Application of the Leapfrog ADI FDTD Method to Periodic Structures

被引：12
|
作者：
Mao, Yun-Fei [1 ,2 ]
Chen, Bin [1 ]
Xia, Jing-Long [2 ]
Chen, Jian [2 ]
Tang, Zhen [2 ]
机构：
[1] PLA Univ Sci & Technol, Natl Key Lab Electromagnet Environm & Electroopt, Nanjing 210007, Jiangsu, Peoples R China
[2] China Satellite Maritime Tracking & Control Dept, Jiangyin 214400, Peoples R China
来源：
IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS | 2013年 / 12卷
基金：
美国国家科学基金会;
关键词：
Alternating direction implicit (ADI); finite-difference time-domain (FDTD) method; leapfrog; one-step; DISPERSION;
D O I：
10.1109/LAWP.2013.2260520
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：
In this letter, the one-step leapfrog alternating direction implicit (ADI) finite-difference time-domain (FDTD) method has been introduced to solve periodic structures, resulting in a one-step leapfrog periodic ADI-FDTD method. In comparison to the original ADI-FDTD method, the one-step leapfrog ADI-FDTD method retains almost the same numerical modeling accuracy, but with higher computational efficiency. To simplify the issue, a reformation of the periodic one-step leapfrog ADI-FDTD method is also presented. Numerical results are given to demonstrate the proposed formulation. It is found that the periodic one-step leapfrog ADI-FDTD method requires less memory and CPU time than the conventional periodic ADI-FDTD method. To reduce the numerical dispersion error, an optimization procedure is applied.
引用
收藏
页码：599 / 602
页数：4
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