A Wide Band Absorbing Material Design Using Band-Pass Frequency Selective Surface

2017 International Symposium on Application of Materials Science and Energy Materials

材料科学;能源学

Xu, Yonggang^1 ; Xu, Qiang^1 ; Liu, Ting^2 ; Zheng, Dianliang^2 ; Zhou, Li^2

Shanghai Radio Equipment Research Institute, Shanghai, China^1

College of Aeronautical Engineering, Jilin Institute of Chemical Technology, Jilin, China^2

关键词: Absorbing characteristics;    Absorbing materials;    Absorbing properties;    Absorbing structure;    Frequency selective surface (FSS);    Guiding significances;    Low-frequency absorption;    Reflection characteristics;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/322/2/022029/pdf
DOI  :  10.1088/1757-899X/322/2/022029

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

Based on the high frequency advantage characteristics of the Fe based absorbing coating, a method for designing the structure of broadband absorbing structure by using frequency selective surface (FSS) is proposed. According to the transmission and reflection characteristic of the different size FSS structure, the frequency variation characteristic was simulated. Secondly, the genetic algorithm was used to optimize the high frequency broadband absorbing materials, including the single and double magnetic layer material. Finally, the absorbing characteristics in iron layer were analyzed as the band pass FSS structure was embedded, the results showed that the band-pass FSS had the influence on widening the absorbing frequency. As the FSS was set as the bottom layer, it was effective to achieve the good absorbing property in low frequency and the high frequency absorbing performance was not weakened, because the band-pass FSS led the low frequency absorption and the high frequency shielding effect. The results of this paper are of guiding significance for designing and manufacturing the broadband absorbing materials.