In this study discuss with the Al2O3 mix unsaturated polyester resin protects the curtain the composite materials. The experimental goal synthesizes the electromagnetic absorber in the discussion Al2O3 content and the multilayer impedance matching group to influence the electromagnetic absorption effect, by makes further the discussion to the electromagnetic absorption effect. Knew by the experimental result that, Matches two Al2O3 absorber screens, has the better absorption effect and the bandwidth, and may reduce the material cost and thickness, increase the application convenience.
