Accession Number : AD0281806

Title :   MODES IN LOSSY STRATIFIED MEDIA WITH APPLICATION TO UNDERGROUND PROPAGATION OF RADIO WAVES,

Corporate Author : TRG INC EAST BOSTON MASS

Personal Author(s) : Viggh,Mats E.

Report Date : 20 APR 1962

Pagination or Media Count : 48

Abstract : The problem considered is that of determining the complex propagation constant of a plane wave on a flat layer of lossy dielectric with a loss-tangent, less than one, and of uniform thickness, surrounded on both sides by identical layers having a loss-tangent greater than the skin depth. A formula given, relating this propagation constant to the path loss between two antennas provided their excitation efficiencies are known. Frequencies between 1 kc/s and 10 Mc/s are covered, as well as values on thickness of the middle layers ranging from 10 meters to 200 meters. (Author)

Descriptors :   *ELECTROMAGNETIC RADIATION, *PROPAGATION, *RADIO WAVES, *ROCK (GEOLOGY), DIELECTRICS, ELECTRICAL PROPERTIES, HIGH FREQUENCY, LOW FREQUENCY, MEDIUM FREQUENCY, VERY HIGH FREQUENCY, VERY LOW FREQUENCY

Distribution Statement : APPROVED FOR PUBLIC RELEASE