研究了含活性碳毡电路屏和直立碳纤维吸波复合材料的微波吸收特性.结果表明:含碳毡电路屏吸波材料的吸波性能与电路屏的种类(感性、容性)和尺寸密切相关.含感性屏的吸波材料,当毡条间距、宽度分别为7 mm、5 mm时,材料在整个雷达波段(8～18 GHz)有-10 dB以下的反射衰减.含容性屏的吸波材料,随电路屏中碳毡块间距和边长的减小,吸波性能提高.含直立碳纤维材料的吸波性能与纤维间距有关,间距为4 mm时可获得有效带宽7.6 GHz的吸波材料.用分块设计的思想设计吸波材料,可提高其吸波性能.分块中心对称的感性电路屏(毡条宽5 mm,间距10 mm)和直立碳纤维(间距8 mm)混杂吸波体在11.8～18 GHz频带内有低于-20dB的反射衰减,最大吸收峰值-30dB.
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