PMP 450 3 GHz AP Antenna

Has anyone used a different antenna for the 3 GHz AP sector antenna for the PMP450?  The 3 dB beamwidth of the Cambium 3 GHz antenna is only 65 degrees, I was hoping for something 90 degrees or greater.  Any suggestions?

120 Degree

90 Degree

We have been using the 120 Degree Sector So far so Good.