One-step Unconditionally Stable FDTD Method and Its Numerical Dispersion Analysis
The proposed two-dimensional one-step Unconditionally Stable finite-different time-domain algorithm(One-step US-FDTD) is an implicit numerical scheme with second-order accuracyInboth time and space. The method is performed using only one procedure,but not two sub-updating procedures.We analytically and numerically verified the algorithm is also unconditionally stable and free of the constraint of the Courant stability condition. The dispersion relation is derived and the dispersion error as algorithms time step size and wave propagation angle are investigated. It shows despite the proposed method dispersion error slightly larger than the conventional FDTD,but it is quite simple updating procedure maintaining the same accuracy to the conventional ADI-FDTD.
Song Liu Ping Wu Shengming Gu Shaobin Liu
College of Information Science and Technology,Nanjing University of Aeronautics and Astronautics,Nan School of Sciences,Nanchang University,Nanchang Jiangxi,330031,China College of Information Science and Technology,Nanjing University of Aeronautics and Astronautics,Nan
国际会议
2008 International Conference on Microwave and Millimeter Wave Technology(2008国际微波毫米波技术会议)
南京
英文
700-703
2008-04-21（万方平台首次上网日期，不代表论文的发表时间）