Title :
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
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;
Conference_Titel :
Antennas and Propagation Society International Symposium 2006, IEEE
Conference_Location :
Albuquerque, NM
Print_ISBN :
1-4244-0123-2
DOI :
10.1109/APS.2006.1711206
