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A finite‐element realization of a 3‐D conformal PML
Author(s) -
Liu Peng,
Xu JiaDong,
Wan Wei
Publication year - 2001
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.1255
Subject(s) - conformal map , realization (probability) , finite element method , curvature , microwave , element (criminal law) , point (geometry) , perfectly matched layer , topology (electrical circuits) , computer science , mathematical analysis , geometry , physics , mathematics , engineering , electrical engineering , structural engineering , telecommunications , statistics , law , political science
The 3‐D conformal perfectly matched layer (PML) is realized by the finite‐element method (FEM). We outline the procedure, and demonstrate that it works well on highly curved scatterers. A significant challenge in this implementation is ensuring the continuity of the physical parameters in the PML region. We present explanation from the computer‐aided geometric design (CAGD) point of view, and a normal curvature‐based approximation is proposed to overcome this difficulty. © 2001 John Wiley & Sons, Inc. Microwave Opt Technol Lett 30: 170–173, 2001.