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Document Type : Latin Dissertation
Language of Document : English
Record Number : 151599
Doc. No : ET23391
Main Entry : XU Bai Yu
Title Proper : Unusual Radiation Characteristics in Vacuum and in Some Anisotropic Media
Note : This document is digital این مدرک بصورت الکترونیکی می باشد
Abstract : This thesis investigates the unusual radial dependence of electromagnetic (ELI)radiation transmitted by a localized source. Three related topics are studied asfollows.EM missiles - The retarded solution to the inhomogeneous wave equation inelectrodynamics is studied with a purpose to understand Wu's missile and sub-sequently the radial dependence of energy transmitted by transient sources. Thefinite rate of change of the source current is shown to imply the inverse-square lawat a sufficient1~- large distance. the region of which is determined by the minimumscale time t , of the current and may be called the (generalized) Fraunhofer region.11-ith a uniform disk source. the electric field on the symmetry axis for a wide rangeis shown equal to the difference of the current a t two times. Hence examples withanal!-tic results are given to demonstrate clearly how the pulse energy decreasesivitli distance a t a much slower rate in the (generalized) Fresnel region and how.....-....,....-...,..tested for theQ1 PC1 bus cardBoth these projects mere sofixare des elopment efforts tonards contributing to dlfferentaspects of Roboucs and lZ1echatronics projects m the Controls and Roboucs Group..
Subject : Electericl tess
: برق
electronic file name : TL46630.pdf
Title and statement of responsibility and : Unusual Radiation Characteristics in Vacuum and in Some Anisotropic Media [Thesis]
 
 
 
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