物理学报Issue(20)：455-460,6.DOI:10.7498/aps.62.208103
极薄宽角度平面超材料吸波体仿真与实验验证
Simulation and experiment demonstration of an ultra-thin wide-angle planar metamaterial absorber
摘要
Abstract
In this paper, we present the simulation and experimental validation of an ultra-thin planar metamaterial absorber, which is composed of Jerusalem crosses loaded by interdigital capacitors. By increasing the coupling capacitance between adjacent unit cells, we are able to significantly lower the operating frequency of the absorber. The measured results indicate that the metamaterial absorber achieves a peak absorption of 88.48%at 1.58 GHz. The total thickness and the unit cell size of the absorber are 2 mm and 11 mm, which are approximately 1/95 and 1/17 of the working wavelength, respectively. Additionally, the Jerusalem crosses and the metallic ground plane are connected by vias, which makes the metamaterial absorber achieve wide-angle absorption for both transverse electric and transverse magnetic polarizations electromagnetic wave. The absorptivity is still large even at the incident angle of 60◦, and the frequency of the absorption peak almost has no deviation, which makes the absorber more practical.关键词
极薄/宽角度/超材料吸波体Key words
ultra-thin/wide-angle/metamaterial absorber引用本文复制引用
鲁磊,屈绍波,苏兮,尚耀波,张介秋,柏鹏..极薄宽角度平面超材料吸波体仿真与实验验证[J].物理学报,2013,(20):455-460,6.基金项目
国家自然科学基金(批准号:11274389)和国家重点基础研究发展计划(批准号:2009CB623306)资助的课题.*Project supported by the National Natural Science Foundation of China (Grant No.11274389) and the National Basic Research Program of China (Grant No.2009CB623306) （批准号:11274389）
