Title :
3-D nonorthogonal ADI-FDTD algorithm for the full-wave analysis of microstrip structure
Author :
Zheng, Hong-Xing
Author_Institution :
Dept. of Electron. Eng., Tianjin Univ. of Technol. & Educ.
Abstract :
In this paper, a generalized scheme for nonorthogonal grids is introduced to the ADI-FDTD method. To reduce the complexity, the localized nonorthogonal grids are applied to anomalistic regions only, and standard FDTD grids are used for other computational regions. The conversion from the nonorthogonal grid to the Cartesian grid is done by using the Jacobi transform. It should be mentioned that in the new scheme, the second-order Mur´s absorbing boundary condition (ABC) can be used with the standard FDTD, which greatly simplifies the problem
Keywords :
electromagnetic wave propagation; finite difference time-domain analysis; 3D nonorthogonal ADI-FDTD algorithm; Cartesian grid; Jacobi transform; anomalistic regions; computational regions; full-wave analysis; localized nonorthogonal grids; microstrip structure; second-order Mur absorbing boundary condition; standard FDTD grids; Algorithm design and analysis; Boundary conditions; Conductivity; Educational technology; Finite difference methods; Grid computing; Jacobian matrices; Maxwell equations; Microstrip; Time domain analysis;
Conference_Titel :
Antennas and Propagation Society International Symposium 2006, IEEE
Conference_Location :
Albuquerque, NM
Print_ISBN :
1-4244-0123-2
DOI :
10.1109/APS.2006.1710857
