excerpt: Seismic diffractions are inevitable, and the edge and tip wave theory of diffractions provides a physically sound and mathematically consistent method of computing diffraction phenomena in realistic geologic models. In this book, theoretical derivations are followed by their numerical implementation and application to real exploration problems.
Download or read book Scattering and Diffraction by Wedges 2 written by Vito G. Daniele and published by John Wiley & Sons. This book was released on 2020-10-29 with total page 240 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book has a dual purpose. The first is to expose a general methodology to solve problems of electromagnetism in geometries constituted of angular regions. The second is to bring the solutions of some canonical problems of fundamental importance in modern electromagnetic engineering with the use of the Wiener-Hopf technique. In particular, the general mathematical methodology is very ingenious and original. It is based on sophisticated and attractive procedures exploiting simple and advanced properties of analytical functions. Once the reader has acquired the methodology, she/he can easily obtain the solution of the canonical problems reported in the book. The book can be appealing also to readers who are not directly interested in the detailed mathematical methodology and/ or in electromagnetics. In fact the same methodology can be extended to acoustics and elasticity problems. Moreover, the proposed practical problems with their solutions constitute a list of reference solutions and can be of interests in engineering production in the field of radio propagations, electromagnetic compatibility and radar technologies.
Download or read book Stationary Diffraction by Wedges written by Alexander Komech and published by Springer Nature. This book was released on 2019-09-16 with total page 167 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents a new and original method for the solution of boundary value problems in angles for second-order elliptic equations with constant coefficients and arbitrary boundary operators. This method turns out to be applicable to many different areas of mathematical physics, in particular to diffraction problems in angles and to the study of trapped modes on a sloping beach. Giving the reader the opportunity to master the techniques of the modern theory of diffraction, the book introduces methods of distributions, complex Fourier transforms, pseudo-differential operators, Riemann surfaces, automorphic functions, and the Riemann–Hilbert problem. The book will be useful for students, postgraduates and specialists interested in the application of modern mathematics to wave propagation and diffraction problems.
Download or read book Application of Wedge Diffraction to Antenna Theory written by R. C. Rudduck and published by . This book was released on 1966 with total page 76 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Radiation and Propagation of Electromagnetic Waves written by George Tyras and published by Academic Press. This book was released on 2013-10-22 with total page 385 pages. Available in PDF, EPUB and Kindle. Book excerpt: Radiation and Propagation of Electromagnetic Waves serves as a text in electrical engineering or electrophysics. The book discusses the electromagnetic theory; plane electromagnetic waves in homogenous isotropic and anisotropic media; and plane electromagnetic waves in inhomogenous stratified media. The text also describes the spectral representation of elementary electromagnetic sources; the field of a dipole in a stratified medium; and radiation in anisotropic plasma. The properties and the procedures of Green's function method of solution, axial currents, as well as cylindrical boundaries are also considered. The book further tackles diffraction by cylindrical structures and apertures on cylindrical structures. Students taking electrical engineering or electrophysics will find the book useful.
Download or read book NASA Technical Report written by and published by . This book was released on 1970 with total page 1096 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Electromagnetic Wave Interactions written by Ardeshir Guran and published by World Scientific. This book was released on 1996-11-22 with total page 415 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is a collection of papers on electromagnetic wave mechanics and its applications written by experts in this field. It offers the reader a sampling of exciting research areas in this field. The topics include polarimetric imaging, radar spectroscopy, surface or creeping waves, bistatic radar scattering, the Seebeck affect. Mathematical methods include inverse scattering theory, singularity expansion method, mixed potential integral equation, method of moments, and diffraction theory. Applications include Cellular Mobile Radios (CMR), radar target identification, and Personal Communication Services (PCS). This book shows how electromagnetic wave theory is currently being utilized and investigated. It involves a modicom of mathematical physics and will be of interest to researchers and graduate students in electrical engineering, physics and applied mathematics.
Download or read book Mechanics Today written by S. Nemat-Nasser and published by Elsevier. This book was released on 2013-10-22 with total page 405 pages. Available in PDF, EPUB and Kindle. Book excerpt: Mechanics Today: Volume 1 is a collection of articles from researchers in the field of applied mechanics. The articles contained in this volume provide the fundamental, analytical and experimental results (where applicable) aspects of the subject matter being discussed. The book has chapters focusing on the dynamic effects in brittle fracture; qualitative theory of the ordinary differential equations of nonlinear elasticity; general variational principles for nonlinear, incremental, and linear elasticity; and the theory of viscometric flow. Physicists, engineers, metallurgists, materials scientists, and students of materials science and applied physics will find this text a good source of information.
Download or read book Subject Index to Unclassified ASTIA Documents written by Defense Documentation Center (U.S.) and published by . This book was released on 1960 with total page 894 pages. Available in PDF, EPUB and Kindle. Book excerpt:
