All-dielectric left-handed metamaterial based on dielectric resonator:design,simulation and experiment  

作　　者：杨一鸣 王甲富 夏颂 柏鹏 李哲 王军 徐卓 屈绍波 

机构地区：[1]College of Science,Air Force Engineering University [2]Electronic Materials Research Laboratory,Key Laboratory of the Ministry of Education,Xi'an Jiaotong University [3]Synthetic Electronic Information System Research Department,Air Force Engineering University

出　　处：《Chinese Physics B》2011年第1期339-345,共7页中国物理B（英文版）

基　　金：Project supported in part by the National Natural Science Foundation of China(Grant Nos.50632030,60871027 and 10804130);in part by the National Basic Research Program of China(Grant No.2009CB613306);the Natural Science Foundation of Shaanxi Province,China(Grant No.SJ08F01)

摘　　要：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.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.

关 键 词：all-dielectric left-handed metamaterial dielectric resonator magnetic dipole electric dipole 

分 类 号：O441.6[理学—电磁学]