Accession Number : AD0737849

Title :   Field Structure of an Electromagnetic Waveguide and Mechanism of Its Entering a Dissipative Medium,

Corporate Author : INNSBRUCK UNIV (AUSTRIA) ELECTRONICS LAB

Personal Author(s) : Berloffa,Erich

Report Date : 20 OCT 1971

Pagination or Media Count : 29

Abstract : The phenomenon of local periods of antenna receiving voltage was observed by recording a transmitter which is located above ground, 30 km away from the point of reception. An adequate theory had to be developed for describing these periods. In the present report, examinations were based on W. O. Schumann's equations (1): time being eliminated, thus yielding a representation of maximum field strengths of elliptically polarized electromagnetic waves showing only a local dependence. A subsequent expansion of the field strength function in Fourier series helps to explain the result. (Author)

Descriptors :   (*RADIO TRANSMISSION, UNDERGROUND), FOURIER ANALYSIS, SERIES(MATHEMATICS), MEDIUM FREQUENCY, RADIO FIELDS, POLARIZATION, AUSTRIA

Subject Categories : Radiofrequency Wave Propagation

Distribution Statement : APPROVED FOR PUBLIC RELEASE