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Sensitivity analysis of the nonorthogonal fdtd method applied to the study of square coaxial waveguide structures
Author(s) -
Navarro Enrique A.,
Wu Chen,
Chung Paul Y.,
Litva John
Publication year - 1995
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.4650080307
Subject(s) - finite difference time domain method , square (algebra) , classification of discontinuities , discretization , finite element method , sensitivity (control systems) , coaxial , finite difference method , waveguide , acoustics , optics , mathematics , electronic engineering , mathematical analysis , engineering , physics , structural engineering , geometry , mechanical engineering
The nonorthogonal finite‐difference‐time‐domain method is applied to the analysis of structures in a square coaxial waveguide to demonstrate the influence of the mesh on the results. The analysis presented provides insight on how best to discretize the computational domain when modeling discontinuities with this method. Three structures, described as 90°, 120°, and 170° bends, are used as examples in our analysis. A comparison is made with results obtained using the FEM method for the 90° bend. The comparison shows good agreement between these two techniques.

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