中国物理B ›› 2011, Vol. 20 ›› Issue (1): 14101-014101.doi: 10.1088/1674-1056/20/1/014101
杨一鸣1, 王甲富1, 屈绍波2, 夏颂3, 王军3, 徐卓3, 柏鹏4, 李哲4
Yang Yi-Ming(杨一鸣)a),Wang Jia-Fu(王甲富)a),Xia Song(夏颂)b),Bai Peng(柏鹏)c), Li Zhe(李哲)c),Wang Jun(王军)b), Xu Zhuo(徐卓)b),and Qu Shao-Bo(屈绍波)a)b)†
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.
中图分类号: (Electromagnetic wave propagation; radiowave propagation)