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| 单层高磁导率吸波薄膜的设计 | |
| 引用本文： | 王正斌[,] 朱博[] 冯一军[,] 姜田[,].单层高磁导率吸波薄膜的设计[J].微波学报,2009,25(5):29-31. |
| 作者姓名： | 王正斌[ ] 朱博[] 冯一军[ ] 姜田[ ] |
| 作者单位： | 1. 南京大学电子科学与工程系,南京,210093;南京邮电大学理学院,南京,210003 2. 南京大学电子科学与工程系,南京,210093 3. 南京大学电子科学与工程系,南京,210093;东南大学毫米波国家重点实验室,南京,210096 |
| 基金项目： | 国家重点基础研究发展规划(973计划)，国家自然科学基金 |
| 摘 要： | 以高磁导率薄膜作为现代电子系统内的吸波材料具有薄、轻的优点,但传统观点认为单层吸波材料的厚度取1/4个介质内波长时,会产生谐振损耗或干涉相消而致使功率反射系数最小.而本文的计算分析表明,要使目标频点的电磁波吸收最强,单层高磁损耗吸波材料的厚度一般小于1/4个介质内波长.且薄膜的磁导率实部的增加能够扩展吸波的带宽,而虚部的减小则有助于缩减吸波的带宽. |
| 关 键 词： | 高磁导率薄膜 吸波材料 反射系数 |
Design of Monolayer High-permeability Film for Absorbing |
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| WANG Zheng-bin,ZHU Bo,FENG Yi-jun,JIANG Tian.Design of Monolayer High-permeability Film for Absorbing[J].Journal of Microwaves,2009,25(5):29-31. | |
| Authors: | WANG Zheng-bin ZHU Bo FENG Yi-jun JIANG Tian |
| Institution: | 1. Dept. of Electronic Science and Engineering, Nanfing Univ. , Nanjing 210093, China; 2. College of Mathematics and Physics, Nanjing University of Posts and Telecommunications, Nanjing 210003, China; 3. State Key Laboratory of Millimeterwave, Southeast Unversity, Nanfing 210096, China |
| Abstract: | Monolayer films with high permeability, being thin and light, are very promising to be new absorbers used in mordern electronic systems. It has been conventionally thought that single-layer absorbers with the thickness to be /4 have the most efficient absorption. While this presentation demonstrates analytically that the thicknesses of high-permeability thin films, which have the best absorption at fixed frequencies, are less than λ/4. It also shows that the permeability of films has great impact on the bandwidth of absorption. |
| Keywords: | High-permeability thin films Microwave absorption Reflection loss |
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