以环氧树脂为基体制备了羰基铁粉/Co2Z型铁氧体复合吸波材料.用扫描电子显微镜(SEM)观察材料内部的微观形貌;通过矢量网络分析仪(VNA)测量所制复合材料在0.4～12 GHz频段内的复介电常数和磁导率谱.分析讨论了羰基铁粉与Co2Z铁氧体的比例对复合材料电磁参数及吸波性能的影响.结果表明:随着羰基铁粉含量的增加,复合材料的介电常数与磁导率均逐渐增大;羰基铁粉的质量分数为40％,所制复合材料的吸波性能最好,当厚为2 mm,其反射损耗小于-10 dB的带宽达5.3 GHz;厚为2.8 mm,在5.1 GHz处具有-42.6 dB的最低反射损耗.
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