Theoretical study on wave-absorption properties of a structure with left- and right-handed materials
Theoretical study on wave-absorption properties of a structure with left- and right-handed materials
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DOI：
10.1016/j.matdes.2008.03.015
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发表时间：
2008-10
影响因子：
8.4
通讯作者：
Zhengping Wang;Zhenhui Zhang;S. Qin;Lihui Wang;Xiaoxiao Wang
中科院分区：
文献类型：
--
作者：
Zhengping Wang;Zhenhui Zhang;S. Qin;Lihui Wang;Xiaoxiao Wang
提出了一种空气/左手介质/右手介质/金属结构的吸波体模型。对该结构的吸波性能进行了理论分析和数值模拟。采用遗传算法对结构参数进行了优化。结果表明，在波垂直入射和结构参数匹配良好的条件下，可以降低反射率峰值，展宽吸收带宽，在0.4 ~ 10 GHz频率范围内平均反射率可达-12dB。
A wave-absorber model with air/left-handed medium/right-handed medium/metal structure is proposed. The wave-absorption properties of the structure are theoretically analyzed and numerically simulated. The structure’s parameters are optimized employing a genetic algorithm. The results show that under the conditions of that the wave is normally incident and the structure parameters are well matched, the peak values of the reflectivity can be reduced, the absorbing bandwidth can be broaden and an average reflectance of −12dB can be realized in the frequency range from 0.4GHz to 10GHz.