超材料结构单元轮廓法对吸波材料衰减吸收频带的拓宽与优化

材料工程, 2014, (11): 1-6. doi: 10.11868/j.issn.1001-4381.2014.11.001

超材料结构单元轮廓法对吸波材料衰减吸收频带的拓宽与优化

黄大庆 ^1, , 康飞宇 ^2, , 周卓辉 ^3, , 刘翔 ^4, , 丁鹤雁 ^5,

1.清华大学材料学院,北京100084;北京航空材料研究院,北京100095

2.清华大学材料学院,北京,100084

3.北京航空材料研究院,北京,100095

4.北京航空材料研究院,北京,100095

5.北京航空材料研究院,北京,100095

关键词：超材料 , 轮廓 , 双带宽 , 宽频吸波材料

Broadening and Optimizing Microwave Absorbing Bandwidth by Metamaterial Unit Contour Method

Keywords： metamaterial , contour , dual band , broadband microwave absorbing material

设计了一个由金属谐振单元、FR4基板和金属背板构成的超材料吸波体,通过数值仿真软件对该吸波体在2～8GHz范围内的S参数以及吸收率特征进行了计算;对这个模型进行了取轮廓化的处理,通过计算发现这种处理对其谐振吸收基本上没有影响;在此基础上,通过在这个轮廓模型中加入其他谐振单元,实现了双频带范围的微波衰减吸收.通过激光刻蚀的方法,对所设计的模型进行了实验验证,发现计算结果和实验结果有很好的一致性,这就验证了超材料轮廓法拓宽吸波材料的技术思路,为宽频带超材料吸波体的研究提供了一个可行的技术途径.

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超材料结构单元轮廓法对吸波材料衰减吸收频带的拓宽与优化

Broadening and Optimizing Microwave Absorbing Bandwidth by Metamaterial Unit Contour Method

参考文献