设计了一个由周期排列的金属电谐振环(the electric ring resonator,ERR)与短导线(FR-4基板上)组合而成的超材料吸波体.在某一频段,该超材料吸波体能同时产生强的电谐振与磁谐振.采用数值仿真方法,在8-12GHz波段计算了该超材料的S参数,并分析了其吸收率变化规律.单层超材料吸波体在9.27GHz处达到吸收峰,吸收率达97.9%.通过调节电谐振器中开口的长和宽,以及基板电磁参数,即可实现对谐振频率的调谐.利用等效电路法,对其吸收规律做了解释.
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