A Novel Unconditionally 2-D ID-WLP-FDTD Method With Low Numerical Dispersion

被引：10
作者：
Chen, Wei-Jun [1 ]
Tian, Ying [2 ]
Quan, Jun [2 ]
机构：
[1] Lingnan Normal Univ, Sch Informat Engn, Zhanjiang 524048, Peoples R China
[2] Lingnan Normal Univ, Sch Phys Sci & Technol, Zhanjiang 524048, Peoples R China
来源：
IEEE MICROWAVE AND WIRELESS COMPONENTS LETTERS | 2020年 / 30卷 / 01期
关键词：
Finite-difference time-domain (FDTD); isotropic dispersion (ID); numerical dispersion analysis; weighted Laguerre polynomials (WLPs); WAVE-PROPAGATION; LAGUERRE; SCHEME;
D O I：
10.1109/LMWC.2019.2954040
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：
A novel unconditionally stable finite-difference time-domain (FDTD) electromagnetic simulation method based on the weighted Laguerre polynomials (WLPs) and isotropic dispersion (ID) finite difference scheme is proposed, which introduces WLPs in the time domain and ID finite difference scheme in the space domain. Based on the analysis of monochrome waves, its numerical dispersion relation is obtained. In order to verify the superiority of this method, an example of plane wave propagation in a 2-D dielectric-loaded cavity is given. Compared with the conventional WLP-FDTD method, this method not only keeps good simulation accuracy but also requires less computing time and memory.
引用
收藏
页码：1 / 3
页数：3
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