doctoralThesis
Aprimoramento de largura de banda de antena de microfita usando metasuperfície para aplicações em Wi-Fi 5 e 6
Fecha
2021-02-18Registro en:
ARAÚJO, Felipe Ferreira de. Aprimoramento de largura de banda de antena de microfita usando metasuperfície para aplicações em Wi-Fi 5 e 6. 2021. 84f. Tese (Doutorado em Engenharia Elétrica e de Computação) - Centro de Tecnologia, Universidade Federal do Rio Grande do Norte, Natal, 2021.
Autor
Araújo, Felipe Ferreira de
Resumen
The microstrip antennas are the object of study in several research fields due to their
advantages such as: small thickness, reduced weight and easy integration of electronic circuits.
Similarly, the evolution observed in the development of microstrip antennas has also been noted
in relation to the metasurfaces, a two-dimensional version of a metamaterial. Metasurfaces are
artificial materials that are not found in nature and have unconventional electromagnetic
characteristics, such as the index of refraction and coefficients of electrical permittivity and
negative magnetic permeability, in addition, they have the ability to be used in planar structures,
such as microstrip, without interfering with its traditional geometry. The objective of this work
is to increase the bandwidth of a microstrip antenna using a new metasurface model. This new
geometry is used to generate high order modes in the antenna and with rotation of the
metasurface in relation to the antenna we can overlap the modes and obtain a large bandwidth.
The proposed antenna presents bandwidth from 5.1 GHz to 8.0 GHz and can be applied in WiFi 5 and 6. Numerical results were chosen with the Ansys HFSS software. A prototype was
built and built for S11 and gains were made. The numerical and experimental results are in
agreement.