A Higher-Order Perfectly Matched Layer for Open-Region, Waveguide, and Periodic Electromagnetic Problems
Correia, Davi
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Permalink
https://hdl.handle.net/2142/80994
Description
Title
A Higher-Order Perfectly Matched Layer for Open-Region, Waveguide, and Periodic Electromagnetic Problems
Author(s)
Correia, Davi
Issue Date
2006
Doctoral Committee Chair(s)
Jin, Jianming
Department of Study
Electrical and Computer Engineering
Discipline
Electrical and Computer Engineering
Degree Granting Institution
University of Illinois at Urbana-Champaign
Degree Name
Ph.D.
Degree Level
Dissertation
Keyword(s)
Engineering, Electronics and Electrical
Language
eng
Abstract
In this dissertation the idea of a higher-order perfectly matched layer (PML) is proposed. Using a metric coefficient that includes both the regular and the complex frequency shifted (CFS) PMLs, it is possible to obtain a PML that includes the advantages of both of them. The second-order PML is applied to waveguide, periodic, and open-region electromagnetic problems and its performance is compared to the regular's and the CFS-PML's performance. The second-order PML outperforms both and its performance is proved to be independent of the formulation or the simulation technique, since the same behavior was observed using a stretched-coordinate approach in finite-difference timedomain and uniaxial PML in time-domain finite-element method.
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