| 复合磁介质吸波材料 |
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| 引用本文： | 娄明连,阚涛.复合磁介质吸波材料[J].磁性材料及器件,2002,33(5):13-15. |
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| 作者姓名： | 娄明连 阚涛 |
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| 作者单位： | 安徽大学,物理系,安徽合肥,230039 |
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| 摘 要： | 将两种铁砂基复合吸收剂，按一定的比例掺在水泥中，在8-12GHz频段测试其吸波特性。发现吸收剂在水泥中添加量存在最佳值，达最佳浓度时，掺铁砂和铁氧体的吸波建筑材料最大吸收量分别由18db和22.5dB提高到27Db和25.3dB，15db带宽增宽一倍多，不同磁介质最佳浓度不同，铁砂磁介质含量小于铁氧体。磁介质浓度越低，匹配厚度越厚。
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| 关 键 词： | 磁介质 电磁波吸收 吸波材料 复合吸收剂 |
| 文章编号： | 1001-3830(2002)05-0013-03 |
| 修稿时间： | 2002年1月11日 |
EM Wave Absorption Construction Materials Containing Magnetic Media |
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| LOU Ming-lian,KAN Tao.EM Wave Absorption Construction Materials Containing Magnetic Media[J].Journal of Magnetic Materials and Devices,2002,33(5):13-15. |
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| Authors: | LOU Ming-lian KAN Tao |
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| Affiliation: | LOU Ming-lian,KAN Tao Department of Physics,Anhui University,Hefei 230039,China |
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| Abstract: | Two kinds of iron-sand-based composite EM wave absorbing agent were mixed with cement with a varing proportions, and their absorption properties were studied in the frequency range of 8 to 12GHz. An optimal concentration of absorbing agent was found that results in a maximum absorption of 27dB and 25.3dB and a doubled 15dB bandwidth for the two construction absorption materials. Different optimal concentrations were found for different absorbing agents. The optimal concentration of iron-sand is less than that of iron-sand-based ferrite. It was also found that the lower the concentration of magnetic media, the thicker the matching thickness. |
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| Keywords: | magnetic media EM wave absorption material |
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