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

Date

2007-03-01

Author

Ozgun, Ozlem
Kuzuoğlu, Mustafa

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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

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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.