By analyzing dielectric cube with high permittivity based on dielectric resonator theory, a new approach to the analyzing of left-handed metamaterials simultaneously with negative permittivity and negative permeability is proposed. The approach indicates that dipoles with Lorentz-type resonance electromagnetic responses can realize negative effective parameters in their negative resonant region. The dipole originates from standing wave in high permittivity dielectric cube. By combining electric dipole with magnetic dipole together, the interaction between two kinds of dipoles will destroy the standing wave and realize a left-handed passband. Numerical simulations indicate that by combining dielectric cubes with same sizes but different permittivities together, the electric resonant frequency and the magnetic resonant frequency can be coincident. Finally, experiments are carried out to verify the feasibility of all-dielectric left-handed metamaterial constructed by this means.%本文通过对高介电常数介质基丁介质谐振器理论进行分析，明确了利用高介电常数介质产，乍负介电常数或负磁导率的途径在于介质中产牛具有Lorentz谐振形式的电磁响应的电偶极于或磁偶极了，指出了这种偶极子的产牛来源于电磁波在介质中形成的驻波，而左手通带的形成正是由于电偶檄了和磁偶圾予之间的相互影响，破坏了驻波形成的条件所实现的．模拟结果表明，通过将尺寸相同，介电常数不同的介质进行组合，使二若电谐振和磁谐振的频率点重合从而实现芽子通带，最后利用高介电常数，低损耗的陶瓷进行样品制作并测试，测试结果证实了基于这一原珲实
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