Title :
A new higher-order subgridding method for finite difference time domain (FDTD) algorithm
Author :
Wenhua Yu ; Raj Mittra
Author_Institution :
Electromagn. Commun. Res. Lab., Pennsylvania State Univ., University Park, PA, USA
Abstract :
In this paper the authors present a general subgridding scheme for enhancing the finite difference time domain (FDTD) algorithm. It is different from the conventional approaches in that it does not employ weighted averages of the electric or magnetic fields in the transition zone from the coarse to the fine grid regions, but employs a novel procedure instead for transferring the information between these two regions. We illustrate the application of the subgridding algorithm by considering refinement factor of 5, and provide validation of the results obtained for this case.
Keywords :
electromagnetic field theory; electromagnetic wave scattering; finite difference time-domain analysis; FDTD algorithm; coarse grid region; electric fields; fine grid region; finite difference time domain; higher-order subgridding method; magnetic fields; Extrapolation; Finite difference methods; Grid computing; Interpolation; Magnetic fields; Reflection; Stability; Time domain analysis;
Conference_Titel :
Antennas and Propagation Society International Symposium, 1998. IEEE
Conference_Location :
Atlanta, GA, USA
Print_ISBN :
0-7803-4478-2
DOI :
10.1109/APS.1998.699213