Kong Soon-Cheol, Simpson Jamesina J, Backman Vadim
Department of Electrical Engineering and Computer Science, Northwestern University, Evanston, IL 60208 USA.
IEEE Microw Wirel Compon Lett. 2008 Jan 1;18(1):4-6. doi: 10.1109/LMWC.2007.911970.
This Letter presents a scattered-field formulation for modeling dispersive media using the finite-difference time-domain (FDTD) method. Specifically, the auxiliary differential equation method is applied to Drude and Lorentz media for a scattered field FDTD model. The present technique can also be applied in a straightforward manner to Debye media. Excellent agreement is achieved between the FDTD-calculated and exact theoretical results for the reflection coefficient in half-space problems.
本文提出了一种用于使用时域有限差分（FDTD）方法对色散介质进行建模的散射场公式。具体而言，将辅助微分方程方法应用于德鲁德和洛伦兹介质，以建立散射场FDTD模型。本技术也可以直接应用于德拜介质。在半空间问题中，FDTD计算的反射系数与精确的理论结果之间取得了极好的一致性。
