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理论和实验已经表明 ,金属开口谐振环 (splitringresonators,简称SRR)可以实现材料的有效磁导率 μeff在某一频率范围内为负 .采用波导法实验研究了不同几何尺寸的六边形SRR在X波段微波作用下的近邻相互作用 .实验发现 ,相同尺寸的六边形SRR周期性排列而成的一维负磁导率材料存在一个谐振频率 ;当缺陷谐振环引入一维负磁导率材料时 ,主谐振频率和缺陷环谐振频率同时发生移动 ;主谐振频率和缺陷环谐振频率的移动量随缺陷与双环谐振频率之差的增加而减小 ,当缺陷环谐振频率与双环谐振频率接近时 ,环间的相互作用增强 ,频率的移动量增大 .
Theoretical and experimental studies have shown that the effective permeability μeff of metal split ring resonators (SRRs) can be negative within a certain frequency range. By using the waveguide method, the hexagonal SRRs with different geometries are studied in X It is found that one-dimensional negative permeability materials with one-dimensional periodic arrangement of hexagonal SRRs of the same size have a resonance frequency. When a one-dimensional negative permeability material is introduced into the defective ring, , The main resonance frequency and the resonance frequency of the defect ring move at the same time. The movement distance of the main resonance frequency and the resonance frequency of the defect ring decreases with the difference between the defect and the double ring resonance frequency. When the resonance frequency of the defect ring and the double ring resonance frequency are close, Interaction between the rings increases, increasing the frequency of movement.