Title :
An improved method in FDTD simulation to reduce reflection from non-uniform mesh
Author :
Wu, E.N. ; Benqing, Gao ; Shiming, Yang
Author_Institution :
Beijing Inst. of Technol., China
Abstract :
In this paper, an improved method in finite-difference time-domain (FDTD) simulation is presented to analyze electromagnetic structures modeling with non-uniform mesh in a Cartesian coordinate system. This new method is based on Yee´s grid definition and FDTD formulas in generalized nonorthogonal coordinates. Two kinds of non-uniform meshes are analyzed by improved method and traditional FDTD, the comparative result proves it is more available in reducing the reflecting wave caused by non-uniform mesh.
Keywords :
electromagnetic wave reflection; finite difference time-domain analysis; mesh generation; Cartesian coordinate system; FDTD simulation; Yee grid; electromagnetic structure; generalized nonorthogonal coordinates; nonuniform mesh; numerical method; wave reflection; Analytical models; Artificial intelligence; Computational modeling; Electromagnetic analysis; Electromagnetic modeling; Electromagnetic reflection; Equations; Finite difference methods; Frequency; Time domain analysis;
Conference_Titel :
Microwave and Millimeter Wave Technology, 2002. Proceedings. ICMMT 2002. 2002 3rd International Conference on
Print_ISBN :
0-7803-7486-X
DOI :
10.1109/ICMMT.2002.1187783
