%0 Journal Article 
%A Shahvarpour, Attieh
%A Álvarez Melcón , Alejandro
%A Caloz, Christophe
%T Analysis of the radiation properties of a point source on a uniaxially anisotropic meta-substrate and the application to a high-efficiency antenna
%D 2010
%U http://hdl.handle.net/10317/1581
%X The radiation efficiency of a point electric source
on a loss-less uniaxially anisotropic meta-substrate is computed
by the mixed potential integral equation technique. For this
purpose, the multilayered Green's functions of the structure
are derived from the spectral domain transmission line model
of the medium. The efficiency of the antenna is compared for
different permittivities and permeabilities of the meta-substrate
with fixed TE and TM wave numbers. It is shown that at
certain frequencies the radiation efficiency is enhanced as the
ratio of the permeability over permittivity is increased. This
suggests that an antenna on a mushroom type meta-substrate
or a meta-substrate which is constructed from the stacked split
ring resonators (SRR) in the plane of the substrate may exhibit
a high radiation efficiency close to the resonant frequencies of
the metallic loops, as compared to a conventional substrate.
%K Teoría de la Señal y las Comunicaciones
%K Radiation efficiency
%K Metamaterials
%K Spectral domain analysis
%K Anisotropic substrates
%K Radiación de eficiencia
%K Radiación de eficiencia
%K Metamateriales
%K Análisis espectral de dominio
%K Sustratos anisotrópicos
%~ GOEDOC, SUB GOETTINGEN