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Complementary perfectly matched layers to reduce reflection errors
Author(s) -
Jin JianMing,
Sheng XinQing,
Chew Weng Cho
Publication year - 1997
Publication title -
microwave and optical technology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 76
eISSN - 1098-2760
pISSN - 0895-2477
DOI - 10.1002/(sici)1098-2760(19970405)14:5<284::aid-mop9>3.0.co;2-9
Subject(s) - perfectly matched layer , reflection coefficient , conductor , reflection (computer programming) , perfect conductor , electromagnetics , microwave , finite element method , optics , computational electromagnetics , electrical conductor , finite difference time domain method , physics , electronic engineering , mathematics , mathematical analysis , computer science , acoustics , engineering , electrical engineering , telecommunications , electromagnetic field , geometry , structural engineering , scattering , quantum mechanics , programming language
A new approach is proposed to reduce the reflection error of a perfectly matched layer (PML) in the frequency‐domain finite‐element solution of electromagnetics problems. The approach is based on the complementary nature of a PML backed by a perfect electric conductor (PEC) and one backed by a perfect magnetic conductor (PMC). By averaging the solutions obtained by PEC‐ and PMC‐backed PML, the error is reduced by 20 log\R\dB, where R is the reflection coefficient of the PEC‐ or PMC‐backed PML. Numerical results are presented to demonstrate the accuracy of the complementary PMLs. © 1997 John Wiley & Sons, Inc. Microwave Opt Technol Lett 14:284–287, 1997.