Self-Tuning Locally Conformal PML Mesh Truncation for 3-D Vector Finite Element Method

被引：2

作者：

Ozgun, Ozlem ^{[1
]}

Kuzuoglu, Mustafa ^{[2
]}

Mittra, Raj ^{[3
,4
]}

机构：

[1] Hacettepe Univ, Dept Elect & Elect Engn, TR-06800 Ankara, Turkiye

[2] Middle East Tech Univ, Dept Elect & Elect Engn, TR-06531 Ankara, Turkiye

[3] Univ Cent Florida, Dept Elect & Comp Engn, Orlando, FL 32816 USA

[4] KAU, Dept Elect & Comp Engn, Jeddah 21589, Saudi Arabia

来源：

IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION | 2024年 / 72卷 / 02期

关键词：

Finite element analysis; Jacobian matrices; Three-dimensional displays; Electromagnetic scattering; Shape; Standards; Perfectly matched layers; Computational electromagnetics (CEM); coordinate stretching; edge basis functions; electromagnetic radiation and scattering; finite element method (FEM); locally conformal perfectly matched layer (LCPML); vector wave equation; PERFECTLY MATCHED LAYER; ABSORBERS;

D O I：

10.1109/TAP.2023.3333929

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：

This communication presents a novel formulation of the locally conformal perfectly matched layer (LCPML) method, called LCPML-log, which uses a logarithmic decay function. The method is designed to solve electromagnetic radiation and scattering problems using the 3-D vector finite element method (FEM). LCPML-log has two distinct features that distinguish it from previous PML implementations. First, it does not require any parameter adjustments to optimize its performance, making it self-tuning. Second, it needs only a single layer, which makes it cost-effective as it reduces the number of unknowns within the PML layer. The proposed method is formulated for the vector FEM based on edge basis functions for 3-D scattering problems, and its effectiveness is demonstrated through numerical results.

引用

页码：2036 / 2040

页数：5

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