Title :
A comparison between numerical integration techniques for EFIE singular kernels
Author :
Santiago, Anderson Gabriel ; Trintinalia, Luiz Cezar
Author_Institution :
Dept. of Telecommun. & Control Eng., Escola Politec. da Univ. de Sao Paulo, Sao Paulo, Brazil
fDate :
Oct. 29 2011-Nov. 1 2011
Abstract :
This paper presents a comparison between some integration schemes for weak singular kernels for 2D and 3D boundary element problems. A self-adaptative coordinate transformation is used in order to evaluate integrals with singularities of order O[ln (r)] for 2D harmonic problems and of order O(1/r) for 3D steady state and harmonic problems and it is compared with approximated analytical results and a domain subdivision scheme.
Keywords :
boundary-elements methods; computational electromagnetics; electric field integral equations; 2D boundary element problems; 3D boundary element problems; EFIE singular kernels; domain subdivision scheme; numerical integration; self-adaptative coordinate transformation; weak singular kernels; Approximation methods; Equations; Green function; Harmonic analysis; Kernel; Steady-state; Three dimensional displays;
Conference_Titel :
Microwave & Optoelectronics Conference (IMOC), 2011 SBMO/IEEE MTT-S International
Conference_Location :
Natal
Print_ISBN :
978-1-4577-1662-1
DOI :
10.1109/IMOC.2011.6169243
