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Electromagnetic Wave Diffraction by Conducting Screens pseudodifferential operators in diffraction problems

Electromagnetic Wave Diffraction by Conducting Screens pseudodifferential operators in diffraction problems PDF Author: Yu. G. Smirnov
Publisher: CRC Press
ISBN: 0429610564
Category : Science
Languages : en
Pages : 127

Book Description
This book covers the latest problems of modern mathematical methods for three-dimensional problems of diffraction by arbitrary conducting screens. This comprehensive study provides an introduction to methods of constructing generalized solutions, elements of potential theory, and other underlying mathematical tools. The problem settings, which turn out to be extremely effective, differ significantly from the known approaches and are based on the original concept of vector spaces 'produced' by Maxwell equations. The formalism of pseudodifferential operators enables to prove uniqueness theorems and the Fredholm property for all problems studied. Readers will gain essential insight into the state-of-the-art technique of investigating three-dimensional problems for closed and unclosed screens based on systems of pseudodifferential equations. A detailed treatment of the properties of their kernels, in particular degenerated, is included. Special attention is given to the study of smoothness of generalized solutions and properties of traces.

Electromagnetic Wave Diffraction by Conducting Screens pseudodifferential operators in diffraction problems

Electromagnetic Wave Diffraction by Conducting Screens pseudodifferential operators in diffraction problems PDF Author: Yu. G. Smirnov
Publisher: CRC Press
ISBN: 0429610564
Category : Science
Languages : en
Pages : 127

Book Description
This book covers the latest problems of modern mathematical methods for three-dimensional problems of diffraction by arbitrary conducting screens. This comprehensive study provides an introduction to methods of constructing generalized solutions, elements of potential theory, and other underlying mathematical tools. The problem settings, which turn out to be extremely effective, differ significantly from the known approaches and are based on the original concept of vector spaces 'produced' by Maxwell equations. The formalism of pseudodifferential operators enables to prove uniqueness theorems and the Fredholm property for all problems studied. Readers will gain essential insight into the state-of-the-art technique of investigating three-dimensional problems for closed and unclosed screens based on systems of pseudodifferential equations. A detailed treatment of the properties of their kernels, in particular degenerated, is included. Special attention is given to the study of smoothness of generalized solutions and properties of traces.

Two Methods for the Exact Solution of Diffraction Problems

Two Methods for the Exact Solution of Diffraction Problems PDF Author: Frederick E. Alzofon
Publisher: SPIE Press
ISBN: 9780819451415
Category : Science
Languages : en
Pages : 146

Book Description
This text presents two methods of calculating the electromagnetic fields due to radiation scattering by a single scatterer. Both methods yield valid results for all wavelengths of the incident radiation as well as a wide variety of scatterer configurations.

Le concept d’ondes en électromagnétisme et circuits

Le concept d’ondes en électromagnétisme et circuits PDF Author: Henri Baudrand
Publisher: ISTE Group
ISBN: 1784051934
Category : Electric circuits
Languages : fr
Pages : 197

Book Description
Le processus itératif appliqué au concept d’ondes (WCIP, Wave Concept Iterative Process) est développé depuis une vingtaine d’années dans le domaine des circuits, antennes et problèmes de diffraction. Le concept d’ondes en électromagnétisme et circuitsexpose une méthode basée sur l’utilisation du concept d’ondes qui était jusqu’à présent exploité dans les théories des lignes et des guides avec les notions de réflexions et de matrices de diffraction. Elle s’est avérée très utile pour traiter un grand nombre de problèmes d’électromagnétisme, entre autres : les antennes planaires et les dispositifs à éléments actifs. Cette efficacité vient du fait que les itérations présentent la propriété d’être toujours convergentes, contrairement aux méthodes plus classiques. Cet ouvrage présente de multiples applications : surfaces sélectives en fréquences, filtres planaires et circuits intégrés aux substrats, amplificateurs multicouches, antennes, jets photoniques.

Electromagnetic Wave Diffraction by Conducting Screens

Electromagnetic Wave Diffraction by Conducting Screens PDF Author: A. S. Ilʹinskiĭ
Publisher:
ISBN: 9780138758691
Category : Electromagnetic waves
Languages : en
Pages : 114

Book Description
This book covers the latest problems of modern mathematical methods for three-dimensional problems of diffraction by arbitrary conducting screens. This comprehensive study provides an introduction to methods of constructing generalized solutions, elements of potential theory, and other underlying mathematical tools. The problem settings, which turn out to be extremely effective, differ significantly from the known approaches and are based on the original concept of vector spaces 'produced' by Maxwell equations. The formalism of pseudodifferential operators enables to prove uniqueness theorems and the Fredholm property for all problems studied. Readers will gain essential insight into the state-of-the-art technique of investigating three-dimensional problems for closed and unclosed screens based on systems of pseudodifferential equations. A detailed treatment of the properties of their kernels, in particular degenerated, is included. Special attention is given to the study of smoothness of generalized solutions and properties of traces.

Ondes et vibrations. Cours et exercices corrigés

Ondes et vibrations. Cours et exercices corrigés PDF Author: Gravier Étienne
Publisher: Editions Ellipses
ISBN: 2340088011
Category : Science
Languages : fr
Pages : 258

Book Description
Cet ouvrage est destiné aux étudiants en physique, de niveau L2 en licence (cursus physique-chimie, mathématiques-physique ou mécanique), ou de classes préparatoires aux écoles d’ingénieurs. Il peut également intéresser les candidats aux concours de l’enseignement, CAPES et agrégation. Ce livre est composé de neuf chapitres, chacun accompagné d’une série d’exercices avec corrigés détaillés. Les modèles sont simplifiés au maximum pour mettre en valeur les phénomènes physiques. L’objectif est de présenter les notions de base nécessaires à l’étude de la physique des ondes. Les hypothèses sont discutées, les calculs présentés sont détaillés et sont pour la plupart réalisés dans l’espace à une dimension. La notion d’onde et l’équation à laquelle elle obéit sont définies. Les solutions de cette équation permettent de connaître l’évolution de l’onde dans l’espace et dans le temps. Plusieurs cas pratiques sont présentés : les ondes se propageant le long d’une corde ou le long d’un ressort, les ondes acoustiques, les ondes dans les solides, les ondes électromagnétiques. L’étude de l’énergie associée à une onde est également présentée. La notion d’onde stationnaire, avec application notamment aux instruments de musique, est largement développée. Enfin, les milieux dispersifs sont abordés en fin d’ouvrage.