Abstract: The present disclosure is directed to a sub-reflector assembly for a point-to-point antenna. The sub-reflector assembly includes a main body configured to hold an antenna, a sub-reflector supported by a plurality of support members extending axially outwardly from the main body, and an adjustment mechanism coupled to the sub-reflector and at least two of the support members, the adjustment mechanism configured to adjust the position of the sub-reflector relative to the main body to steer an antenna beam from the antenna. Related antenna assemblies are also described herein.