Accession Number : AD0706367

Title :   THE ELECTROMAGNETIC FIELDS OF A DIPOLE IN A DISSIPATIVE HALF-SPACE: A NUMERICAL APPROACH.

Descriptive Note : Technical rept.,

Corporate Author : HARVARD UNIV CAMBRIDGE MASS DIV OF ENGINEERING AND APPLIED PHYSICS

Personal Author(s) : Siegel,Marvin

Report Date : MAY 1970

Pagination or Media Count : 100

Abstract : The theory for the numerical solution which evaluates the electromagnetic fields of a dipole in a dissipative half-space has been developed which is especially useful where asymptotic forms are not available or valid. In addition, to permit better use of the explicit forms of the asymptotic solutions, the restrictions implicit in the formulation of the approximations for the fields in the three subdivisions of horizontal range (near, intermediate, and asymptotic range) were analyzed. Practical tables were developed showing 'Valid Regions for Application of Banos' Asymptotic Formulas' for sea water, lake water, wet earth, and dry earth, over the useful frequency range. (Author)

Descriptors :   (*DIPOLE ANTENNAS, ANTENNA RADIATION PATTERNS), (*ELECTROMAGNETIC FIELDS, BOUNDARY VALUE PROBLEMS), DIPOLE MOMENTS, NUMERICAL INTEGRATION, NUMERICAL ANALYSIS, COMPUTER PROGRAMS

Subject Categories : Radiofrequency Wave Propagation

Distribution Statement : APPROVED FOR PUBLIC RELEASE