In this study, we use conductive and permeable metal powders and carbon powders were separately mixed with resin, and coating the different type conductive resin on the polyester woven fabrics for designing the electromagnetic wave absorbing screens. We employ the different quantity and type of powders, for example, copper powders, iron powders, carbon powders to control the surface resistance. According to the parameter; to improve absorbing screen by impedance match, and then analysis the performance of attenuation effect from different absorbing screens and the number of layers. The study supply the method of proof theory and measure the effects of absorbing products. From the experimental results, as electromagnetic wave incidence absorbing with the impedance of screen is from high to low the attenuation effect is increased. And the attenuation effect is increased with increasing the number of layers.
