Abstract
Unconditionally stable formulations of the stretched coordinates perfectly matched layer (SCPML) are presented for truncating linear dispersive finite difference time domain (FDTD) grids. In the proposed formulations, the Crank Nicolson and the Bilinear frequency approximation techniques are incorporated with the SCPML to obtain the update equations for the field components in linear dispersive media. Numerical example carried out in one dimensional Lorentz dispersive FDTD domain is included and it has been observed that the proposed formulations not only give accurate results but also remove completely the stability limit of the conventional FDTD algorithm.
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Ramadan, O. (2007). An Effective Unconditionally Stable Algorithm for Dispersive Finite Difference Time Domain Simulations. In: Gervasi, O., Gavrilova, M.L. (eds) Computational Science and Its Applications – ICCSA 2007. ICCSA 2007. Lecture Notes in Computer Science, vol 4707. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-540-74484-9_34
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DOI: https://doi.org/10.1007/978-3-540-74484-9_34
Publisher Name: Springer, Berlin, Heidelberg
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