WAVEGUIDE REFLECTIVE ANTENNA ARRAY Russian patent published in 2019 - IPC H01Q21/00 

FIELD: antenna equipment.

SUBSTANCE: invention relates to the antenna equipment. Antenna grid consists of metal reflector and metal layer with round holes of equal radius of different depth. Thickness of metal layer, depth of holes, their mutual arrangement and radius satisfy condition of focusing of irradiation field at working frequency. Metal layer is made in form of a set of plates of equal thickness, depth of holes of metal layer varies with pitch equal to thickness of metal plates, and to metal layer with round holes adjoins dielectric layer with cylinders protruding from it of different height and identical radii, coinciding with radii of round holes in metal layer, and such mutual arrangement that protruding cylinders of dielectric layer are completely embedded into metal layer. Depth of holes of metal layer and height of cylinders of dielectric layer satisfy condition of focusing of irradiation field at working frequency.

EFFECT: technical result consists in improvement of operational stability and reduction of cross dimensions of structure.

1 cl, 16 dwg