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Scattering by a conducting elliptic cylinder with dielectric coating
Author(s) -
Richmond Jack H.
Publication year - 1988
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/rs023i006p01061
Subject(s) - mathieu function , scattering , dielectric , cylinder , galerkin method , transverse plane , physics , coating , boundary value problem , optics , materials science , computational physics , mathematical analysis , geometry , mathematics , composite material , finite element method , quantum mechanics , structural engineering , thermodynamics , engineering
The scattering properties are investigated for a perfectly conducting elliptic cylinder with a homogeneous dielectric coating. In the dielectric coating and in the exterior free space region, the field is expanded in elliptic waves via the Mathieu functions. The Mathieu angular functions are employed as basis and testing functions to enforce the boundary conditions via Galerkin's method at the interface between the dielectric and the free space regions. Numerical results are presented in graphical form for the transverse electric and transverse magnetic polarizations to illustrate the backscattering and bistatic scattering angular patterns as well as the backscatter versus frequency.