| 一种新型双频带电磁超介质吸波材料 |
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| 引用本文： | 普拉提·依布拉音,程用志,杨河林. 一种新型双频带电磁超介质吸波材料[J]. 华中师范大学学报(自然科学版), 2009, 43(4) |
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| 作者姓名： | 普拉提·依布拉音 程用志 杨河林 |
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| 作者单位： | 喀什师范学院物理系,新疆喀什,844000;华中师范大学物理科学与技术学院,武汉,430079 |
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| 基金项目： | 新疆维吾尔自治区高校重点科研自然科学基金 |
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| 摘 要： | 提出并设计了一种新型双频带特性的电磁超介质吸波材料.在微波段9-18 GHz利用自由空问法对材料的电磁特性即:反射系数S_(11)和透射系数S_(21)进行测量.透射系数S_(21)在整个频率范围内小于-15 dB;反射系数S_(11)在9.5 GHz和16.5 GHz附近分别为-16 dB和-12 dB.透射系数和两个频率点的反射系数的实验测量值与仿真结果基本吻合,显示了该材料具有非常强的双频带吸波特性.
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| 关 键 词： | 电磁超介质 反射系数 透射系数 吸波材料 |
A novel dual-band metamaterial absorber |
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| IBRAHIN Pulati,CHENG Yongzhi,YANG Helin. A novel dual-band metamaterial absorber[J]. Journal of Central China Normal University(Natural Sciences), 2009, 43(4) |
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| Authors: | IBRAHIN Pulati CHENG Yongzhi YANG Helin |
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| Abstract: | In this paper, we have proposed and designed a new dual-band metamaterial absorber based on impedance-matched theory. The electromagnetic properties of metamaterial absorber sample were measured using free space method in microwave frequency from 8 to 18 GHz. The mersured resultes indicated that the transmission coefficients (S_(21)) are lower than -10 dB across the entire measurement frequency range, and the reflectance coefficients (S_(11)) are -16 dB and--12 dB around 9. 5 GHz and 16. 5 GHz, respectively. The measurement results of the transmission coefficients and the reflectance coefficients of two frequency pionts are good agreement with simulation results, which indicated that our designed structure have dual-band absorptivity strongly. |
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| Keywords: | metamaterial transmission coefficients reflectance coefficients absorber material |
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