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对于电磁参数不一致的非均匀电磁波吸收层，导出了波动方程及层表面无反射的条件，确立了这种吸收层的电磁参数分布，给出了有金属衬底的吸波介质层的反射系数，研究了其频率特性．
For the non-uniform electromagnetic wave absorbing layer with different electromagnetic parameters, the wave equation and the condition of non-reflection on the layer surface are deduced. The electromagnetic parameter distribution of this absorbing layer is established. The reflection coefficient of the absorbing medium layer with metal substrate is given, Studied its frequency characteristics.