ABSORBING COATING Russian patent published in 2006 - IPC H01Q17/00 

FIELD: reduced probability of weapon and other war materiel location by radar.

SUBSTANCE: controllable layer is made in the form of thin film of evaporated graphite and disposed between first and second insulating layers; first bidimensional-periodic lattice made of evaporated metal strips is disposed on external side of first insulating layer; second bidimensional-periodic lattice made of evaporated metal strips is disposed between second and third insulating layers; other side of third layer carries reflecting screen; conductivity B₁ of first bidimensional-periodic lattice and thickness d₁ of first insulating layer ensuring minimal level of echo signal in desired frequency band are chosen from mathematical expressions given in description of invention. Thicknesses of second and third insulating layers d₂ and d₃ of second and third insulating layers, respectively' as well as refractive indices of first, second, and third insulating layers n_1, n₂ n₃, respectively, are chosen from expressions given in description of invention.

EFFECT: reduced cost of coating.

1 cl, 5 dwg