METHOD FOR PRODUCING ELECTROMAGNETIC RADIATION ABSORBER Russian patent published in 2003 - IPC

FIELD: production of electromagnetic radiation absorbers. SUBSTANCE: absorbing capacity of material with electromagnetic wavelengths ranging between 2.5 and 36 GHz can be raised by using proposed method involving preparation of fiber mixture in three steps: during first step carbon fiber is manually apportioned to dielectric in the form of 0.5-1.0 g fragments; during second step fragments are subjected to coarse loosening until their mass is reduced below 0.01 g; third step involves fine loosening and combing of mixture, fabric fixation and fabric-to-fabric bonding being made simultaneously by piercing with needles. EFFECT: enhanced absorbing capacity of material, facilitated manufacture. 5 cl, 3 dwg