LAYERED ELECTROMAGNETIC WAVE ABSORBENT AND MANUFACTURING METHOD THEREOF Russian patent published in 2016 - IPC H01Q17/00 

FIELD: electromagnetic waves.

SUBSTANCE: invention relates to electromagnetic wave absorbers. For this purpose, layered absorber is made from elements, consisting: of a main absorbent layer with a thickness of 1.0-2.0 mm, made in form of stacked layers of fabric, first and last layers of fabric are metallised with copper; matching of absorbing layer formed in a layer of metallised copper grid with a mesh size of 1.5 to 2.5 mm and a thickness of 3-4 mm and electrical resistivity of 330-360 ohms, and mesh made of mineral fibres and disposed on upper absorbing surface of base layer; a protective layer deposited on upper surface of absorbent core layer; of an electrically conductive layer made of a fabric coated on its lower side in contact with protective object, a layer of nickel of thickness 15-20 mcm, and an electrically conductive layer disposed on lower surface of main absorbent layer metallised with copper. Finished product is coated with layer of ink or varnish with green coloured dye.

EFFECT: technical result is creation of layered electromagnetic wave absorber with power absorption coefficient not less than 99 % in range of 42-76 Hz and in visible region.

5 cl, 1 dwg