This work presents the goals, methods and results of a collinear antenna array to be applied in beamforming circuits of switched beam smart antenna systems that operateat a central frequency of 5 GHz. It consists in the design of log-periodic antennas formed by linear dipoles and, by using them, in anantenna array capable of directing its radiation beam by optimization with high gain in na angular coverage wide range depending on the complex excitations of its antennas. In order to verify the angular coverage operating capacity and directivity of the array radiation characteristics, optimizations are performed by the PSO method in the simulated array. From theses optimizations, complex excitations sets that are capable of directing their beam in an improved way to pre-selected targets are obtained. To test the antenna array, it is used a power divider and transmition lines with insertion loss characteristics that are equivalenttothevaluesobtainedbytheoptimization. Thesetransmissionlines are used as phaseshiftersto excite the antenna array accordingly. The results of the optimized radiation responses of the simulated antenna array are compared with their measured values.