The idea of separating the spatial and temporal subgridding interfaces is introduced in this paper. Based on this idea, the spatial and temporal subgridding algorithms can be developed and analyzed separately. The spatial algorithm was given in the previous paper. In this paper, the temporal subgridding algorithm is described and the stability is illustrated by the analytical formulation of a one-dimensional model. An FDTD code that combines the spatial and temporal subgridding algorithms is implemented. Numerical test models are calculated to show the stability and accuracy of the proposed method.

Meeting Name

IEEE International Symposium on Electromagnetic Compatibility (2005: Aug. 8-12, Chicago, IL)


Electrical and Computer Engineering

Research Center/Lab(s)

Electromagnetic Compatibility (EMC) Laboratory

Keywords and Phrases

Algorithms; Computational Methods; Finite Difference Method; Mathematical Models; Numerical Analysis; Stability; Time Domain Analysis; Finite Difference Time Domain (FDTD); Subgridding; Subgridding Algorithm; Interfaces (Computer); FDTD; Finite Difference Methods; Algorithm Design And Analysis; Interpolation; Testing; Maxwell Equations; Error Correction; Electromagnetic Compatibility; Stability Analysis; Numerical Models; Transmission Line Theory; Finite Difference Time-Domain Analysis; Spatial Subgridding interfaces; Three-Dimensional FDTD Subgridding Method; Temporal Subgridding Interfaces

International Standard Book Number (ISBN)


International Standard Serial Number (ISSN)

2158-110X; 2158-1118

Document Type

Article - Conference proceedings

Document Version

Final Version

File Type





© 2005 Institute of Electrical and Electronics Engineers (IEEE), All rights reserved.

Publication Date

01 Aug 2005