
Accession Number : ADA117993
Title : The Horizontal Wire over Earth as a Transmission Line: A Model SurfaceImpedance Approach.
Descriptive Note : Technical memo.,
Corporate Author : HARRY DIAMOND LABS ADELPHI MD
Personal Author(s) : Wilson,Monti R
PDF Url : ADA117993
Report Date : Jul 1982
Pagination or Media Count : 78
Abstract : A simple model formulation and exact solution ia given for the perunitlength surface impedance that characterizes the finite conducting earth in a transmissionline approximation of the response of a horizontal wire over earth to incident electromagnetic fields. The twodimensional inhomogeneous plane waves in the model are discussed, and a transparent formulation and solution of the wavevector dispersion relation is presented in terms of a complex refractionangle formalism. Finally, we consider a TM (transverse magnetic) purely vectorpotential model of the wire over ground in order to show that the TM surfaceimpedance model explicity excludes TE (transverse electric) waves and is, in fact, identical to the familiar transmission line. (Author)
Descriptors : *TRANSMISSION LINES, ELECTRIC CABLES, AIRBORNE, HORIZONTAL ORIENTATION, ELECTROMAGNETIC FIELDS, EARTH(PLANET), SURFACES, ELECTRICAL IMPEDANCE, PLANE WAVES, DISPERSION RELATIONS
Subject Categories : Radiofrequency Wave Propagation
Distribution Statement : APPROVED FOR PUBLIC RELEASE