The Associated Hermite FDTD Method With the Thin-Wire Modeling in Low-Frequency Cases

作者：Zian Chen, Zheng‐Yu Huang, Shaobin Liu, Qingsheng Zeng, Robalino Espinoza Viviana Lorena · 发表于：IEEE journal on multiscale and multiphysics computational techniques · 年份：2022 · DOI：10.1109/jmmct.2022.3157261 · 被引用次数：5 · 研究领域：Electromagnetic Simulation and Numerical Methods、Electromagnetic Scattering and Analysis、Microwave Engineering and Waveguides

To analyze the thin-wire model in low-frequency cases, the unconditionally stable Associated Hermite finite-difference time-domain (AH FDTD) method is proposed in this paper. The thin wire model combined with the AH domain operators is applied to update the coefficient matrix equation of the 3-D AH FDTD method to get the final solution. Two examples related with a dipole antenna and a Yagi antenna are set up to verify the proposed algorithm. Compared with the conventional FDTD method, the efficiency for the proposed method is enhanced by as high as a factor of 15 while keeping a sound accuracy in low-frequency cases.