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On the use of the matrix‐pencil technique to improve the computational efficiency of the FDTD method
Author(s) -
Cheng Feng,
Yang Quanrang
Publication year - 2000
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 - 10.1002/1098-2760(20001105)27:3<213::aid-mop21>3.0.co;2-v
Subject(s) - matrix pencil , finite difference time domain method , pencil (optics) , computation , exponential function , microwave , matrix (chemical analysis) , matrix exponential , algorithm , mathematics , computer science , computational science , physics , mathematical analysis , optics , materials science , telecommunications , eigenvalues and eigenvectors , quantum mechanics , composite material , differential equation
In this paper, we apply the matrix‐pencil (MP) technique to extract the complex exponentials from a truncated time response computed by using the FDTD method. To obtain accurate parameters without further FDTD computations, the truncated time response is efficiently extended into the future by summing the complex exponentials with complex coefficients. Three examples are analyzed to illustrate the efficiency of the matrix‐pencil method. © 2000 John Wiley & Sons, Inc. Microwave Opt Technol Lett 27: 213–216, 2000.