Year: 2026
Type: article
Abstract: ABSTRACT To achieve efficient modeling of unidirectional fine structure and accurate analysis of far‐field characteristics, a practical scheme applying the nonuniform grid (NG) and convolution perfectly matched layer (CPML) in the hybrid implicit‐explicit (HIE) finite‐difference time‐domain (FDTD) method is investigated. The numerical stability of the proposed method is rigorously demonstrated analytically, and its effectiveness is verified by simulation analysis and experimental comparison of antenna examples. The computational efficiency is improved 16.7% compared to the HIE‐FDTD method, and memory usage is significantly reduced through targeted discretization with NG and stability maintenance via CPML.
DOI: 10.1002/mop.70527
Institution: Hangzhou Dianzi University
Language: English
Subfield: Electrical and Electronic Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: bronze
OpenAlex ID: W7129738751