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Waveguide characteristics for arbitrary permittivity and permeability including for metamaterials

机译:任意介电常数和磁导率的波导特性,包括超材料

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We characterize slab and cylindrical waveguides with a dielectric core and a metamaterial cladding (metamaterial-dielectric guide). We use the lossy Drude model to describe the permittivity of the metama-terial and a lossy Lorentz-like model for the permeability. We identify the possible modes and examine various related quantities, such as dispersion and attenuation, for metamaterial-dielectric waveguides. We find that at certain frequencies the modes of the metamaterial-dielectric guides differ from metal-dielectric or dielectric-dielectric guides. Our results also point to the possibility of having a metamaterial-dielectrie waveguide with lower loss than a metal-dielectric waveguide.
机译:我们用介质芯和超材料包层(超材料-电介质导管)来表征平板和圆柱状波导。我们使用有损的Drude模型来描述材料的介电常数和有损Lorentz式的渗透率模型。我们确定了超材料介电波导的可能模式,并研究了各种相关量,例如色散和衰减。我们发现,在某些频率下,超材料介电波导的模式不同于金属介电或介电介质波导。我们的结果还指出了具有比金属介电波导损耗低的超材料介电波导的可能性。

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