Ubiquiti has you covered with the next generation of 2x2 MIMO sector antennas from Ubiquiti Networks, the airMAX® AM-5AC21-60 ac Sector Antennas, feature significant advances in scalability, noise isolation, and beam performance to complement the Rocket™5ac radios. They are also compatible with RocketM5 models; however, optimal performance requires the Rocket5ac. 
Breakthrough Performance the airMAX AM-5AC21-60,ac Sector Antennas are highly resistant to noise interference in co-location deployments. The innovative deflector design, together with the reduced sidelobes and backlobes, reject interference from other transmitters in the area – potentially on the same tower. Improved Signal-to-Noise Ratio (S/N or SNR) allows a higher-order modulation to be used, for example, 256QAM rather than 16QAM. This increases the number of bits per second for a fixed bandwidth (or data rate). Due to innovative design, the Ubiquiti airMAX ac Sector Antennas provide higher gain and superior beam performance for high-capacity, multipoint networks.