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涂层球体混合体系的等效介电常数计算及应用

刘顺华 崔晓冬 赵彦波

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涂层球体混合体系的等效介电常数计算及应用

刘顺华, 崔晓冬, 赵彦波

Study on the electromagnetic and absorption properties of the mixture filled with carbon coated EPS

Liu Shun-Hua, Cui Xiao-Dong, Zhao Yan-Bo
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  • 采用一定的包覆工艺制备了炭黑包覆发泡型聚苯乙烯(EPS)颗粒,用包覆的颗粒作为填料制备了环境适应性强的吸波材料. 将涂层球体混合体系作为密实整体考虑,计算了炭黑含量1%时的等效介电常数,并用计算结果预测了吸波性能. 与实验值对比表明,计算值是基本准确的,可以应用于新型微波暗室用吸波材料的设计和优化.
    Using the carbon coated expanded polystyrene (EPS) beads as filling admixture, the electromagnetic (EM) wave absorber more moistureproof and environment adaptive than the conventional absorber used in anechoic chamber was fabricated. The effective permittivity of the mixture with carbon volume content 1% was calculated by the strong fluctuation theory combining with Maxwell-Wagner theory; and the EM wave absorbing property of a laminated model filled with carbon coated EPS beads was predicted through calculation. Comparison with the experiment indicated that the results of calculation accorded with the experiment closely, and can be used for the design of the moistureproof EM wave absorber.
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出版历程
  • 收稿日期:  2005-07-14
  • 修回日期:  2006-02-28
  • 刊出日期:  2006-11-20

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