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

ÖZGÜN Ö., KUZUOĞLU M., Mittra R.

IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION, vol.72, no.2, pp.2036-2040, 2024 (SCI-Expanded) identifier

  • Publication Type: Article / Article
  • Volume: 72 Issue: 2
  • Publication Date: 2024
  • Doi Number: 10.1109/tap.2023.3333929
  • Journal Name: IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, PASCAL, Aerospace Database, Applied Science & Technology Source, Business Source Elite, Business Source Premier, Communication Abstracts, Compendex, Computer & Applied Sciences, INSPEC, Metadex, zbMATH, Civil Engineering Abstracts
  • Page Numbers: pp.2036-2040
  • Hacettepe University Affiliated: Yes

Abstract

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.