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| 介质参数对吸收体电磁散射影响的研究 | |
| 引用本文： | 潘顺康,吕善伟,周沁,冯克明.介质参数对吸收体电磁散射影响的研究[J].宇航计测技术,2007,27(5):37-40,44. |
| 作者姓名： | 潘顺康 吕善伟 周沁 冯克明 |
| 作者单位： | 1. 桂林电子工业学院,广西桂林,541004;北京航空航天大学,电子信息工程学院,北京,100083 2. 北京航空航天大学,电子信息工程学院,北京,100083 3. 桂林电子工业学院,广西桂林,541004 4. 北京无线电计量测试研究所,北京,100039 |
| 摘 要： | 二维周期渐变微波吸收体由金属基体和涂敷有耗介质构成。有耗介质的厚度、介电常数和磁导率是影响吸收体电磁散射特性的主要因素,因此有必要分析这些参数对吸收体电磁散射特性的影响。根据吸收体的二维周期性结构特点,把分析介质参数对吸收体雷达散射截面(RCS)的影响简化成分析介质参数对涂敷导体二面角RCS的影响。利用矩量法给出涂敷导体二面角的RCS随介质参数变化的计算例子,并结合天线阵列技术算出最佳介质厚度时吸收体的RCS。 |
| 关 键 词： | 矩量法 雷达散射截面 电磁散射 有耗介质散射 |
| 文章编号： | 1000-7202(2007)05-0037-04 |
| 修稿时间： | 2006年10月20 |
Research on Electromagnetic Scattering of Absorber Affected by the Parameter of Dielectric |
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| PAN Shun-kang,LV Shan-wei,ZHOU QIN,FENG Ke-ming.Research on Electromagnetic Scattering of Absorber Affected by the Parameter of Dielectric[J].Journal of Astronautic Metrology and Measurement,2007,27(5):37-40,44. | |
| Authors: | PAN Shun-kang LV Shan-wei ZHOU QIN FENG Ke-ming |
| Abstract: | Various absorber of two-dimension periodic is composed of metal base and coating of lossy dielectric.The thickness of lossy dielectric and permittivity and permeability are the main factors to affect the electromagnetic scattering of absorber,hence it is valuable to analyze those parameters which can affect the electromagnetic scattering of absorber.According to the character of two-dimension periodic of absorber,the effect of dielectric parameter to the scattering of double dihedrals of coding conduct was analyzed instead of analyzing the whole absorber.Examples of computation of the scattering of double dihedrals of coding conduct which can be changed according to dielectric parameter were illustrated by using the moments method.Furthermore,RCS of absorber was computed by using the moments method and technology of antenna array when the thickness of dielectric is the most appropriate. |
| Keywords: | Moment method Radar Cross Section(RCS) Electromagnetic scattering Scattering of lossy dielectric |
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