Efficiency of Antenna Array Tapering in Real Propagation Environment of Millimeter Wave System
01 January 2019
In real propagation conditions the angular spread of radio channel reshapes the effective antenna pattern and impacts the efficiency of tapering method in comparison to nominal antenna pattern. Simulation results obtained for 3GPP UMa and UMi street canyon indicate that for effective antenna pattern the first side-lobe suppression level (SLL) can drop to 16 dB in case of LOS and even to 2 dB in case of NLOS, in comparison to SLL of 20 dB for nominal antenna pattern.