Non-Maxwellian locally-conformal PML absorbers for finite element mesh truncation

Date

2007-03-01

Author

Ozgun, Ozlem
Kuzuoğlu, Mustafa

Metadata

Show full item record

This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Item Usage Stats

238
views

0
downloads

We introduce the locally-conformal perfectly matched layer (PML) approach, which is an easy and straightforward PML implementation, to the problem of mesh truncation in the finite element method (FEM). This method is based on a locally-defined complex coordinate transformation which has no explicit dependence on the differential geometric characteristics of the PML-free space interface. As a result, it is possible to handle challenging PML geometries with interfaces having arbitrary curvature, especially those with curvature discontinuities. In order to implement this approach, we also introduce the concept of complex space FEM using elements with complex nodal coordinates. After developing the analytical background of this method, we present some numerical results to demonstrate the performance of this method in three-dimensional electromagnetic scattering problems.

Subject Keywords

Electrical and Electronic Engineering

URI

https://hdl.handle.net/11511/42700

Journal

IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION

DOI

https://doi.org/10.1109/tap.2007.891865

Collections

Department of Electrical and Electronics Engineering, Article

Suggestions

OpenMETU
Core

CBFEM-MPI: A Parallelized Version of Characteristic Basis Finite Element Method for Extraction of 3-D Interconnect Capacitances Ozgun, Ozlem; Mittra, Raj; Kuzuoğlu, Mustafa (Institute of Electrical and Electronics Engineers (IEEE), 2009-02-01) In this paper, we present a novel, non-iterative domain decomposition method, which has been parallelized by using the message passing interface (MPI) library, and used to efficiently extract the capacitance matrixes of 3-D interconnect structures, by employing characteristic basis functions (CBFs) in the context of the finite element method (FEM). In this method, which is Failed CBFEM-MPI, the computational domain is partitioned into a number of nonoverlapping subdomains in which the CBFs are constructed b...
Multicenter perfectly matched layer implementation for finite element mesh truncation Ozgun, Ozlem; Kuzuoğlu, Mustafa (Wiley, 2007-04-01) We present the multicenter perfectly matched layer (PML) technique, which is an easy and practical conformal PML implementation, obtained by the complex coordinate stretching, to the problem of mesh truncation in the finite element method. After developing the analytical background of this method. we demonstrate its performance in electromagnetic radiation/scattering problems. (c) 2007 Wiley Periodicals, Inc.
Iterative leap-field domain decomposition method: a domain decomposition finite element algorithm for 3D electromagnetic boundary value problems Ozgun, O.; Kuzuoğlu, Mustafa (Institution of Engineering and Technology (IET), 2010-04-01) The authors introduce the iterative leap-field domain decomposition method that is tailored to the finite element method, by combining the concept of domain decomposition and the Huygens' Principle. In this method, a large-scale electromagnetic boundary value problem is partitioned into a number of suitably-defined 'small' and manageable subproblems whose solutions are assembled to obtain the global solution. The main idea of the method is the iterative application of the Huygens' Principle to the fields ra...
EFIE-Tuned Testing Functions for MFIE and CFIE Karaosmanoglu, Bariscan; Ergül, Özgür Salih (Institute of Electrical and Electronics Engineers (IEEE), 2017-01-01) A recently developed numerical technique for improving the accuracy of the magnetic-field integral equation and the combined-field integral equation with low-order discretizations using the Rao-Wilton-Glisson functions is demonstrated on iterative solutions of large-scale complex problems, in order to prove the effectiveness of the proposed strategy as an alternative way for accurate and efficient analysis of multifrequency applications.
Locally-conformal perfectly matched layer implementation for finite element mesh truncation Ozgun, Ozlem; Kuzuoğlu, Mustafa (Wiley, 2006-09-01) In this article, we introduce the locally conformal perfectly matched layer (PML) technique, which is an easily implementable conformal PML implementation, obtained via complex coordinate transformation, for the purpose of mesh truncation in the finite element method. After deriving the governing equations, we test this technique using electromagnetic scattering problems. (C) 2006 Wiley Periodicals, Inc.

Citation Formats

O. Ozgun and M. Kuzuoğlu, “Non-Maxwellian locally-conformal PML absorbers for finite element mesh truncation,” IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION, pp. 931–937, 2007, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/42700.