激光与光电子学进展, 2017, 54 (12): 121602, 网络出版: 2017-12-11
基于超材料的宽频带吸波体 下载: 923次
Broadband Absorber Based on Metamaterials
摘要
基于超材料设计了一种新型宽频带吸波体。通过优化结构参数, 该吸波体的吸收率可以接近100%, 其吸收率为90%以上的吸收带宽达到18.5 GHz。仿真结果表明, 电磁波能量的损耗主要源于电磁超材料结构中的集总电阻。通过减小入射波反射, 增加吸波体的吸收率, 可达到宽频带吸收。
Abstract
Based on metamaterials, a new type of absorber is designed. After the optimization of structural parameters, the absorptivity of this absorber can approach 100%, and the absorption bandwidth is over 18.5 GHz when the absorptivity is larger than 90%. The simulation results show that the electromagnetic energy loss comes mainly from the lumped resistance in the electromagnetic metamaterials. With the decrease of the reflection of the incident wave, and the increase of the absorptivity of the absorber, the broadband absorption can be achieved.
周永光, 李民权, 潘旭. 基于超材料的宽频带吸波体[J]. 激光与光电子学进展, 2017, 54(12): 121602. Zhou Yongguang, Li Minquan, Pan Xu. Broadband Absorber Based on Metamaterials[J]. Laser & Optoelectronics Progress, 2017, 54(12): 121602.