Open AccessRadiation and scattering from a point source on an inhomogeneous substrate
Author(s) -
Hosseininejad Seyed Ehsan,
Abdolali Ali,
Komjani Nader
Publication year - 2014
Publication title -
iet microwaves, antennas and propagation
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.555
H-Index - 69
eISSN - 1751-8733
pISSN - 1751-8725
DOI - 10.1049/iet-map.2013.0544
Subject(s) - scattering , radiation , substrate (aquarium) , point (geometry) , physics , point source , optics , materials science , computational physics , computer science , mathematics , geology , geometry , oceanography
This study presents a powerful analytical approach to investigate wave propagation and radiation in the problem involving a point source on an inhomogeneous substrate. The proposed method is based on using Taylor's series expansion for electromagnetic parameters and Fourier transformed electromagnetic fields of the inhomogeneous medium with continuous spatial variation. The fields in the Fourier domain are obtained by solving a system of linear coupled equations. The validity of the presented method is shown via some special examples. The results of the approach, simulation software and the available exact solutions are in very good agreement.