An Algorithm of 3-D ADI-R-FDTD Based on Non-Zero Divergence Relationship

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In this letter, an alternating-direction reduced finite-difference time-domain (ADI-R-FDTD) method is presents. It is proven that the divergence relationship of electric-field and magnetic-field is non-zero even in charge-free regions, when the electric-field and magnetic-field are calculated with alternating-direction finite-difference time-domain (ADI-FDTD) method in 3 dimensions case, and the expression of the divergence relationship is derived. Based on the non-zero divergence relationship, the ADI-FDTD method is combined with the reduced finite-difference time-domain (R-FDTD) method. In the proposed method, the memory requirement of ADI-R-FDTD is reduced by1/12 of the memory requirement of ADI-FDTD averagely in 3D case. The formulation is presented and the accuracy and efficiency of the proposed method is verified by comparing the results with the conventional results.

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Periodical:

Advanced Materials Research (Volumes 317-319)

Edited by:

Xin Chen

Pages:

1172-1176

Citation:

X. H. Jin et al., "An Algorithm of 3-D ADI-R-FDTD Based on Non-Zero Divergence Relationship", Advanced Materials Research, Vols. 317-319, pp. 1172-1176, 2011

Online since:

August 2011

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$41.00

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