基于结构型复合材料的复合效应和设计原理,以圆形缝隙型活性碳毡电路屏(ACFFS)为基础吸波剂,短切碳纤维(CF)为增强吸波剂,以玻璃纤维(GF)增强的环氧树脂(EP)为阻抗匹配层,设计了GF/CWACFFS多层吸波复合材料.研究了短切碳纤维质量分数和层间排布对GF/CF/ACFFS多层复合材料吸波性能的影响.研究结果表明,在2～ 18GHz频率范围内,CF质量分数为0.7％,底层为ACFFS/EP的三层吸波复合材料最大反射衰减(RL)为-38.54dB,且有效吸收带宽(RL＜-10dB)达到11.33GHz(6.17～17.5GHz).当短切碳纤维质量分数适量时可以有效提高复合材料的吸波性能,将CF和ACFFS合理组合有利于获得性能优异的吸波材料.
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