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FDTD Modeling of Lorentzian DNG Metamaterials by Auxiliary Differential Equation Method

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DOI: 10.4236/jemaa.2014.65010    4,081 Downloads   5,645 Views   Citations

ABSTRACT

In this paper, Finite Difference Time Domain (FDTD) is utilized to simulate metamaterials of Double Negative (DNG) origin that refers to those materials having simultaneous negative permittivity and permeability. The problem regarding space formulation is achieved by means of auxiliary differential equation method (ADE), which is easy, reliable and also causal process in nature thus making it proficient. It uses fair approximations to explicate the model. Mur’s boundary condition is used for 1-D problem space and convolution perfectly matched layer boundary is implemented for 2-D problem space. The properties of metamaterial conform their speculations of energy absorption, enhancement and backward propagation property with the aid of graphs engineered by Matlab simulation both in 1-D and 2-D. Also, the interaction of fields on DNG and Double Positive (DPS) layers is contrasted. The results achieved elucidate the validity and effectiveness of the ADE method and the Convolution Perfectly Match Layer (CPML) in designing DNG metamaterials.

Conflicts of Interest

The authors declare no conflicts of interest.

Cite this paper

Goswami, C. , Mukherjee, S. , Karmakar, S. , Pal, M. and Ghatak, R. (2014) FDTD Modeling of Lorentzian DNG Metamaterials by Auxiliary Differential Equation Method. Journal of Electromagnetic Analysis and Applications, 6, 106-114. doi: 10.4236/jemaa.2014.65010.

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