The impedance matching design is briefly introduced. Three kinds of conductive fibers were prepared. Then the fibers were woven into tabby fabrics. A new kind of multilayer structural radar absorbing material was made with these conductive tabby fabrics. From 8.4GHz to 18GHz, the reflection attenuation of the material exceeds 10dB. The material is light (3.2mm thick and density 1.38g/cm³) and of good mechanical properties (flexural strength 173MPa，toughness 12.53GPa).