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A Convolutional Perfect Matched Layer (CPML) for One-Step Leapfrog ADI-FDTD Method and Its Applications to EMC Problems.
- Source :
- IEEE Transactions on Electromagnetic Compatibility; Nov2012, Vol. 54 Issue 5, p1066-1076, 11p
- Publication Year :
- 2012
-
Abstract
- A new convolutional perfectly matched layer (CPML) is proposed and implemented in one-step leapfrog alternately direction-implicit finite-difference time-domain (ADI-FDTD) method. Different from the previous developed perfectly matched layers (PMLs) used in the ADI-FDTD methods, the proposed PML has the same form as that used for the conventional FDTD method, requiring only one-step computations of the CPML auxiliary quantities. Stability of the proposed CPML is verified semianalytically and its high absorption efficiency is proven numerically. The proposed CPML is then applied to a number of applications; they include radiation generated by a current source in free space, propagating and evanescent modes in a rectangular waveguide, and transient current prediction on an aircraft that is modeled with a numerical grid of 402 × 48 × 262. Accurate results have been obtained in comparison with the results obtained with the other methods. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 00189375
- Volume :
- 54
- Issue :
- 5
- Database :
- Complementary Index
- Journal :
- IEEE Transactions on Electromagnetic Compatibility
- Publication Type :
- Academic Journal
- Accession number :
- 82710423
- Full Text :
- https://doi.org/10.1109/TEMC.2012.2198067