Sistemas de medida de antenas inteligentes para UMTS

In the last years, the continuous increase in the number of users in the mobile communication systems has led to the need to increase their capacity. With the arrival of UMTS , and the appearance of new Third Generation Services that require high bit rates, it is essential to think about techniques that were able to increase the capacity. One suitable solution is the use of smart antennas in the B Nodes of the UMTS net. This technology will allow not only a capacity increase, but also an improvement in the signal quality, a range increase, a security level improvement and even the appearance of new services based on the special characteristics of these antennas. Thus, it is necessary to have procedures and tools to measure smart antennas, inorder to integrate them with the B Nodes of the UMTS net.