电波科学学报2012，Vol.27Issue(5)：853-858,6.
快速时域有限差分方法计算矩形缺陷接地结构
Calculation of transmission parameters for a rectangle defected ground structure using fast FDTD scheme
摘要
Abstract
It is time-consuming to calculate the transmission parameters of the rectangle defected ground structure (RDGS)using the conventional finite difference time domain method (FDTD) due to the Courant-Friedrich-Levy (CFL) limitation. The Crank-Nicolson FDTD(CN-FDTD),which is an unconditionally stable scheme, is adopted in this paper for improving the efficiency of the computation. The efficiency and the precision are analyzed in detail with the different time steps. The numerical results show that the CN-FDTD scheme is stable and efficient, even if the time step is far beyond the CFL limit. The results with the CN-FDTD show good agreement with the ones using the conventional FDTD,and the efficiency of the CN- FDTD scheme improves by 77.2%. In addition,the results using CN-FDTD is much more accurate than the ones with ADI-FDTD if the same time step is utilized.关键词
时域有限差分/矩形缺陷接地结构/传输系数/Crank—Nicolson格式时域有限差分/时间步长Key words
finite difference time domain method (FDTD)/rectangle defected ground structure (RDGS)/transmission parameters (S21)/Crank-Nieolson FDTD (CN-FDTD)/the time step分类
信息技术与安全科学引用本文复制引用
金涛斌,邹军..快速时域有限差分方法计算矩形缺陷接地结构[J].电波科学学报,2012,27(5):853-858,6.基金项目
基金项目：国家自然科学基金资助项目 （）
