Accession Number : AD0264350

Title :   PROPAGATION OF PLANE ELECTROMAGNETIC WAVES THROUGH LOSSY DIELECTRIC MEDIA

Corporate Author : NAVAL ORDNANCE LAB WHITE OAK MD

Personal Author(s) : HILL,L.L. ; MARSHALL,T.

Report Date : AUG 1961

Pagination or Media Count : 19

Abstract : Starting with the electromagnetic field equations, the necessary formulae for describing the propagation of plane electromagnetic waves through a series of dielectric slabs are derived. The dielectrics are assumed homogeneous, isotropic and lossy. The results take the form of the amplitude reflection and transmission coefficients which are expressed in terms of the propagation constants of the various dielectrics. The special case of an unknown medium contained between two low-loss windows is considered. When the windows are designed to be half-wave plates, the reflection and transmission coefficients are considerably simplified. The complex conductivity is taken to be the fundamental quantity which describes the lossy materials. (Author)

Descriptors :   *DIELECTRICS, *DIFFERENTIAL EQUATIONS, *ELECTROMAGNETIC FIELDS, *ELECTROMAGNETIC RADIATION, *MAGNETIC FIELDS, *SHOCK TUBES, CALIBRATION, ELECTRICAL CONDUCTIVITY, ELECTRICAL PROPERTIES, GAS FLOW, GAS IONIZATION, HYPERSONIC CHARACTERISTICS, HYPERSONIC FLOW, HYPERSONIC VEHICLES, MEASUREMENT, PARTIAL DIFFERENTIAL EQUATIONS, PROPANOLS, REENTRY VEHICLES, REFLECTION, REFRACTIVE INDEX, SHEETS, THEORY, VECTOR ANALYSIS, VELOCITY, WAVE PROPAGATION

Distribution Statement : APPROVED FOR PUBLIC RELEASE