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Structure under analysis (top) and equivalent waveguide problem (bottom).
Transmission line and equivalent circuit model for the waveguide problem in Fig. 1.
Transmission coefficient vs frequency for a periodic array of slits of width and period printed on a single dielectric slab of relative permittivity and different thicknesses. Solid lines: data obtained with a mode matching code. Points: data obtained with our model.
Transmission coefficient vs frequency for a periodic array of slits of width and period sandwiched between two dielectric slabs with , , , and .
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