Title :
Exact image method for field calculation in horizontally layered medium above a conducting ground plane
Author :
Alanen, E. ; Lindell, I.V. ; Hujanen, A.T.
Author_Institution :
Helsinki University of Technology, Electromagnetics Laboratory, Department of Electrical Engineering, Espoo, Finland
fDate :
8/1/1986 12:00:00 AM
Abstract :
It is shown that the inverse Laplace transform of the Fourier domain reflection coefficient of a layered medium can be easily derived by performing the Mittag-Leffler expansion. Thus exact image theory can be used in field calculations. The radiation pattern is readily deduced from the image functions and the surface wave is also deduced from the field integrals. As applied to microstrip structures, the asymptotic approximations agree with the Sommerfeld formulas.
Keywords :
antenna radiation patterns; electromagnetic field theory; strip lines; Fourier domain reflection coefficient; Mittag-Leffler expansion; Sommerfeld formulas; asymptotic approximations; conducting ground plane; exact image theory; field calculations; field integrals; horizontally layered medium; image functions; microstrip structures; radiation pattern; surface wave; universe Laplace transform;
Journal_Title :
Microwaves, Antennas and Propagation, IEE Proceedings H
Conference_Location :
8/1/1986 12:00:00 AM
DOI :
10.1049/ip-h-2.1986.0052
