ELECTROMAGNETIC WAVE ATTENUATING AND DEICING STRUCTURE

摘要

PCT No. PCT/US90/00589 Sec. 371 Date Apr. 8, 1991 Sec. 102(e) Date Apr. 8, 1991 PCT Filed Feb. 6, 1990 PCT Pub. No. WO91/12173 PCT Pub. Date Aug. 22, 1991.A composite structure (64) is disclosed for placement on an air, land or sea vehicle to attenuate electromagnetic waves and to break up ice accumulation which might occur under adverse weather conditions. The upper section (22) of the structure comprises a nonmagnetic, pneumatic deicer having a deformable sheet formed of a woven cloth substrate and a fluid-impervious resilient coating, and fluid passages for inflating the deicer section. The deicer section is attached to an underlying section (28) which provides electromagnetic wave attenuating properties. The lower section may be a dual band absorber having an upper elastomeric layer and a lower elastomeric layer loaded with magnetic particles, or the elastomeric deicer section may itself serve as the upper elastomeric layer with the magnetic particle layer.