Achieving a multi-band metamaterial perfect absorber via a hexagonal ring dielectric resonator*
Li Li-Yang, Wang Jun†, Du Hong-Liang, Wang Jia-Fu, Qu Shao-Bo‡
       
Electric distributions for modes under different boundary conditions. (a) Six sides are magnetic walls. From left to right, the three panels show the distributions of TE δ 11, TE δ 31, and TE δ 51. (b) One side wall is an electric wall, and the others are magnetic walls.