Investigation on peak frequency of the microwave absorption for carbonyl iron/epoxy resin composite
Investigation on peak frequency of the microwave absorption for carbonyl iron/epoxy resin composite
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DOI：
10.1016/j.jmmm.2010.12.028
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发表时间：
2011-04
影响因子：
2.7
通讯作者：
B. Wang;Jianqiang Wei;Yong Yang;Tao Wang;Fashen Li
中科院分区：
文献类型：
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作者：
B. Wang;Jianqiang Wei;Yong Yang;Tao Wang;Fashen Li
研究了不同体积浓度羰基铁/环氧树脂复合材料在0.1 ~ 18ghz范围内的吸波特性。根据样品的电磁参数和厚度，数值计算和实验表明，微波吸收的频率依赖关系符合四分之一波长（λ/4）匹配模型，该模型不仅可以解释峰值频率，而且可以解释峰值数量。这意味着四分之一波长条件可以成功地用于理解和预测铁磁金属基复合材料的微波吸收峰值频率。
Microwave absorbing characteristics of carbonyl iron/epoxy resin composite with various volume concentrations were investigated in 0.1–18GHz. According to the electromagnetic parameters and thicknesses of the sample, numerical calculation and experiment have demonstrated that the frequency dependence of the microwave absorption comply with the quarter-wavelength (λ/4) matching model that may explain not only the peak frequency but also the number of the peaks. It implies that the quarter-wavelength condition can be successfully applied to understand and predict the peak frequency of the microwave absorption for ferromagnetic metal-based composites.