A Novel Compact Conformal 2-D FDFD Method for Modeling Waveports in 3-D FDTD

被引：0

作者：

Wang, Kunyi ^{[1
,2
]}

Zuo, Sheng ^{[1
,2
]}

Wu, Qingkai ^{[1
,2
]}

Lin, Zhongchao ^{[1
,2
]}

Zhang, Yu ^{[1
,2
]}

Zhao, Xunwang ^{[1
,2
]}

机构：

[1] Xidian Univ, Shaanxi Key Lab Large Scale Electromagnet Comp, Xian 710071, Peoples R China

[2] Xidian Univ, Shaanxi Innovat Ctr High Performance CAE Software, Xian 710071, Peoples R China

来源：

IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS | 2024年 / 23卷 / 07期

关键词：

Finite difference methods; Time-domain analysis; Eigenvalues and eigenfunctions; Mathematical models; Electric fields; Standards; Transmission line matrix methods; Eigenvalue equation; finite-difference frequency-domain (FDFD); finite-difference time-domain (FDTD); simplified conformal (SC) scheme; spectral transformation; FREQUENCY-DOMAIN METHOD;

D O I：

10.1109/LAWP.2024.3381969

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 compact conformal 2-D finite-difference frequency-domain (FDFD) method is proposed for modeling waveports in the finite-difference time-domain (FDTD) method. To avoid time step reduction, the simplified conformal (SC) scheme is adapted to the standard FDTD formalism. Moreover, under the SC FDTD framework, the SC scheme is extended to the FDFD method to improve the accuracy of waveport mode calculations by solving eigenvalue equation. In order to improve the efficiency and practicality, the eigenvalue equation containing only two transverse electric field components is derived, and a spectral transformation is applied. Several examples including different types of waveguide structures are provided to demonstrate the accuracy and efficiency of the proposed method.

引用

页码：2091 / 2095

页数：5

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