Numerical Simulation of BOR scattering and radiation using a higher order FEM

Author

Dunn, Eric A. ; Byun, Jin-Kyu ; Branch, Eric D. ; Jin, Jian-Ming

Author_Institution

Dept. of Electr. & Comput. Eng., Univ. of Illinois, Urbana, IL

Volume

54

Issue

3

fYear

2006

fDate

3/1/2006 12:00:00 AM

Firstpage

945

Lastpage

952

Abstract

Numerical simulations of body-of-revolution geometries for scattering and radiation problems are presented. The formulation consists of a finite element-boundary integral (FE-BI) method which is based on a finite element method that uses higher order nodal-based scalar basis functions for the azimuthal field component and higher order edge-based vector basis functions for the transverse field. This formulation, when combined with a symmetric FE-BI hybridization scheme, yields a final system of equations that is more accurate than earlier first-order formulations. Numerical examples are given to demonstrate the accuracy and capabilities of the higher order solution

Keywords

boundary integral equations; boundary-elements methods; conducting bodies; electromagnetic wave scattering; finite element analysis; geometry; BOR geometry; FE-BI hybridization scheme; azimuthal field component; body-of-revolution; edge-based vector basis function; electromagnetic radiation; electromagnetic scattering; finite element-boundary integral method; higher order FEM; nodal-based scalar basis function; Computational electromagnetics; Dielectric losses; Electromagnetic scattering; Finite element methods; Geometry; Integral equations; Moment methods; Numerical simulation; Radar scattering; Solid modeling; Body of revolution (BOR); electromagnetic radiation; electromagnetic scattering; finite element method (FEM); method of moments (MoM); radar cross section (RCS);

fLanguage

English

Journal_Title

Antennas and Propagation, IEEE Transactions on

Publisher

ieee

ISSN

0018-926X

Type

jour

DOI

10.1109/TAP.2006.869936

Filename

1603820