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Effects of current source models on numerical performances in FDTD simulations
Author(s) -
Yuan Weiliang,
Liang Changhong,
Shi Xiaowei,
Wang Baikuan
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(20001005)27:1<4::aid-mop2>3.0.co;2-3
Subject(s) - finite difference time domain method , computation , excitation , current source , voltage source , microwave , resistive touchscreen , maxwell's equations , current (fluid) , voltage , physics , computer science , electronic engineering , electrical engineering , engineering , optics , algorithm , classical mechanics , telecommunications
A source model can influence FDTD numerical performance although it may be a fictitious source in some FDTD computations. The current source models for FDTD excitation, both resistance free and resistive, are presented, respectively, which are directly derived from Maxwell's equations. The former is simple in implementation and high in computational accuracy by comparison with a voltage source excitation, and the latter possesses stability, and can reduce the computation time as the resistance is properly chosen, which means it can be optimized in terms of its internal resistance. © 2000 John Wiley & Sons, Inc. Microwave Opt Technol Lett 27: 4–7, 2000.