Title :
FDTD modelling of Lorentzian DNG meta-materials with the z-transform
Author :
Suwailam, Mohammed M Bait ; Chen, Zhizhang David
Author_Institution :
Dept. of Electr. & Comput. Eng., Dalhousie Univ., Halifax, NS, Canada
Abstract :
The FDTD method is applied to simulate meta-materials of double negative (DNG) permittivity and permeability. The z-transform is used to incorporate the meta-material constitutive relationship in the FDTD algorithms. Causality of the wave propagation as well as energy enhancement in the DNG medium are then numerically demonstrated, and agree with the theory. The results show that the FDTD method with the z-transform incorporated is well suited for modeling DNG materials.
Keywords :
Z transforms; causality; electromagnetic wave propagation; finite difference time-domain analysis; magnetic permeability; metamaterials; permittivity; FDTD modelling; Lorentzian DNG metamaterials; causality; double negative materials; negative permeability; negative permittivity; wave propagation; z-transform; Computational modeling; Differential equations; Finite difference methods; Frequency locked loops; Laboratories; Magnetic materials; Metamaterials; Permeability; Permittivity; Time domain analysis;
Conference_Titel :
Computational Electromagnetics and Its Applications, 2004. Proceedings. ICCEA 2004. 2004 3rd International Conference on
Print_ISBN :
0-7803-8562-4
DOI :
10.1109/ICCEA.2004.1459284
