Abstract
In this paper, we study EBG-waveguides in an electromagnetic crystal in the form of a two-dimensionally periodic lattice of metal cylinders with a triangular grid. The dispersion characteristics of waveguides formed by removing one, two, and three rows of cylinders along the orthogonal axes of the crystal are obtained. A parametric analysis of the critical frequencies of the waveguide modes and eigenwaves of a homogeneous crystal is performed. Electrodynamic modeling was performed in the ANSYS HFSS system using the eigenwave mode. The optimal parameters of the electromagnetic crystal, which provide the maximal operating frequency bands of waveguides with various orientations in the grid, are obtained. The characteristics of waveguides in crystals with triangular and square grids are compared.
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