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Diffraction by a dielectric‐loaded wedge
Author(s) -
Mohsen A.,
Hamid M. A. K.
Publication year - 1973
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/rs008i001p00071
Subject(s) - diffraction , dielectric , optics , wedge (geometry) , reciprocity (cultural anthropology) , fresnel diffraction , physics , fresnel integral , dipole , integral equation , plane wave , kirchhoff's diffraction formula , excitation , mathematical analysis , materials science , mathematics , quantum mechanics , psychology , social psychology
The problem of diffraction of an E ‐polarized plane wave by a perfectly conducting wedge, having the illuminated side loaded with a thin dielectric slab of which the relative permittivity is not much larger than unity, is treated. The solution is given in an integral form, consisting of geometrical optics and associated diffraction terms, by applying an approximate boundary condition at the dielectric surface. The diffraction integrals involved are evaluated asymptotically in terms of Fresnel's integrals. Using the reciprocity principle, the results are extended to the cylindrical‐wave excitation. The validity of the results is verified by comparison with experiment for the case of a dipole‐fed dielectric‐loaded strip.