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A finite‐element formulation for FDTD subgridding
Author(s) -
Bonilla Matthieu,
Wong ManFaï,
Fouad Hanna Victor
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.10103
Subject(s) - finite difference time domain method , finite element method , microwave , dipole , antenna (radio) , space (punctuation) , electromagnetic field , excitation , electronic engineering , mathematical analysis , engineering , physics , mathematics , computer science , electrical engineering , telecommunications , optics , structural engineering , quantum mechanics , operating system
In this paper, a finite‐element based 3‐D FDTD space/time subgridding scheme is presented. A classical Yee scheme is obtained strictly inside domains having different space and time discretizations. Considering one domain, the presence of the other domain is taken into account through an electric‐field excitation distributed throughout the mesh interface. The validity of the proposed technique is demonstrated through its application on two test cases: a Hertzian dipole and a mobile‐phone antenna. © 2002 John Wiley & Sons, Inc. Microwave Opt Technol Lett 32: 104–108, 2002.