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Performance of regular PML, CFS‐PML, and second‐order PML for waveguide problems
Author(s) -
Correia Davi,
Jin JianMing
Publication year - 2006
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/mop.21872
Subject(s) - perfectly matched layer , finite difference time domain method , order (exchange) , computer science , electronic engineering , physics , engineering , optics , business , finance
The performance of regular, complex frequency shifted (CFS), and second‐order perfectly matched layers (PMLs) is studied for the numerical simulation of waveguide problems. The limitations of each PML is clearly demonstrated. It is shown that the second‐order PML is overall the best choice for a general problem, since the regular PML is incapable of absorbing evanescent waves and the CFS‐PML is ineffective for the absorption of low‐frequency propagating waves. Both two‐ and three‐dimensional problems are considered to confirm the analysis. © 2006 Wiley Periodicals, Inc. Microwave Opt Technol Lett 48: 2121–2126, 2006; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.21872