3D hybrid ADI-FDTD/FDTD subgridding scheme applied to RF/microwave and optical structures [waveguide/cavity examples]

Author

Chen, Zhizhang ; Ahmed, IAikhar

Author_Institution

Dept. of Electr. & Comput. Eng., Dalhousie Univ., Halifax, NS, Canada

Volume

2

fYear

2004

fDate

20-25 June 2004

Firstpage

1684

Abstract

In this paper, a 3D hybrid FDTD and ADI-FDTD technique is proposed. In it, the ADI-FDTD is applied to the fine mesh and FDTD to the coarse mesh. A subgridding interface is then developed and the associated interpolation is applied in the space domain only. This technique is efficient for applications in which there is need of fine subgrids. It leads to savings in memory and computation time. Examples are shown for validation purposes.

Keywords

cavity resonators; computational electromagnetics; finite difference time-domain analysis; interpolation; mesh generation; waveguides; 3D hybrid ADI-FDTD; CPML; FDTD subgridding scheme; RF structures; coarse mesh; fine mesh; finite-difference time-domain method; microwave structures; optical structures; space domain interpolation; subgridding interface; Equations; Finite difference methods; Interpolation; Iris; Microwave theory and techniques; Optical waveguides; Perfectly matched layers; Radio frequency; Time domain analysis; Waveguide discontinuities;

fLanguage

English

Publisher

ieee

Conference_Titel

Antennas and Propagation Society International Symposium, 2004. IEEE

Print_ISBN

0-7803-8302-8

Type

conf

DOI

10.1109/APS.2004.1330519

Filename

1330519