Mohamed Karim Laoufi, S. Mekaoui, M. L. Tounsi, M. Yagoub
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A Modified FDTD Algorithm for Analysis of Anisotropic Stratified Waveguides and Multilayered Microwave Filters
In this paper, a modified FDTD algorithm is applied to analyze various anisotropic planar circuits in multilayer configuration via a new formulation of updated equations. This formulation takes into account the bianisotropic character of the substrate. For the first time, the effect of anisotropy on the cutoff frequency and bandwidth of rectangular waveguide is investigated as well as shielding effect on S parameters. Moreover, a new mesh function is proposed to reduce the CPU time. The computed results were compared to available data in literature and simulated results and a good agreement was observed.
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