In this paper, silicon carbide fiber / epoxy composites and active carbon fiber felt periodical screen / epoxy composites were prepared by compress-molding techniques. In these composites, orthogonal-arranged SiCf circuit, orthogonal-arranged electroless-nikel-plated SiCf circuit and active carbon fiber felt periodical screen acted as radar absorbers. The factors that influencing radar absorption performance of the silicon carbide fiber / epoxy composites, such as fiber distance, carbon black content and el...