Antenna Pattern Tracking Algorithm for Low Terahertz Communications

In this paper, a novel beam tracking algorithm is presented which is based on the change of the path loss. Due to the movement, the antenna gain is different as the angle of departure and angle of arrival changes. The proposed algorithm draws conclusions to the angular change from information about the measured gain difference. However, in order to provide a unique solution and directly get information about the angular direction of the movement, at least one additional antenna has to be added. By means of simulations, it is shown that the proposed algorithm works perfectly for line-of-sight and with some constraints also for non line-of-sight cases.