Ligneous type radio wave absorption building material

摘要

It contains 20 - 80% nonmagnetic stainless steel powders at specific volume the plate which consists of the natural lumber or the processed ligneous material opposing, through the magnetic layer which includes the ferrite powder in the lamination type magnetic lumber which it bonds, vis-a-vis the ferrite powder, total cubic measure content ratio of the ferrite powder and the nonmagnetic stainless steel powder in magnetic layer is 10 - 40%, thickness of magnetic layer is 0.5 - 5.0mm, the ligneous type radio wave absorption which features that center frequency is inside 1 - 8GHz, possesses the radio wave absorption quality above 10dB in the frequency 2.45GHz band or the 5.2GHz bandMaterial.