Autocollimation of gaussian beam reflected by nonrectangular reflect array

This paper investigates dispersion of three-dimensional Gaussian wave beam on a two-dimensional periodical array of short-circuited waveguides with beveled (nonrectangular) grid in the autocollimation mode. Correlation of reflection rates in terms of power and the length of short-circuited waveguides has been estimated for specular and non-specular beams. Relation of reflected beams directional pattern in the far field to the array and incident beam parameters has been investigated. Three-dimensional directional patterns have been designed in terms of the power of specular and non-specular beams in the far field. Energy characteristics and three-dimensional directional patterns have been obtained for the non-specular beam in the far field.