RADAR ABSORBING MATERIAL Russian patent published in 2022 - IPC C09D5/32 H01Q17/00 

FIELD: radio absorbing materials.

SUBSTANCE: invention relates to the field of radio absorbing materials, in particular composite materials, the composition and structure of which ensures the effective absorption of electromagnetic radiation in a certain range of radio wavelengths. Composite radio-absorbing material contains a polymer binder, carbon nanotubes and powder filler. As a filler, a high-entropy material with an M-type hexaferrite structure is chosen in the form of a powder with a dispersion of 5-50 mcm, synthesized from the following components, wt.%: Fe₂O₃ - 10…60; Ga₂O₃ - 5…19; Al₂O₃ - 3…11; SnO₂ - 9…30; ZnO - 5…17; BaCO₃ - 15…17.

EFFECT: invention makes it possible to smoothly change the magnetic and electrophysical characteristics of the material in accordance with the required value of the level or power of the reflected/absorbed electromagnetic wave.

1 cl, 2 dwg