电波吸收材料与电磁屏蔽材料有显著不同。电磁屏蔽材料有金属材料、导电性材料和磁性材料，而电波吸收材料则包括电阻性吸收材料、电介质吸收性材料和磁性吸收材料；从材料厚度上来讲，电磁屏蔽材料是非常薄的，只有０．１ｍｍ的数量级，而电波吸收材料则较厚一般为数ｍｍ；从? Radiowave absorption materials and electromagnetic shielding materials are significantly different. Electromagnetic shielding materials are metal materials, conductive materials and magnetic materials, and radio wave absorbing materials include resistive absorbent material, dielectric absorbent material and magnetic absorbent material; from the material thickness, the electromagnetic shielding material is very thin, only 0 .1mm orders of magnitude, while the radio wave absorption material is generally thicker mm; from?