可调谐超材料吸波体的研究现状和发展趋势

摘要

超材料因其完美的吸波特性成为近些年来吸波材料的研究热点,但常规的超材料吸波体为被动式吸波,具有一旦制备成型,其吸波特性便无法改变的缺点,因此可调谐超材料吸波体逐渐成为主要研究方向之一.根据当前国内外可调谐超材料吸波体的研究情况,分类介绍了几种调谐方式,重点阐述了其模型结构和调控机理,并归纳了吸波特性曲线的变化趋势,以及与影响因素之间的关系,最后对全文进行总结,对可调谐超材料的发展趋势进行展望,并说明可调谐超材料吸波体对智能隐身的重要作用.%Due to the capability of perfect absorption,metamaterial becomes a hot research topic of wave absorbing materials in recent years.However,conventional metamaterials absorber is passive absorption and has the disadvantage that the wave-absorbing property can't be changed once the molding is performed.Therefore,tunable metamaterials absorber gradually becomes one of the main research directions.Base on the research developments of tunable metamaterials absorber both of the domestic and foreign,several tunable methods were introduced in classification.Matrix structure and tunable mechanism was chief expounded.Furthermore,the tendency of change of wave absorbing characteristics curve and relationship between wave absorbing characteristics and effect factor were concluded.Finally,full text was summarized.The development trend of tunable metamaterials is prospected.The important faction of tunable metamaterials absorber was explained.