All-dielectric left-handed metamaterial based on dielectric resonator: design, simulation and experiment |
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Authors: | Yang Yi-Ming Wang Jia-Fu Xia Song Bai Peng Li Zhe Wang Jun Xu Zhuo and Qu Shao-Bo |
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Affiliation: | College of Science, Air Force Engineering University, Xi'an 710051, China;College of Science, Air Force Engineering University, Xi'an 710051, China;Electronic Materials Research Laboratory, Key Laboratory of the Ministry of Education, Xi'an Jiaotong University, Xi'an 710049, China;Synthetic Electronic Information System Research Department, Air Force Engineering University, Xi'an 710051, China;Synthetic Electronic Information System Research Department, Air Force Engineering University, Xi'an 710051, China;Electronic Materials Research Laboratory, Key Laboratory of the Ministry of Education, Xi'an Jiaotong University, Xi'an 710049, China;Electronic Materials Research Laboratory, Key Laboratory of the Ministry of Education, Xi'an Jiaotong University, Xi'an 710049, China;College of Science, Air Force Engineering University, Xi'an 710051, China;Electronic Materials Research Laboratory, Key Laboratory of the Ministry of Education, Xi'an Jiaotong University, Xi'an 710049, China |
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Abstract: | Dipoles with Lorentz-type resonant electromagnetic responses can realise negative effective parameters in their negative resonant region. The electric dipole and magnetic dipole can realise, respectively, negative permittivity and negative permeability, so both the field distribution forms of electric and magnetic dipoles are fundamentals in designing left-handed metamaterial. Based on this principle, this paper studies the field distribution in high-permittivity dielectric materials. The field distributions at different resonant modes are analysed based on the dielectric resonator theory. The origination and influence factors of the electric and magnetic dipoles are confirmed. Numerical simulations indicate that by combining dielectric cubes with different sizes, the electric resonance frequency and magnetic resonance frequency can be superposed. Finally, experiments are carried out to verify the feasibility of all-dielectric left-handed metamaterial composed by this means. |
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Keywords: | all-dielectric left-handed metamaterial dielectric resonator magnetic dipole electric dipole |
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