Passive/active base station antenna systems having passive reflector assemblies with an opening for an active antenna array

A base station antenna, comprising:

• a reflector assembly that extends in a longitudinal direction, the reflector assembly including:
• a main reflector that has a main reflecting surface and spaced-apart first and second integrated strips that are integral with and extend longitudinally from respective first and second opposed sides of the main reflector;
• a first auxiliary strip mounted on the first integrated strip, the first auxiliary strip comprising a dielectric material and having a first forwardly-facing radiating element mounting surface;
• and
• a second auxiliary strip mounted on the second integrated strip, the second auxiliary strip comprising a dielectric material and having a second forwardly-facing radiating element mounting surface.