Efficient Implementation of the Divergence-Preserved ADI-FDTD Method

被引：5

作者：

Yang, Shunchuan ^{[1
]}

Chen, Zhizhang David ^{[1
]}

Yu, Yiqiang John ^{[1
,2
]}

Ponomarenkno, Sergey ^{[1
]}

机构：

[1] Dalhousie Univ, Dept Elect & Comp Engn, Halifax, NS B3H 4R2, Canada

[2] E China Jiaotong Univ, Nanchang 330013, Peoples R China

来源：

IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS | 2012年 / 11卷

关键词：

Alternating-direction-implicit finite-difference time-domain (ADI-FDTD) method; computational efficiency; divergence-free; divergence preservation; floating-point operation; unconditionally stability;

D O I：

10.1109/LAWP.2012.2236636

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Unlike its conventional version, an unconditionally stable alternating-direction-implicit (ADI) finite-difference time-domain (FDTD) method was recently proposed that retains the correct divergence property but with higher computation expenditure. In this letter, a newly formulated divergence-preserved ADI-FDTD method is proposed. It takes about 41.7% less count of floating-point operations than the original divergence-preserved ADI-FDTD method without scarifying accuracy. Detailed analysis and numerical examples are presented to verify the improvement of computational efficiency.

引用

页码：1560 / 1563

页数：4