The work presented in this paper proposes a technique for bandwidth enhancement by using log periodic printed antennas arrays. To achieve this, an analysis rigorous method (Moment’s method) will be retained to validate the antennas array performances. For this, antennas arrays operating in C band with linear polarization has been studied. These last, present a good performances in adaptation and polarization. The radiating elements used are multi-layered type supplied through a slot in the groundplane. The presented simulation results confirm the validity of the proposed technique.