According to the optimization results the four-layer absorbing material was prepared,and the band width with reflection loss below-10dB is obtained over 8GHz and the minimum value of reflection loss reaches-39.3dB.

• 根据优化结果制备了含有四个结构层的吸波复合材料；材料-10dB以下的频带宽度为8GHz；最大反射衰减-39.；3dB。