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2021-01-27
A Novel and Efficient Implementation of Higher Order CPML for Truncating the Unmagnetized Plasma
By
Progress In Electromagnetics Research Letters, Vol. 96, 47-52, 2021
Abstract
A novel and efficient higher order convolutional perfectly matched layer (CPML) method is put forward and also applied to cut off the finite-difference time-domain (FDTD) computational domain full of the unmagnetized plasma. A Drude model can be used to represent the unmagnetized plasma, and the plasma can be solved by using the trapezoidal recursive convolution (TRC) method. In order to verify the validity of the presented method, a numerical example in three-dimensional computational domain is provided. The numerical example results show that the proposed formulations have better absorbing performance than the first-order CPML in terms of attenuating low-frequency and evanescent waves. Besides, by using the proposed method, computational time and memory can be reduced compared to the second order PML implemented by using the auxiliary differential equation (ADE) method.
Citation
Jianxiong Li Zhi Li Xiaoming Zhao , "A Novel and Efficient Implementation of Higher Order CPML for Truncating the Unmagnetized Plasma," Progress In Electromagnetics Research Letters, Vol. 96, 47-52, 2021.
doi:10.2528/PIERL20122204
http://www.jpier.org/PIERL/pier.php?paper=20122204
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