Side lobe level enhancement in an array antenna

A method for obtaining a desired beam pointing direction for an array antenna arrangement having at least one set of at least two sub-array antennas mounted such that a corresponding array antenna column is formed, where, for each polarization in each set of sub-array antennas:

• each sub-array antenna comprises a corresponding sub-array antenna port that is associated with a certain sub-array antenna beam pointing direction setting, and
• each sub-array antenna port is connected to a corresponding radio chain in a set of radio chains, where each set of radio chains is adapted to provide a digital antenna beam pointing direction setting, wherein the method comprises:
• providing a digital antenna beam pointing direction setting for each sub-array antenna port;
• and
• adjusting sub-array beam pointing direction settings associated with corresponding sub-array antenna ports such that a desired vertical side lobe level is obtained for the array antenna arrangement.