Title :
FDTD accuracy improvement by incorporation of 3D edge singularities
Author :
Huynh, N.-H. ; Heinrich, W.
Author_Institution :
Ferdinand-Braun Inst. fur Hochstfrequenztech., Berlin, Germany
Abstract :
The finite-difference approximation resolves the electromagnetic field near singularities at metallic edges with only poor accuracy. However, if the singular field behavior is known, it can be incorporated into the formulation. We present a method to describe 2D and 3D edge singularities, which significantly improves accuracy without increasing numerical efforts.
Keywords :
coplanar transmission lines; electromagnetic field theory; finite difference time-domain analysis; microwave circuits; transmission line theory; 2D edge singularities; 3D edge singularities; FDTD accuracy improvement; accuracy; electromagnetic field; finite-difference approximation; metallic edges; singular field behavior; Electromagnetic fields; Finite difference methods; Finite element methods; Integral equations; Magnetic fields; Magnetic materials; Maxwell equations; Microwave circuits; Time domain analysis; Transmission lines;
Conference_Titel :
Microwave Symposium Digest, 1999 IEEE MTT-S International
Conference_Location :
Anaheim, CA, USA
Print_ISBN :
0-7803-5135-5
DOI :
10.1109/MWSYM.1999.780257
