A Stable FDTD Subgridding Method for Thin PEC Sheet Structure Modeling

Langran Deng; Yuhui Wang; Hanhong Liu; Weibo Wu; Xinyue Zhang; Xingqi Zhang; Jian Wang; Youguang Zhang; Zhizhang Chen; Shunchuan Yang

doi:10.1109/LMWT.2025.3593359

A Stable FDTD Subgridding Method for Thin PEC Sheet Structure Modeling

Langran Deng
, Yuhui Wang
, Hanhong Liu
, Weibo Wu
, Xinyue Zhang
, Xingqi Zhang
, Jian Wang
, Youguang Zhang
, Zhizhang Chen
, Shunchuan Yang^*

^*此作品的通讯作者

电子信息工程学院

Beihang University
University College Dublin
University of Alberta
Ningbo University
Dalhousie University

科研成果: 期刊稿件 › 文章 › 同行评审

1 引用（Scopus）

摘要

A finite-difference time-domain (FDTD) subgridding method is developed to efficiently and accurately model thin perfect electric conductor (PEC) sheets. By analyzing two integral loops split by thin sheet structures on the surface of a Yee’s cell, coupling operators at the interface of coarse and subgridding meshes are carefully designed to preserve field continuity and ensure numerical stability. A numerical example is performed to validate the proposed method in terms of stability, accuracy, and efficiency.

源语言	英语
页（从-至）	1676-1679
页数	4
期刊	IEEE Microwave and Wireless Technology Letters
卷	35
期	11
DOI	https://doi.org/10.1109/LMWT.2025.3593359
出版状态	已出版 - 11月 2025

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10.1109/LMWT.2025.3593359

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@article{b8845974d4cf450f99577cc097c3a781,

title = "A Stable FDTD Subgridding Method for Thin PEC Sheet Structure Modeling",

abstract = "A finite-difference time-domain (FDTD) subgridding method is developed to efficiently and accurately model thin perfect electric conductor (PEC) sheets. By analyzing two integral loops split by thin sheet structures on the surface of a Yee{\textquoteright}s cell, coupling operators at the interface of coarse and subgridding meshes are carefully designed to preserve field continuity and ensure numerical stability. A numerical example is performed to validate the proposed method in terms of stability, accuracy, and efficiency.",

keywords = "Finite-difference time-domain (FDTD), stable, subgridding, thin sheet",

author = "Langran Deng and Yuhui Wang and Hanhong Liu and Weibo Wu and Xinyue Zhang and Xingqi Zhang and Jian Wang and Youguang Zhang and Zhizhang Chen and Shunchuan Yang",

note = "Publisher Copyright: {\textcopyright} 2023 IEEE.",

year = "2025",

month = nov,

doi = "10.1109/LMWT.2025.3593359",

language = "英语",

volume = "35",

pages = "1676--1679",

journal = "IEEE Microwave and Wireless Technology Letters",

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publisher = "Institute of Electrical and Electronics Engineers Inc.",

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TY - JOUR

T1 - A Stable FDTD Subgridding Method for Thin PEC Sheet Structure Modeling

AU - Deng, Langran

AU - Wang, Yuhui

AU - Liu, Hanhong

AU - Wu, Weibo

AU - Zhang, Xinyue

AU - Zhang, Xingqi

AU - Wang, Jian

AU - Zhang, Youguang

AU - Chen, Zhizhang

AU - Yang, Shunchuan

PY - 2025/11

Y1 - 2025/11

N2 - A finite-difference time-domain (FDTD) subgridding method is developed to efficiently and accurately model thin perfect electric conductor (PEC) sheets. By analyzing two integral loops split by thin sheet structures on the surface of a Yee’s cell, coupling operators at the interface of coarse and subgridding meshes are carefully designed to preserve field continuity and ensure numerical stability. A numerical example is performed to validate the proposed method in terms of stability, accuracy, and efficiency.

AB - A finite-difference time-domain (FDTD) subgridding method is developed to efficiently and accurately model thin perfect electric conductor (PEC) sheets. By analyzing two integral loops split by thin sheet structures on the surface of a Yee’s cell, coupling operators at the interface of coarse and subgridding meshes are carefully designed to preserve field continuity and ensure numerical stability. A numerical example is performed to validate the proposed method in terms of stability, accuracy, and efficiency.

KW - Finite-difference time-domain (FDTD)

KW - stable

KW - subgridding

KW - thin sheet

UR - https://www.scopus.com/pages/publications/105013062194

U2 - 10.1109/LMWT.2025.3593359

DO - 10.1109/LMWT.2025.3593359

M3 - 文章

AN - SCOPUS:105013062194

SN - 2771-957X

VL - 35

SP - 1676

EP - 1679

JO - IEEE Microwave and Wireless Technology Letters

JF - IEEE Microwave and Wireless Technology Letters

IS - 11

ER -

A Stable FDTD Subgridding Method for Thin PEC Sheet Structure Modeling

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