论文信息 - Mono-modal waveguides filled with a pair of parallel epsilon-negative (ENG) and mu-negative (MNG) metamaterial layers

Mono-modal waveguides filled with a pair of parallel epsilon-negative (ENG) and mu-negative (MNG) metamaterial layers

Here we analyze guided wave propagation in a parallel-plate waveguide filled with a pair of parallel lossless slabs; one possessing negative real permittivity but positive real permeability, and the other with negative real permeability and positive real permittivity, in the range of frequency of interest. It is shown that such a waveguide can support only a single propagating mode, essentially independent of the total thickness of this structure. Furthermore, this waveguide can still possess a propagating mode even when its thickness is very small. Field distribution and dispersion relations in such a mono-modal waveguide are obtained and discussed with physical insights and intuitive description for the mathematical findings.

A. Alu | N. Engheta

[1] V. Veselago. The Electrodynamics of Substances with Simultaneously Negative Values of ∊ and μ , 1968 .

[2] Nader Engheta,et al. Ideas for Potential Applications of Metamaterials with Negative Permittivity and Permeability , 2002 .

[3] R. Ziolkowski,et al. Wave propagation in media having negative permittivity and permeability. , 2001, Physical review. E, Statistical, nonlinear, and soft matter physics.

[4] Andrea Alù,et al. Radiation from a traveling‐wave current sheet at the interface between a conventional material and a metamaterial with negative permittivity and permeability , 2002 .

[5] Andrea Alù,et al. Pairing an epsilon-negative slab with a mu-negative slab: resonance, tunneling and transparency , 2003 .

[6] R. Shelby,et al. Experimental Verification of a Negative Index of Refraction , 2001, Science.

[7] D. R. Fredkin,et al. Effectively left-handed (negative index) composite material , 2002 .

[8] J. Pendry,et al. Magnetism from conductors and enhanced nonlinear phenomena , 1999 .

[9] N. Engheta,et al. An idea for thin subwavelength cavity resonators using metamaterials with negative permittivity and permeability , 2002, IEEE Antennas and Wireless Propagation Letters.