A hybrid finite element/boundary element technique (FEM/BEM) is presented for the analysis of plane wave scattering from an axially corrugated cylinder of arbitrary geometric and material parameters. Inside the periodic structure a cylinder of infinite length composed of a piecewise uniform isotropic medium moving uniformly in the axial direction is also considered. Covariant-projection edge elements are employed in the inhomogeneous region of the unit cell to solve the Maxwell-Minkowski equations, whilst the scattered field is expanded in terms of cylindrical Floquet harmonics. Numerical results, for both TEz and TMz polarised incident fields, are presented and validated as far as was possible
Finite element analysis of electromagnetic wave scattering by a cylinder moving along its axis surrounded by a longitudinal corrugated structure / A. FRENI; MIAS C.; FERRARI R. L.. - In: IEEE TRANSACTIONS ON MAGNETICS. - ISSN 0018-9464. - STAMPA. - 32:(1996), pp. 874-877. [10.1109/20.497380]
Finite element analysis of electromagnetic wave scattering by a cylinder moving along its axis surrounded by a longitudinal corrugated structure
FRENI, ANGELO;
1996
Abstract
A hybrid finite element/boundary element technique (FEM/BEM) is presented for the analysis of plane wave scattering from an axially corrugated cylinder of arbitrary geometric and material parameters. Inside the periodic structure a cylinder of infinite length composed of a piecewise uniform isotropic medium moving uniformly in the axial direction is also considered. Covariant-projection edge elements are employed in the inhomogeneous region of the unit cell to solve the Maxwell-Minkowski equations, whilst the scattered field is expanded in terms of cylindrical Floquet harmonics. Numerical results, for both TEz and TMz polarised incident fields, are presented and validated as far as was possible
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