Accelerated FDFD Method Based on GRHSS for Electromagnetic Analysis of Dispersive Media

IF 4.8 2区计算机科学 Q2 ENGINEERING, ELECTRICAL & ELECTRONIC

IEEE Antennas and Wireless Propagation Letters Pub Date : 2025-07-04 DOI:10.1109/LAWP.2025.3585856

Bin Zou;Zihao Ma;Lamei Zhang

引用次数: 0

Abstract

In this letter, a finite-difference frequency-domain (FDFD) scheme with a stable iterative solver is proposed to solve the electromagnetic field from objects made of dispersive media. The ill-conditioned complex matrix generated by FDFD is transformed into an equivalent 2 × 2 real form, and the Hermitian and skew-Hermitian splitting method is extended to handle the asymmetric linear system. The accuracy and stability of the proposed method are demonstrated through comparison to other frequency-domain numerical methods.

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基于GRHSS的色散介质电磁分析加速FDFD方法

本文提出了一种具有稳定迭代求解器的有限差分频域（FDFD）格式来求解由色散介质构成的物体的电磁场。将FDFD生成的病态复矩阵转化为等价的2 × 2实数形式，并将厄米和斜厄米分裂方法推广到处理非对称线性系统。通过与其他频域数值方法的比较，验证了该方法的准确性和稳定性。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

IEEE Antennas and Wireless Propagation Letters 工程技术-电信学

CiteScore

8.00

自引率

9.50%

发文量

529

审稿时长

1.0 months

期刊介绍： IEEE Antennas and Wireless Propagation Letters (AWP Letters) is devoted to the rapid electronic publication of short manuscripts in the technical areas of Antennas and Wireless Propagation. These are areas of competence for the IEEE Antennas and Propagation Society (AP-S). AWPL aims to be one of the "fastest" journals among IEEE publications. This means that for papers that are eventually accepted, it is intended that an author may expect his or her paper to appear in IEEE Xplore, on average, around two months after submission.