A 3D vector variational hybrid finite-element/boundary element formulation for the scattering analysis of arbitrary infinite doubly periodic arrays

Author

Lucas, E.W. ; Fontana, T.P.

Author_Institution

Westinghouse ESG, Baltimore, MD, USA

fYear

1991

fDate

24-28 June 1991

Firstpage

1212

Abstract

The authors summarize a very general vector variation E-field formulation for the problem of plane wave scattering from infinite doubly periodic arrays of volume cells. The cells may contain 3D arbitrary and possibly composite scatterers. The stationary functional was derived using the general variational electromagnetics methodologies of S.K. Jeng (1983). The exact radiation boundary condition is absorbed into the variational functional via surface patch boundary elements. The volume is discretized using tetrahedral edge-based vector finite elements.<>

Keywords

boundary-elements methods; electromagnetic wave scattering; finite element analysis; 3D scatterers; BEM; FEA; arbitrary infinite doubly periodic arrays; boundary condition; electromagnetic scattering; hybrid finite-element/boundary element formulation; plane wave scattering; stationary functional; surface patch boundary elements; tetrahedral edge-based vector finite elements; variational electromagnetics; vector variation E-field formulation; volume cell array; Antenna arrays; Boundary conditions; Eigenvalues and eigenfunctions; Electromagnetic radiation; Electromagnetic scattering; Finite element methods; Geometry; Green´s function methods; Planar arrays; Power engineering and energy;

fLanguage

English

Publisher

ieee

Conference_Titel

Antennas and Propagation Society International Symposium, 1991. AP-S. Digest

Conference_Location

London, Ontario, Canada

Print_ISBN

0-7803-0144-7

Type

conf

DOI

10.1109/APS.1991.175065

Filename

175065