Modified subgridding algorithm with multilevel scheme for two-dimensional finite-difference time-domain method

Author

Chang, Ching-Cheng ; Jeng, Shyn-Kang

Author_Institution

Dept. of Electr. Eng., Nat. Taiwan Univ., Taipei, Taiwan

Volume

2

fYear

2001

fDate

3-6 Dec. 2001

Firstpage

831

Abstract

Finite-difference time-domain method (FDTD) has been very popular in solving electromagnetic problems. However, for those that contain small structures or strongly varying fields, very fine meshes have to be used. Since a finer mesh means longer computing time and larger memory, subgridding would be one of the ways to improve the performance of the FDTD method. To expand the power of subgridding, we develop a multilevel subgridding scheme. This new scheme can provide smoother transitions than the conventional one-level subgridding scheme, and achieve better performance.

Keywords

electromagnetic fields; finite difference time-domain analysis; interpolation; computing time; electromagnetic problems; multilevel scheme; small structures; strongly varying fields; subgridding algorithm; two-dimensional finite-difference time-domain method; Boundary conditions; Finite difference methods; Grid computing; Interpolation; Partial differential equations; Space exploration; Tellurium; Testing; Time domain analysis; Tree data structures;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Conference, 2001. APMC 2001. 2001 Asia-Pacific

Conference_Location

Taipei, Taiwan

Print_ISBN

0-7803-7138-0

Type

conf

DOI

10.1109/APMC.2001.985498

Filename

985498