论文部分内容阅读
基于超材料的电磁谐振原理设计了一种三波段的超材料吸波体。该吸波体由电环谐振器和金属线组成。仿真结果显示,该谐振器有3个明显的吸收峰。在8.06GHz时,吸收率达到了94.02%;在4.76GHz时,吸收率为79.02%;而12.3GHz时,吸收率则是73%。在此基础上,利用一种结合了连续蚁群算法和差分进化算法的新型优化算法对该结构进行优化,使得该结构在4.9GHz和11.85GHz附近吸收率达到95%以上,可以灵活地实现特定频率处的高吸收率。
A three-band metamaterial absorber is designed based on the principle of electromagnetic resonance of metamaterials. The absorber consists of a ring resonator and a metal wire. Simulation results show that the resonator has three obvious absorption peaks. At 8.06GHz, the absorbance reached 94.02%; at 4.76GHz, the absorbance was 79.02%; and at 12.3GHz, the absorbance was 73%. On this basis, a new optimization algorithm combining continuous ant colony algorithm and differential evolution algorithm is used to optimize the structure, which makes the structure absorb more than 95% at 4.9GHz and 11.85GHz and can flexibly achieve specific High absorption at frequency.