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http://dx.doi.org/10.6109/jkiice.2008.12.7.1165

Frequency Domain Characteristics of the Metamaterial Slab Using 2D-FDTD  

Hong, Ic-Pyo (공주대학교 정보통신공학부)
Publication Information
Journal of the Korea Institute of Information and Communication Engineering / v.12, no.7, 2008 , pp. 1165-1172 More about this Journal
Abstract
In this paper, the scattering parameters of the metamaterial slab are obtained using the 2D FDTD(Finite-Difference Time-Domain) method. FDTD method is one of strongest electromagnetic numerical method which is widely used to analyze the metamaterial structure because of its simplicity. But it is very difficult to obtain frequency response of metamaterial itself because frequency dispersive model such as Lorentz, Drude model are used in FDTD. We used the well-known m-n-m cycle sine pulse to obtain the frequency response of the metamaterials. Comparisons between the wideband Gaussian input pulse and band-limited m-n-m cycle sine pulse are performed in this paper also. From the results, we concluded that the scattering parameters in frequency domain can be obtained using specific input pulse in FDTD even if the response has valid only for limited bandwidth.
Keywords
시간영역 유한차분법;메타물질;주파수 영역;
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