TY - JOUR
T1 - Unconditionally Stable Higher Order CNAD-PML for Left-Handed Materials
AU - Li, Jianxiong
AU - Wu, Peiyu
N1 - Publisher Copyright:
© 1963-2012 IEEE.
PY - 2019/11
Y1 - 2019/11
N2 - An unconditionally stable and efficient higher order complex frequency-shifted perfectly matched layer (CFS-PML) based on the Crank-Nicolson-approximate-decoupling (CNAD) algorithm is proposed for truncating the finite-difference time-domain (FDTD) computational domain filled with the left-handed materials (LHMs). The proposed higher order CFS-PML is implemented by the bilinear transform (BT) approach and the LHMs are solved by the trapezoidal recursive convolution (TRC) method. A numerical example is provided to validate the effectiveness of the proposed implementation. The results show that the proposed CFS-PML not only has better absorbing performance compared with the first-order CNAD CFS-PML and the alternating-direction-implicit (ADI) CFS-PML but also takes advantage of the unconditional stability of the original Crank-Nicolson algorithm.
AB - An unconditionally stable and efficient higher order complex frequency-shifted perfectly matched layer (CFS-PML) based on the Crank-Nicolson-approximate-decoupling (CNAD) algorithm is proposed for truncating the finite-difference time-domain (FDTD) computational domain filled with the left-handed materials (LHMs). The proposed higher order CFS-PML is implemented by the bilinear transform (BT) approach and the LHMs are solved by the trapezoidal recursive convolution (TRC) method. A numerical example is provided to validate the effectiveness of the proposed implementation. The results show that the proposed CFS-PML not only has better absorbing performance compared with the first-order CNAD CFS-PML and the alternating-direction-implicit (ADI) CFS-PML but also takes advantage of the unconditional stability of the original Crank-Nicolson algorithm.
KW - Bilinear transform (BT)
KW - Crank-Nicolson-approximate-decoupling (CNAD)
KW - finite-difference time-domain (FDTD)
KW - left-handed materials (LHMs)
KW - perfectly matched layer (PML)
KW - trapezoidal recursive convolution (TRC)
UR - https://www.scopus.com/pages/publications/85069932633
U2 - 10.1109/TAP.2019.2927761
DO - 10.1109/TAP.2019.2927761
M3 - 文章
AN - SCOPUS:85069932633
SN - 0018-926X
VL - 67
SP - 7156
EP - 7161
JO - IEEE Transactions on Antennas and Propagation
JF - IEEE Transactions on Antennas and Propagation
IS - 11
M1 - 8764575
ER -