| 双层结构型微波吸收材料的计算机辅助设计 |
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| 引用本文： | 王相元,陆怀先.双层结构型微波吸收材料的计算机辅助设计[J].南京大学学报(自然科学版),1989,25(2):261-266. |
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| 作者姓名： | 王相元 陆怀先 |
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| 作者单位： | 南京大学信息物理系，南京大学物理系，南京大学化学系，南京大学信息物理系，南京大学信息物理系 |
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| 摘 要： | 本文给出了双层結构型微波吸收材料的计算机辅助设计的方法和例子。不改变涂层的总厚度,其微波吸收性能一般均较单层涂料型的为好。例如,中心频率为10GHz,厚度为2mm,反射系数阀值为-20db时,双层结构型的工作带宽为4.5GHz,在同样条件下,单层涂料型的为3.3GHz。厚度为3.97mm,在7—13GHz频率范围内,双层结构型微波吸收材料的最小反射系数阀值为-31db,而单层涂料型为-18db.
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| 关 键 词： | 微波吸收材料 计算机辅助设计 |
THE COMPUTER AIDED DESIGN OF DOUBLE-LAYERED STRUCTURES FOR MICROWAVE ABSORPTION |
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| Wang Xiangyuan.THE COMPUTER AIDED DESIGN OF DOUBLE-LAYERED STRUCTURES FOR MICROWAVE ABSORPTION[J].Journal of Nanjing University: Nat Sci Ed,1989,25(2):261-266. |
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| Authors: | Wang Xiangyuan |
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| Institution: | Wang Xiangyuan(Department of Information Physics) Hu Guoyou(Department of Chemistry)Lu Huaixian (Department of Physics) Qian Jian Wang Wei(Department of Information Physics) |
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| Abstract: | The method and examples of computer aided design of doable-layered structures for microwave absorption are discussed in this paper.The microwave absorbing performance of the double-layered structure is ingeneral better than that of a single coating even if the thickness of the former is the same as that of the latter.For example,the bandwidth is 4.5GH_z for a double-layered structure as the center frequency is at-10GH_z,the thickness of the absorbing material is equal to 2mm and the critical value of the reflected coefficient is equal to-20db,but 3.3GH_z for a single coating in the same condition.The minimum critical value of the reflection coefficient is equal to-31db for double-layered structures when the thickness of the absorbing material is equal to 3.97mm, the frequency ranges-from 7GH_z to 13GH_z,but-13db for a single coating in the same condition |
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| Keywords: | Microwave absorbing materials Computer aided design |
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