物理学报Issue(14)：1-7,7.DOI:10.7498/aps.64.144101
超材料谐振子间的电耦合谐振理论与实验研究∗
Theoretical and exp erimental study of the electric resonant coupling b etween two metamaterial resonators
摘要
Abstract
In this paper, we realize the electrically coupled resonances between two metamaterial resonators based on two metal split-ring resonators gap-to-gap placed. The theoretical analysis and numerical calculation of the microwave equivalent circuit of the electrically coupled metamaterial resonators are performed. The results show that there are two resonance frequencies produced by the two coupled metamaterial resonators. For the two resonance frequencies, one gradually shifts towards the lower frequency with the coupling strength increasing, while the other is fixed at the resonance frequency of the single metamaterial resonator. The measured and simulated results of the microwave transmission spectra show that the two resonance peaks move respectively towards the lower and higher frequency with the coupling strength increasing. The analysis shows that the lower resonance frequency is mainly determined by the electrical coupling strength between the two metamaterial resonators, and the difference between the higher resonance frequency and the resonance frequency of the single resonator is mainly caused by the inevitable magnetic coupling between the two resonators. Moreover, the smaller the coupling space, the greater the influence of magnetic coupling is. The proposed dual resonance property and its tunability based on the electromagnetic coupling between the two metamaterial resonators greatly enhance the scopes of the design and application for metamaterials.关键词
超材料谐振子/耦合谐振/微波等效电路/电磁波Key words
metamaterial resonators/coupling resonance/microwave equivalent circuit/electromagnetic wave引用本文复制引用
梁浩,李剑生,郭云胜..超材料谐振子间的电耦合谐振理论与实验研究∗[J].物理学报,2015,(14):1-7,7.基金项目
内蒙古自然科学基金(批准号:2015MS0107)资助的课题.@@@@* Project supported by the Natural Science Foundation of Inner Mongolia, China (Grant No.2015MS0107) （批准号:2015MS0107）
