Error in projection of plane waves using the RWG basis functions

Author

Yang, M. ; Song, J.M.

Author_Institution

Dept. of Electr. & Comput. Eng., Iowa State Univ., Ames, IA

fYear

2006

fDate

9-14 July 2006

Firstpage

2873

Lastpage

2876

Abstract

The error in projection of the induced current of a plane wave using the Rao-Wilton-Glisson (RWG) basis functions has been studied numerically. The vector current in a finite area is expanded by full and half RWG basis functions, and the unknown projection coefficients are solved by the Galerkin´s method. The error is calculated for different polarizations, different meshes and mesh densities, and different incident angles. It is found that the error in the projection of curl-free vectors is less than that of divergence-free vectors, and the RWG basis has the projection error in range of 10 to 20 percents for the mesh with 10 unknowns per wavelength

Keywords

Galerkin method; electromagnetic wave propagation; mesh generation; polarisation; Galerkin method; RWG basis functions; Rao-Wilton-Glisson basis functions; curl-free vectors; divergence-free vectors; incident angles; induced current; mesh densities; plane wave projection error; projection coefficients; vector current; Boundary conditions; Computer errors; Current; Electromagnetic radiation; Electromagnetic scattering; Error analysis; Integral equations; Magnetic fields; Moment methods; Polarization;

fLanguage

English

Publisher

ieee

Conference_Titel

Antennas and Propagation Society International Symposium 2006, IEEE

Conference_Location

Albuquerque, NM

Print_ISBN

1-4244-0123-2

Type

conf

DOI

10.1109/APS.2006.1711206

Filename

1711206