Finite element analysis of electromagnetic wave scattering by a cylinder moving along its axis surrounded by a longitudinal corrugated structure

• Published in: IEEE transactions on magnetics Vol. 32; no. 3; pp. 874 - 877
• Main Authors: Freni, A., Mias, C., Ferrari, R.L.
• Format: Journal Article Conference Proceeding
• Language: English
• Published: New York, NY IEEE 01.05.1996; Institute of Electrical and Electronics Engineers
• Subjects: Applied sciences; Diffraction, scattering, reflection; Electromagnetic analysis; Electromagnetic scattering; Exact sciences and technology; Finite element methods; Maxwell equations; Periodic structures; Polarization; Radiocommunications; Radiowave propagation; Scattering parameters; Telecommunications; Telecommunications and information theory; Tellurium; Finite element method; Cylinder; Electromagnetic wave; Backscattering; Boundary element method; Wave scattering
• ISSN: 0018-9464; 1941-0069
• DOI: 10.1109/20.497380

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 TE/sub z/ and TM/sub z/ polarised incident fields, are presented and validated as far as was possible.