Download or read book On mode conversion in the Earth crust waveguide written by James R. Wait and published by . This book was released on 1972 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt: Adopting an idealized two-dimensional model, the mode conversion problem is solved formally for an abrupt change of waveguide thickness. Some numerical results for the appropriate coupling factors are given. The latter tell us how an incident mode of order m is converted into a mode of order n. It would appear that energy loss due to mode conversion in non-uniform earth-crust waveguides is a relatively unimportant limitation. (Author).
Download or read book Mode Conversion in the Earth ionosphere Waveguide written by James R. Wait and published by . This book was released on 1962 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt: An approximate theory for conversion of modes in an earth-ionosphere waveguide is propounded.The model is two concentric spherical reflecting boundaries which have prescribed surface impedances.The localized irregularity at either the ground or the ionosphere is idealized by a 'black screen' which effectively blocks the cross-section of the waveguide over a portion of its area.In this sense, the method is a union of approximate Kirchoff diffraction theory and rigorous mode theory.(Author).
Download or read book Mode Conversion in the Earth ionosphere Waveguide NBS Technical Note 151 written by James R Wait and published by Hassell Street Press. This book was released on 2021-09-10 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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. To ensure a quality reading experience, this work has been proofread and republished using a format that seamlessly blends the original graphical elements with text in an easy-to-read typeface. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.
Download or read book Mode Conversion in the Earth ionosphere Waveguide written by James R. Wait and published by . This book was released on 1962 with total page 18 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Mode Conversion in Earth ionosphere Waveguide with List of References written by and published by . This book was released on 1962 with total page 18 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Electromagnetic Waves in Stratified Media written by James R. Wait and published by Elsevier. This book was released on 2013-10-22 with total page 621 pages. Available in PDF, EPUB and Kindle. Book excerpt: International Series of Monographs in Electromagnetic Waves, Volume 3: Electromagnetic Waves in Stratified Media provides information pertinent to the electromagnetic waves in media whose properties differ in one particular direction. This book discusses the important feature of the waves that enables communications at global distances. Organized into 13 chapters, this volume begins with an overview of the general analysis for the electromagnetic response of a plane stratified medium comprising of any number of parallel homogeneous layers. This text then explains the reflection of electromagnetic waves from planar stratified media. Other chapters consider the oblique reflection of plane electromagnetic waves from a continuously stratified medium. This book discusses as well the fundamental theory of wave propagation around a sphere. The final chapter deals with the theory of propagation in a spherically stratified medium. This book is a valuable resource for electrical engineers, scientists, and research workers.
Download or read book Mode Conversion and Single Mode Excitation in the Earth Ionosphere Waveguide with Arbitrary Terrestrial Magnetic Field written by Ernst Ledinegg and published by . This book was released on 1975 with total page 97 pages. Available in PDF, EPUB and Kindle. Book excerpt: The present Final Report contains the continuation and extension of investigations on the propagation of electromagnetic VLF waves in polar regions. The extension considered in this report concerns mainly the terrestrial magnetic field. Part I is devoted to general theoretical considerations. It deals with the derivation of a fictitious surface impedance of the plane ionospheric boundary which mimics the influence of the ionosphere on wave propagation through the atmosphere. In Part II the surface impedance derived in Part I is applied to two waveguide models, the plane two-dimensional and the cylindrical model. In Part III the possibilities for suppressing or favouring the excitation of certain modes in the earth-ionosphere waveguide by a suitable antenna array are discussed.
Download or read book Annual Report written by United States. Dept. of Commerce. Office of Telecommunications and published by . This book was released on 1973 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Calculated Mode Conversion Coefficients for Graded Height Change in the Earth ionosphere Waveguide at VLF written by K. P. Spies and published by . This book was released on 1968 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Calculated Mode Conversion Coefficients for a Graded Height Change in the Earth ionosphere Waveguide at VLF by Kenneth P Spies and James R Wait written by Kenneth P. Spies and published by . This book was released on 1968 with total page 196 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book ESSA Science and Engineering July 13 1965 to June 30 1967 written by United States. Environmental Science Services Administration and published by . This book was released on 1968 with total page 174 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book ESSA Science and Engineering written by United States. Environmental Science Services Administration and published by . This book was released on 1968 with total page 164 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Electromagnetic Wave Theory written by J. C. Brown and published by Elsevier. This book was released on 2016-01-21 with total page 558 pages. Available in PDF, EPUB and Kindle. Book excerpt: International Series of Monographs in Electromagnetic Waves, Volume 11: Electromagnetic Wave Theory, Part 1 covers the proceedings of an International Scientific Radio Union (U.R.S.I.) Symposium on Electromagnetic Wave Theory. The book contains 61 chapters that are organized into three sections. The first section presents papers about wave propagation, which includes lateral waves; terrestrial waveguides; and plane waves in dissipative media. Next, the title reviews studies about wave guides, including basic properties of periodic waveguides; theoretical investigation of non-uniform waveguides; and waves in a coaxial line partially filled with plasma. The last section covers topics about surface waves, such as a dielectric prism in the corner of overmoded waveguide; lasers and optical communication systems; and microwave and laser resonators. The text will be of great use to researchers and practitioners of disciplines that study or utilize electromagnetic wave technologies, such as electrotechnics and electrical engineering.
Download or read book Progress Report written by United States. Dept. of Commerce. Office of Telecommunications and published by . This book was released on 1973 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Made Conversion in the Earth Ionosphere Waveguide Classic Reprint written by James R. Wait and published by Forgotten Books. This book was released on 2017-10-28 with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Made Conversion in the Earth-Ionosphere Waveguide The method is based on a union of approximate Kirchoff diffraction theory and rigorous mode theory. To simplify the discussion, the problem is considered to be two-dimensional in nature and, thus. 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 ESSA Science and Engineering July 31 1965 to June 30 1967 written by United States. Environmental Science Services Administration and published by . This book was released on 1968 with total page 164 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Simplified Mode Conversion Program for VLF Propagation in the Earth Ionosphere Waveguide written by Richard A. Pappert and published by . This book was released on 1974 with total page 64 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report presents a variation of an earlier mode conversion program for numerically determining mode conversion coefficients and mode sums for a waveguide which is inhomogeneous along the direction of propagation (invariance normal to the transmitter receiver line is assumed and reflections due to the horizontal inhomogeneity are neglected). Although somewhat more approximate than the earlier program the present version has the advantage of not requiring a full wave fields program for the height gain calculations and can be implemented with about the same ease as a WKB program. It has one advantage over the WKB formulation and that is that mode numbering along the horizontal inhomogeneity is immaterial. The mode conversion program will yield mode conversion coefficients and a mode sum plot for ground based vertical dipole excitation of the vertical electric field at the ground as a function of distance from the transmitter. Since the mode conversion coefficients are independent of transmitter terminator distance, allowance has also been made for incrementing the latter distance and plotting mode sums for the incremented distances.
