Abstract
AbstractThe 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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