Author: Jerry Shmoys Publisher: Forgotten Books ISBN: 9781333527273 Category : Science Languages : en Pages : 58
Book Description
Excerpt from Diffraction of Electromagnetic Waves by a Plane Wire Grating In the infrared region the grating constant is much greater than a wavelength. In this case one can assume that there is no interaction between the wires of the grating. The diffraction field is taken as the sum of diffrac tion fields of the individual wires of the grating, the field of any one wire calculated neglecting the other wiresl. The grating is assumed to consist of a set of infinite, parallel, equidistant, perfectly conducting circular cylinders. The set may be taken as finite, showing the background in addition to the various order spectra. Only the infinite grating will be considered here. This approach was extended somewhat by'twersky2 who included the first order interaction effects between neighboring elements in the case of an acoustic wave incident on a grat ing of perfectly rigid circular cylinders. 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.
Author: J Shmoys Publisher: Legare Street Press ISBN: 9781019568439 Category : Languages : en Pages : 0
Book Description
This book provides an in-depth analysis of diffraction theory and its applications in electromagnetics. The author explains the theory behind diffraction of electromagnetic waves by a plane wire grating and provides practical examples of its implementation. The book is an essential resource for anyone working in the field of electromagnetics. This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work is in the "public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.
Author: Jack Bazer Publisher: Forgotten Books ISBN: 9780267795680 Category : Mathematics Languages : en Pages : 58
Book Description
Excerpt from Diffraction of Electromagnetic Waves by a Circular Aperture in an Infinitely Conducting Plane Screen Of explicit formulas for the field everywhere in space and for the various field characteristics such as the aperture fields, far fields and transmission coefficients for all m Third, only the most elementary analysis is required in dealing with these representations; no use is made, for example. 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.
Author: Frank Karal Publisher: Forgotten Books ISBN: 9780656200757 Category : Mathematics Languages : en Pages : 82
Book Description
Excerpt from Diffraction of a Skew Plane Electromagnetic Wave by an Absorbing Right-Angled Wedge Considerably more difficult due to the vectorial character of the boundary condi tions. In Section 3 the procedure in our vectorial problem is described more fully, with an explanation of how the method of separation of variables plus proper consideration of edge behavior leads to a unique solution under conditions which are physically meaningful. 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.
Author: Josef Meixner Publisher: Forgotten Books ISBN: 9780365805113 Category : Science Languages : en Pages : 22
Book Description
Excerpt from Diffraction of Electromagnetic Waves by a Slit in a Conducting Plan Between Different Media One of the classical diffraction problems is the problem of diffraction of electromagnetic waves by an infinitely long parallel slit in a perfectly conducting plane embedded in a homogeneous medium. The problem was first treated.by Sieger[i], and extensive numerical results are due especially to Morse and and Skavlem[3]. The general procedure is to expand in terms of Mathieu functions the incident, reflected, and diffracted fields, and then to evaluate explicitly the coef ficients of the series using the boundary conditions. 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.
Author: Fritz Reiche Publisher: Forgotten Books ISBN: 9780267869411 Category : Mathematics Languages : en Pages : 26
Book Description
Excerpt from On Diffraction by an Infinite Grating The diffraction of a plane wave by an infinite grating of identical circular cylinders is considered. It is shown that the various scattered cylindrical waves combine to form a finite number of plane waves and at: infinite number of surface waves. 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.
Author: Samuel N. Karp Publisher: ISBN: 9781332120741 Category : Science Languages : en Pages : 52
Book Description
Excerpt from Diffraction by a Wide Slit Since there already exist numerous investigations of the diffraction of scalar waves by a slit, the addition of another item to the literature requires some explanation. The purpose of the present note is to give an elementary and intuitive account of the diffraction by an infinite conducting plane with a slit. We consider specifically the case of electromagnetic waves whose electric field possesses only a single component, namely a component in the direction parallel to the edges of the slit. The results are also applicable to the acoustic problem, for soft screens. It is found that the results for large slit widths can be expressed approximately in terms of simple well-known functions and that these approximations are more accurate than those conveniently obtainable by previous procedures. The procedures that have hitherto been proposed and applied to this problem fall into three categories. First, there is the exact theory based upon separation of variables in elliptic coordinates. This procedure is useful only when the ratio of slit width to wavelength is small (that is, say, smaller than 3), Second, there are approximation procedures that are valid when the ratio of slit width to wavelength is small. Such procedures, based on the solution of related electrostatic problems, were indicated by Rayleigh and have been Ca developed further by, e.g., Sommerfeld, Groschwitz and Honl, and Bouwkamp. Finally, there are approximate treatments valuable particularly for large ratios of slit widths to wavelength; among these are calculations based on Kirchoff's procedures and their various modifications, and the work of Schwarzschild. A calculation related to that of Schwarzschild has recently been published by Fox in connection with diffraction by a pulse. It should be noted that variational techniques may be applied in conjunction with any of the approximate methods just mentioned. 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.
Author: Jerry Shmoys
Author: J Shmoys
Author: Jerry Shmoys
Author: W. Sollfrey
Author: Jack Bazer
Author: Frank Karal
Author: Josef Meixner
Author: Fritz Reiche
Author: George Lee Baldwin
Author: Samuel N. Karp