One-Step Leapfrog LOD-BOR-FDTD Algorithm with CPML Implementation

Autor: Yi-Gang Wang, Yun Yi, Bin Chen, Hai-Lin Chen, Kang Luo, Run Xiong
Jazyk: angličtina
Rok vydání: 2016
Předmět:
Zdroj: International Journal of Antennas and Propagation, Vol 2016 (2016)
Druh dokumentu: article
ISSN: 1687-5869
1687-5877
95028994
DOI: 10.1155/2016/8402697
Popis: An unconditionally stable one-step leapfrog locally one-dimensional finite-difference time-domain (LOD-FDTD) algorithm towards body of revolution (BOR) is presented. The equations of the proposed algorithm are obtained by the algebraic manipulation of those used in the conventional LOD-BOR-FDTD algorithm. The equations for z-direction electric and magnetic fields in the proposed algorithm should be treated specially. The new algorithm obtains a higher computational efficiency while preserving the properties of the conventional LOD-BOR-FDTD algorithm. Moreover, the convolutional perfectly matched layer (CPML) is introduced into the one-step leapfrog LOD-BOR-FDTD algorithm. The equation of the one-step leapfrog CPML is concise. Numerical results show that its reflection error is small. It can be concluded that the similar CPML scheme can also be easily applied to the one-step leapfrog LOD-FDTD algorithm in the Cartesian coordinate system.
Databáze: Directory of Open Access Journals
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