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“Enhanced PML Performance Using Higher Order Approximation”

Jamid, H.A. (2004) “Enhanced PML Performance Using Higher Order Approximation”. IEEE Journal of Microwave Theory and Techniques, 52 (4). pp. 1166-1174.

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Abstract

In this paper, the perfectly matched layer (PML) based on transformation of space into the complex domain is assessed in the method-of-lines framework. The method used in the assessment is based on field symmetry and has the advantage of eliminating numerical error due to discretization of space. The remaining error, which is due only to reflection from the PML, is used to quantify the PML performance. This assessment method is used to demonstrate that higher order approximation to the transverse second derivative operator results in substantial reduction in the unwanted numerical reflection from the PML, leading to enhanced PML efficiency. By using higher order approximation in tandem with a suitably graded PML loss profile, it is possible to obtain a very efficient PML implementation, making it possible to effectively absorb a beam with a large angular spread using only a few number of sample points in the PML.



Item Type:Article
Date:April 2004
Subjects:Electrical
Divisions:College Of Engineering Sciences > Electrical Engineering Dept
Creators:Jamid, H.A.
Email:hajamed@kfupm.edu.sa
ID Code:357
Deposited By:AYHAM ZAZA
Deposited On:15 Mar 2008 16:55
Last Modified:12 Apr 2011 13:06

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