Title :
A Huygens Subgridding for the FDTD Method
Author :
Jean-Pierre Berenger
Author_Institution :
Centre d´Analyse de Defense, Arcueil
Abstract :
A new subgridding technique is presented for the finite-difference time-domain (FDTD) method. The connection between the grid and the subgrid is realized by means of equivalent currents. The ratio of the steps of the grids can be arbitrarily large, and no significant reflection is produced from the grids interface. The principle of the method is presented in the continuous three dimensional space. The FDTD algorithm is described in detail in the one dimensional case
Keywords :
computational electromagnetics; electromagnetic wave scattering; finite difference time-domain analysis; FDTD method; Huygens subgridding technique; continuous three dimensional space; equivalent currents; finite-difference time-domain; grids interface; Boundary conditions; Filtering; Finite difference methods; Frequency; Grid computing; Helium; Maxwell equations; Reflection; Time domain analysis; Two dimensional displays; Domain decomposition; Huygens surface; equivalent current; finite-difference time-domain (FDTD); numerical method; subgrid;
Journal_Title :
Antennas and Propagation, IEEE Transactions on
DOI :
10.1109/TAP.2006.886519
