Accession Number : AD0466137


Title :   EM PHENOMENA IN THE ELF RANGE: EM FIELDS OF SUBMERGED DIPOLES AND FINITE ANTENNAS


Descriptive Note : Technical rept.


Corporate Author : SACLANT ASW RESEARCH CENTRE LA SPEZIA (ITALY)


Personal Author(s) : Brock-Nannestad, L


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/466137.pdf


Report Date : 01 Jun 1965


Pagination or Media Count : 53


Abstract : The report is the first of a series of three that discusses various EM phenomena in the ELF range. The expressions for the various components of the EM field from submerged dipoles are presented. Although similar expressions can be found in the published literature, one of the purposes of this report is to present them together using the same notations and measuring units. Applications of the theories to special situations such as discontinuities, transients and finite antennas are described and the accuracy of field expressions is determined. Some propagation experiments are briefly mentioned.


Descriptors :   *ELECTROMAGNETIC FIELDS , *PROPAGATION , *DIPOLE ANTENNAS , VOLTAGE , ELECTRIC FIELDS , ELECTRICAL CONDUCTIVITY , DIELECTRIC PROPERTIES , EXTREMELY LOW FREQUENCY , ITALY , RANGE(DISTANCE) , SEA WATER , NOISE(RADIO) , OCEAN BOTTOM , FUNCTIONS(MATHEMATICS) , UNDERWATER , MAGNETIC DIPOLES , THEORY , EXCITATION , TRANSIENTS , MATHEMATICAL ANALYSIS


Subject Categories : Electricity and Magnetism


Distribution Statement : APPROVED FOR PUBLIC RELEASE