Scattering Of Wedges And Cones With Impedance Boundary Conditions
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Scattering Of Wedges And Cones With Impedance Boundary Conditions
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Author : Mikhail A. Lyalinov
language : en
Publisher: IET
Release Date : 2013
Scattering Of Wedges And Cones With Impedance Boundary Conditions written by Mikhail A. Lyalinov and has been published by IET this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013 with Science categories.
This book discusses the development of new approaches which lead to exact (but not explicit) solutions of key canonical problems like diffraction by an impedance wedge or cone. Includes calculations of the diffraction or excitation coefficients, including their uniform versions, for the diffracted waves from the edge of the wedge or from the vertex of the cone. Study of the farfield behaviour in diffraction by impedance wedges or cones, reflected waves, space waves from the singular points of the boundary (from edges or tips) and surface waves. Applicability of the reported solution procedures and formulae to existing software packages designed for solving realworld highfrequency problems encountered in antenna, wave propagation and radar cross section.
Scattering Of Wedges And Cones With Impedance Boundary Conditions
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Author : Mikhail A. Lyalinov
language : en
Publisher:
Release Date : 2013
Scattering Of Wedges And Cones With Impedance Boundary Conditions written by Mikhail A. Lyalinov and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013 with Electromagnetic waves categories.
Scattering And Diffraction By Wedges 2
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Author : Vito G. Daniele
language : en
Publisher: John Wiley & Sons
Release Date : 2020-10-29
Scattering And Diffraction By Wedges 2 written by Vito G. Daniele and has been published by John Wiley & Sons this book supported file pdf, txt, epub, kindle and other format this book has been release on 2020-10-29 with Technology & Engineering categories.
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.
Modern Electromagnetic Scattering Theory With Applications
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Author : Andrey V. Osipov
language : en
Publisher: John Wiley & Sons
Release Date : 2017-04-17
Modern Electromagnetic Scattering Theory With Applications written by Andrey V. Osipov and has been published by John Wiley & Sons this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017-04-17 with Technology & Engineering categories.
This self-contained book gives fundamental knowledge about scattering and diffraction of electromagnetic waves and fills the gap between general electromagnetic theory courses and collections of engineering formulas. The book is a tutorial for advanced students learning the mathematics and physics of electromagnetic scattering and curious to know how engineering concepts and techniques relate to the foundations of electromagnetics
Scattering And Diffraction By Wedges 1
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Author : Vito G. Daniele
language : en
Publisher: John Wiley & Sons
Release Date : 2020-09-21
Scattering And Diffraction By Wedges 1 written by Vito G. Daniele and has been published by John Wiley & Sons this book supported file pdf, txt, epub, kindle and other format this book has been release on 2020-09-21 with Science categories.
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, they 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 interest in engineering production in the field of radio propagations, electromagnetic compatibility and radar technologies.
Fundamentals Of The Physical Theory Of Diffraction
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Author : Pyotr Ya. Ufimtsev
language : en
Publisher: John Wiley & Sons
Release Date : 2014-05-19
Fundamentals Of The Physical Theory Of Diffraction written by Pyotr Ya. Ufimtsev and has been published by John Wiley & Sons this book supported file pdf, txt, epub, kindle and other format this book has been release on 2014-05-19 with Science categories.
The book is a complete, comprehensive description of the modern Physical Theory of Diffraction (PTD) based upon the concept of elementary edge waves. The theory is demonstrated with examples of the diffraction of acoustic and electromagnetic waves at perfectly reflecting objects. Readers develop the skills to apply PTD to solve various scattering problems. The derived analytic expressions clearly illustrate the physical structure of the scattered field. They additionally describe all of the reflected and diffracted rays and beams, as well as the fields in the vicinity of caustics and foci. Shadow radiation, a fundamental component of PTD, is introduced and proven to contain half the total scattered power. The equivalence relationships between acoustic and electromagnetic diffracted waves are established and emphasized. Throughout the book, the author enables readers to master both the theory and its practical applications. Plotted numeric results supplement the theory and facilitate the visualization of individual contributions of distinct parts of the scattering objects to the total diffracted field Detailed comments help readers understand and implement all the critical steps of the analytic and numeric calculations Problem sets in each chapter give readers an opportunity to analyse and investigate the diffraction phenomena
Impedance Boundary Conditions In Electromagnetics
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Author : Daniel J. Hoppe
language : en
Publisher: CRC Press
Release Date : 2018-10-08
Impedance Boundary Conditions In Electromagnetics written by Daniel J. Hoppe and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-10-08 with Technology & Engineering categories.
Electromagnetic scattering from complex objects has been an area of in-depth research for many years. A variety of solution methodologies have been developed and utilised for the solution of ever increasingly complex problems. Among these methodologies, the subject of impedance boundary conditions has interested the authors for some time. In short, impedance boundary conditions allow one to replace a complex structure with an appropriate impedance relationship between the electric and magnetic fields on the surface of the object. This simplifies the solution of the problem considerably, allowing one to ignore the complexity of the internal structure beneath the surface. This book examines impedance boundary conditions in electromagnetics. The introductory chapter provides a presentation of the role of the impedance boundary conditions in solving practical electromagnetic problems and some historical background. One of the main objectives of this book is to present a unified and thorough discussion of this important subject. A method based on a spectral domain approach is presented to derive the Higher Order Impedance Boundary Conditions (HOIBC). The method includes all of the existing approximate boundary conditions, such as the Standard Impedence Boundary Condition, the Tensor Impedence Boundary Condition and the Generalised Impedance Boundary Conditions, as special cases. The special domain approach is applicable to complex coatings and surface treatments as well as simple dielectric coatings. The spectral domain approach is employed to determine the appropriate boundary conditions for planar dielectric coatings, chiral coatings and corregated conductors. The accuracy of the proposal boundary conditions is discussed. The approach is then extended to include the effects of curvature and is applied to curved dielectric and chiral coatings. Numerical data is presented to critically assess the accuracy of the results obtained using various forms of the impedence boundary conditions. A number of appendices that provide more detail on some of the topics addressed in the main body of the book and a selective list of references directly related to the topics addressed in this book are also included.
The Method Of The Generalised Eikonal
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Author : Michael V. Vesnik
language : en
Publisher: Walter de Gruyter GmbH & Co KG
Release Date : 2015-07-24
The Method Of The Generalised Eikonal written by Michael V. Vesnik and has been published by Walter de Gruyter GmbH & Co KG this book supported file pdf, txt, epub, kindle and other format this book has been release on 2015-07-24 with Science categories.
Diffraction theory describes scattering mechanisms for waves of various physical nature, scattered by objects of different shapes and materials. This book proposes new methods to account for the contour shape, edge profile and boundary conditions of three-dimensional scatterers (in particularly, flat polygons and polyhedrals). A standard method to refine the physical optics approximation (PO) is the heuristic method of edge waves (MEW). In comparison with MEW, the presented approaches simplify the solving and refining the PO approximation without solving a corresponding two-dimensional problem. Furthermore these methods allow to take into account the field perturbation in the vicinity of vertices. While the analytical formulas obtained by using these new approaches are as simple as in the PO case, the accuracy can be even higher than for MEW. On the basis of the developed methods construction of solutions for wave propagation in urban area and elastic wave diffraction (including seismic waves) are proposed. The book is useful for specialists who solve scientific and engineering problems in wave propagation and for students and postgraduate students.
Electromagnetic Scattering By Coated Convex Surfaces And Wedges Simulated By Approximate Boundary Conditions
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Author : Hasnain H. Syed
language : en
Publisher:
Release Date : 1992
Electromagnetic Scattering By Coated Convex Surfaces And Wedges Simulated By Approximate Boundary Conditions written by Hasnain H. Syed and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1992 with Electromagnetic waves categories.
Advanced Theory Of Diffraction By A Semi Infinite Impedance Cone
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Author : J.M.L Bernard
language : en
Publisher: ALPHA SCIENCE INTERNATIONAL LIMITED
Release Date : 2014-07-11
Advanced Theory Of Diffraction By A Semi Infinite Impedance Cone written by J.M.L Bernard and has been published by ALPHA SCIENCE INTERNATIONAL LIMITED this book supported file pdf, txt, epub, kindle and other format this book has been release on 2014-07-11 with Mathematics categories.
The mathematical problem concerning the diffraction by a semi-infinite cone with circular cross section for the Helmholtz equation, which has well-known solutions for Dirichlet and Neumann boundary conditions, is here considered for the more general boundary condition of constant impedance type. As previously stated by D.S. Jones, the problem then changes in complexity, beginning with the difficulty of obtaining the uniqueness of the solution. An exact analytical method is developed to reduce this problem to the determination of the solution of a well-posed non-oscillatory integral equation, of which the solution can be directly used to express the field in an integral form. Some generalization, in particular to the electromagnetic case, are also given.