Abstract
Based on a traditional split-ring resonator, a new type of eight-split-ring resonator structure, capable of providing negative permeability, is proposed in the paper. A three-dimension structure, consisting of three orthogonal eight-split-ring resonators, is a kind of three-dimension isotropic negative permeability structure. Simulation results show that in a three-dimensional space, the magnetic resonance behavior of three-dimensional structure is independent of electromagnetic wave direction and can give negative permeability at the frequency around 4.1GHz. Also, it is demonstrated that the orthogonal pattern in such three-dimension structure does not affect magnetic resonance behavior, facilitating structural analysis and material preparation. The paper provides a reference to the development of metamaterials towards multiple dimensions and directions.
Highlights
Left-handed material (LHM), of which the permittivity ε and permeability μ are simultaneously negative, have sparked a great deal of academic interest in recent years.[1]
Split-ring resonators(SRRs) structure is a micro-structure to generate negative permeability in LHMs,[5] SRRs play a critical role in LHM development, and the research on SRR-based negative permeability materials has become a heat among LHM researches
We analyzed and simulated the three-dimension isotropic negative permeability material made of eight-split-ring resonator, and the results are analyzed
Summary
Left-handed material (LHM), of which the permittivity ε and permeability μ are simultaneously negative, have sparked a great deal of academic interest in recent years.[1]. LHM cannot be well applied in practices only when it becomes isotropic.[9] Building on this, some scholars developed a new concept in which a number of SRR are used to build a three-dimension(3D) structure to get isotropy.[10,11,12,13] For example, Baena et al.,[14] with Universidad de Sevilla, used six SRRs to constitute an isotropic cubic structure; in Swiss, Philippe et al.[15] stated that two SRRs which are mutually orthogonal could deliver isotropy. We analyzed and simulated the three-dimension isotropic negative permeability material made of eight-split-ring resonator, and the results are analyzed
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