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

This paper presents a novel formulation of the locally-conformal perfectly matched layer (PML) method, called LCPML- log , which uses a logarithmic decay function. The method is designed to solve electromagnetic radiation and scattering problems using the 3D vector finite element method (FEM). LCPML...

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Bibliographic Details
Published inIEEE transactions on antennas and propagation p. 1
Main Authors Ozgun, Ozlem, Kuzuoglu, Mustafa, Mittra, Raj
Format Journal Article
LanguageEnglish
Published IEEE 23.11.2023
Subjects
Computational Electromagnetics (CEM)
coordinate stretching
edge basis functions
electromagnetic radiation and scattering
Electromagnetic scattering
Finite element analysis
Finite Element Method (FEM)
Jacobian matrices
Locally-Conformal Perfectly Matched Layer (LCPML)
Perfectly matched layers
Shape
Three-dimensional displays
vector wave equation
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Summary:This paper presents a novel formulation of the locally-conformal perfectly matched layer (PML) method, called LCPML- log , which uses a logarithmic decay function. The method is designed to solve electromagnetic radiation and scattering problems using the 3D vector finite element method (FEM). LCPML- log has two distinct features that distinguish it from previous PML implementations. Firstly, it does not require any parameter adjustments to optimize its performance, making it self-tuning. Secondly, 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 3D scattering problems, and its effectiveness is demonstrated through numerical results.
ISSN:0018-926X
1558-2221
DOI:10.1109/TAP.2023.3333929