Implementation of threshold crossing algorithm for beamforming controller system

Telecommunication is always experiencing fast development, both in terms of technology also the number of users. However, it is also followed by increasing of capacity demand, but the available frequency spectrum is also limited. To resolve these problems, a smart antenna using beamforming system has been developed. Smart antenna system has two types, there are switched beam and adaptive array. Beam switch system has been developed because simpler in its implementation and more economical than the adaptive array system. Unlike the adaptive array systems, beam switch system consists of some radiating elements, beamforming network, and RF switches while adaptive array system requires components and signal processing which is more complicated. This research is focusing on the implementation of threshold crossing algorithms for the beamforming control system. Threshold crossing algorithm will compare the analog voltage received by the antenna to the threshold voltage. The result of this programming is shown that the microcontroller is able to calculate the threshold voltage automatically and compare the input value with the threshold value.