物理学报Issue(10)：115-120,6.DOI:10.7498/aps.62.104102
基于电磁谐振的极化无关透射吸收超材料吸波体*
A polarization-independent transmission absorption metamaterial absorber based on electromagnetic resonance∗
摘要
Abstract
In this paper, we simulate and experimentally validate a polarization-independent transmission absorption metamaterial absorber based on electromagnetic resonance. The metamaterial absorber can absorb the high-frequency electromagnetic wave, and the low-frequency wave can transmit through the absorber. The tested results indicate that the metamaterial absorber can achieve a narrow bandwidth high absorption with a peak absorption of 83.6% at 6.77 GHz, and a full width at half maximum (FWHM) of 4.3%. To further broaden the absorption bandwidth of the resonant metamaterial absorber, we place two absorbers with different working frequencies together for its low-frequency transmitted characteristic. The measured data show that the composite metamaterial absorber can increase the FWHM to 10.9%, and can enhance the absorption slightly. The metamaterial absorber has some advantages, such as simple design, strong practicability, and important application foreground.关键词
极化无关/透射吸收/超材料吸波体Key words
polarization-independent/transmission absorption/metamaterial absorber引用本文复制引用
鲁磊,屈绍波†,马华,余斐,夏颂,徐卓,柏鹏..基于电磁谐振的极化无关透射吸收超材料吸波体*[J].物理学报,2013,(10):115-120,6.基金项目
国家自然科学基金(批准号:61271109)资助的课题.@@@@Project supported by the National Natural Science Foundation of China (Grant No.61271109) （批准号:61271109）
