Title :
Analysis of sharp metal edge diagonal to the cell cube in FDTD grid
Author :
Lu, Feng ; Chen, Bin ; Yi, Yun ; Gao, Cheng ; Shi, Li-Hua ; Zhou, Bi-Hua
Author_Institution :
Electromagn. Lab., Nanjing Eng. Inst., China
Abstract :
The finite-difference time-domain(FDTD) update equations for sharp metal edges are extended in this paper. New FDTD update equations for sharp metal edges diagonal to cell cube in FDTD grid are presented. Unlike the literature , the edge is assumed to be not parallel to any cell face. A dramatic improvement in computed accuracy was observed when a stripline with two sharp edges diagonal to the cell cube in FDTD grid was analyzed using the new equations.
Keywords :
computational electromagnetics; electromagnetic wave propagation; finite difference time-domain analysis; microstrip lines; transmission line theory; FDTD grid; FDTD update equations; cell cube; computed accuracy; electromagnetic field; homogeneous line; microstrip; sharp metal edges; singularity-enhanced equations; wave propagation; Coordinate measuring machines; Electromagnetic fields; Electromagnetic measurements; Electromagnetic scattering; Equations; Finite difference methods; Goniometers; Microstrip; Testing; Time domain analysis;
Journal_Title :
Microwave and Wireless Components Letters, IEEE
DOI :
10.1109/LMWC.2003.815286
