无线电工程2017，Vol.47Issue(2)：61-64,4.DOI:10.3969/j.issn.1003-3106.2017.02.15
基于阿基米德螺旋结构的三频超材料吸收器
Triple-band Metamaterial Absorber Based on Archimedes Spiral Curves
摘要
Abstract
Metamaterial absorber (MA) has great potential application value in thermal radiation detection, thermal imaging and biochemical substance detection.The paper presents a triple-band MA, which is composed of periodically arranged Archimedes spiral curves array and a metal ground separated by a dielectric spacer.Based on the self-similarity characteristic of the frequency-independent structure, three absorption peaks can be observed at 4.35 GHz, 6.28 GHz and 8.76 GHz with absorptivity of 97.3%, 97.3% and 97.2% respectively.Due to its rotationally symmetric pattern, the presented MA is insensitive to the polarization of the incident waves and can perform well at a wide range of incident angles.The effective medium theory has been employed to investigate the underlying physical mechanism of the fractal MA, and good agreements between simulation and experimental results have been achieved.关键词
超材料/吸收器/阿基米德螺旋/三频Key words
metamaterials/absorber/archimedes spiral/triple-band分类
信息技术与安全科学引用本文复制引用
马岩冰,郑文泉,张宇环,邵晓龙,吴楠..基于阿基米德螺旋结构的三频超材料吸收器[J].无线电工程,2017,47(2):61-64,4.基金项目
国家高技术研究发展计划("863"计划)基金资助项目(2015AA034102) （"863"计划）
国家自然科学基金资助项目(61371053,61271038,51472042). （61371053,61271038,51472042）
