TY - JOUR A1 - Shahvarpour, Attieh AU - Álvarez Melcón , Alejandro AU - Caloz, Christophe T1 - Spectral transmission line analysis of a left-handed uniaxially anisotropic meta-substrate Y1 - 2010 UR - http://hdl.handle.net/10317/1582 AB - The TM spectral transmission line model of a grounded meta-substrate with uniaxially anisotropic properties, corresponding to a composite right/left-handed sub-wavelength mushroom-type structure, is computed. The dispersion relation is found by the transverse resonance technique. It is analyzed and compared with the particular case of an isotropic grounded slab. The study is limited to the left-handed region of the meta- substrate, which corresponds to the frequency band where the permittivity and permeability are negative and most dispersive. The work considers only TM modes, for which the effects of dispersion and anisotropy are most significant. The leaky-modes in the anisotropic left-handed meta-substrate are shown to exhibit a leakage factor which may be conveniently designed to very low values for super highly directive leaky-wave antennas. KW - Teoría de la Señal y las Comunicaciones KW - Metamaterials KW - Spectral domain analysis KW - Anisotropic substrates KW - Antena de fuga de ondas KW - Metamateriales KW - Análisis espectral de dominio KW - Sustratos anisotrópicos KW - Leaky wave antenna (LWA) LA - eng PB - Institute Electrical and Electronics Engineers (IEEE) ER -