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An envelope finite‐element time‐domain method using weighted Laguerre polynomials as temporal expansion functions
Author(s) -
Yang Liguo,
McNamara Derek A.,
Meng Xiangjun
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.21389
Subject(s) - laguerre polynomials , envelope (radar) , finite element method , time domain , mathematics , element (criminal law) , microwave , mathematical analysis , domain (mathematical analysis) , algorithm , computer science , engineering , telecommunications , structural engineering , radar , law , political science , computer vision
The advantage of the envelope finite‐element time‐domain (EFETD) method compared to the direct finite‐element time‐domain (FETD) method is that a much larger time step can be used. Although both approaches use the Newmark–Beta technique for time‐stepping, it has recently been demonstrated for the FETD method that weighted Laguerre polynomials may be profitably used as temporal expansion functions, obviating the need for the time‐stepping scheme. In this paper, the incorporation of such temporal expansion functions into the EFETD method is proposed and demonstrated. © 2006 Wiley Periodicals, Inc. Microwave Opt Technol Lett 48: 495–497 2006; Published online in Wiley InterScience (www.interscience.wiley.com) DOI 10.1002/mop.21389