采用空间回路网法计算得到填充吸波泡沫的碳纤维复合材料格栅结构的电磁散射性能.根据格栅结构的周期性排布特征,采用Floquet定理分析结构的周期性边界条件,将计算模型简化为一个周期单元进行电磁场分布计算.通过计算结果分析结构在不同频率、不同单元体尺寸下的吸波性能.计算表明:对于含吸波泡沫的复合材料格栅结构,其吸波性能明显好于未填充结构;格栅单元中所填充的泡沫厚度以及泡沫体积分数是影响格栅结构吸波性能的2个主要因素.
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