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Reconstruction of the surface impedance of an inhomogeneous planar boundary beyond layered media
Author(s) -
Yapar Ali,
Akduman Ibrahim
Publication year - 2001
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 - 10.1029/2000rs002529
Subject(s) - planar , surface (topology) , boundary (topology) , boundary value problem , electrical impedance , field (mathematics) , mathematical analysis , scattering , directional derivative , inverse problem , mathematics , geometry , physics , optics , computer science , computer graphics (images) , quantum mechanics , pure mathematics
Determination of the boundary conditions of a surface from the remote field measurements is an important and interesting topic in the inverse scattering theory. As an example of such problems a method is developed for the reconstruction of the surface impedance of a planar boundary beyond a layered structure. The surface impedance is recovered from the boundary condition itself, which requires that the field distribution and its derivative on the surface be known. The measured data are analytically continued to the boundary to obtain the required field expressions. The computed results obtained for some illustrative examples through the theory established here have very good agreement with the exact values, which shows that the method is accurate and effective.