Estudo e implementação de vetores de antenas para aplicações Ultra WideBand (UWB).

Abstract

UltraWideband (UWB) s ystems are e mergent bec ause th ey offer new possibi lities to reach communication with high data rates and an ul tra wid e spectral band. To improve the UWB performance, s everal th eoretical studies demonstrates the interest to associate s pacetime (ST) coded multipleinput multipleoutput (MIMO) techniques. This stage presents the study and the conception of multiples antennas utilized for UWB applications. In other hand, for the ph ysical implementation, the multiples antennas proposed are constituted by circular disc monopole antenna. Two geometrical configurations are im plemented and characterized. The classics parameters of description of the antenn as, the specifics parameters of m ultiples antennas are introduced and utilized such as mutual coupling and the correlation coefficient between neighboring antennas.