Title :
A low-dispersion 3-D second-order in time fourth-order in space FDTD scheme (M3d24)
Author :
El-Raouf, Hany E Abd ; El-Diwani, Esam A. ; Ammar, Abd El-Hadi ; El-Hefnawi, Fatma M.
Author_Institution :
Dept. of Microwave Eng., Electron. Res. Inst., Cairo, Egypt
fDate :
7/1/2004 12:00:00 AM
Abstract :
A second-order in time fourth-order in space modified finite-difference time-domain (FDTD) scheme for three dimensional electromagnetic problems "M3d24" is presented. The algorithm enables the numerical phase error to be minimized, so that it leads to high accuracy with low resolution grids. The advantage of this method is demonstrated by considering the long distance propagation of the wave radiated from a time harmonic elementary dipole using a low resolution grid, and comparing the results with other FDTD schemes.
Keywords :
electromagnetic wave propagation; finite difference time-domain analysis; 3Delectromagnetic problems; electromagnetic wave radiation; finite-difference time-domain; grid resolution; long distance propagation; numerical phase error; space FDTD scheme; time harmonic elementary dipole; Algorithm design and analysis; Electromagnetic propagation; Electromagnetic radiation; Error correction; Finite difference methods; Frequency; Helium; Maxwell equations; Taylor series; Time domain analysis; FDTD; Finite-difference time-domain; grid resolution; higher order FDTD; methods;
Journal_Title :
Antennas and Propagation, IEEE Transactions on
DOI :
10.1109/TAP.2004.831286
