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Pulsed electromagnetic field radiation from a narrow slot antenna with a dielectric layer
Author(s) -
Štumpf M.,
de Hoop A. T.,
Lager I. E.
Publication year - 2010
Publication title -
radio science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.371
H-Index - 84
eISSN - 1944-799X
pISSN - 0048-6604
DOI - 10.1029/2009rs004335
Subject(s) - electromagnetic pulse , antenna (radio) , pulse (music) , electromagnetic field , optics , dielectric , physics , field (mathematics) , electromagnetic radiation , near and far field , radiation , acoustics , radiation pattern , computer science , mathematics , telecommunications , optoelectronics , quantum mechanics , detector , pure mathematics
Analytic time domain expressions are derived for the pulsed electromagnetic field radiated by a narrow slot antenna with a dielectric layer in a two‐dimensional model configuration. In any finite time window of observation, exact pulse shapes for the propagated, reflected, and refracted wave constituents are constructed with the aid of the modified Cagniard method (Cagniard‐DeHoop method). Numerical results are presented for vanishing slot width and field pulse shapes at the dielectric/free space interface. Applications are found in any system whose operation is based on pulsed electromagnetic field transfer and where digital signals are detected and interpreted in dependence on their pulse shapes.