钢纤维混凝土的吸波性能研究

Research on absorbing EMW properties of steel-fiber concrete

对建筑工程中广泛应用的厘米级钢纤维混凝土的吸波性能进行了研究 ,以期能探索一条大型建筑及军事掩体的电磁防护新途径。研究了不同长度、不同占空比钢纤维混凝土对军用频率范围电磁波的吸收衰减特性 ,并分析了它们之间的关系。 2～ 18GHz其最大吸收率达 9.8dB ,4dB带宽最高 15 .2 8GHz。

The EMW absorption properties of steel fiber concrete were analyzed in order to search for a new protection way of grand buildings and martial hiding constructions. The characteristics of material absorbing EMW with different fiber length-diameter ratio and different volume fraction in 2-18 GHz frequency range were studied. The maximum absorptivity was 9.8 dB and the bandwidth for 4 dB was 15.28 GHz.