ANTIRADAR COATING Russian patent published in 2009 - IPC H01Q1/38 

FIELD: radio engineering.

SUBSTANCE: invention is related to materials for absorption of electromagnet waves (EMW) and may be used to reduce irregularity or to improve shape of antenna diagrams (AD) in antenna devices comprising one or more antennas, which are located in close proximity to metal or dielectric surface of complex geometric shape, and also to reduce radiolocating visibility of antenna system, for instance of airplane application. Substance of invention consists in the fact that in compound based on dielectric, comprising carbonyl iron and polymer binder, as polymer binder they use epoxide elastomer with hardener, with the following ratio of components, wt parts: epoxide elastomer - 100, hardener - 8, carbonyl iron - 200-600. At the same time antiradar coating is single-layer, and its thickness is defined based on condition of minimum irregularity of antenna diagram, and in required range of frequencies and polarisations it amounts to 0.18 λ, av. At the same time irregularity of antenna diagram does not exceed 0.1-0.3 dB.

EFFECT: this antiradar coating has high adhesive and mechanical strength and is convenient for application directly onto item.

2 dwg, 1 tbl