摘要
A wide-band polarization-insensitive and wide-angle metamaterial absorber based on loaded magnetic resonators is presented.The unit cell of this absorber consists of a magnetic resonator loaded with lumped resistances,a dielectric substrate and a back metal film.Theoretical and simulated results show that this absorber has a wide-band strong absorption for the incident wave from 3.87 GHz to 21.09 GHz.Simulated absorbance values under loading and unloading conditions indicate that electrocircuit's resonances are more stable than electromagnetic resonances and thus can be used to realize wide-band absorption.Simulated absorbance values under different polarization angles and different angles of incidence indicate that this absorber is polarization-insensitive and wide-angle.It may have potential applications in military fields.
作者
GU Chao
QU Shao-Bo
PEI Zhi-Bin
MA Hua
XU Zhuo
BAI Peng
PENG Wei-Dong
LIN Bao-Qin
顾超;屈绍波;裴志斌;马华;徐卓;柏鹏;彭卫东;林宝勤(College of Science,Air Force Engineering University,Xi'an 710051;Key Laboratory of Electronic Materials Research of Ministry of Education,Xi'an Jiaotong University,Xi'an 710049;Research Center of Synthetic Electronic Information System and Electronic countermeasure,Air Force Engineering University,Xi'an 710051)
基金
by the National Natural Science Foundation of China under Grant Nos 50632030,60871027,60901029 and 61071058
the National Basic Research Program of China under Grant No 2009CB623306
the National Natural Science Foundation of Shaanxi Province under Grant No SJ08F01.
