The OA4-5.5V/9515 from Cobham Antenna Systems is a Base Station Antenna with Frequency 5.15 to 5.85 GHz, Frequency Band 1 5.15 to 5.85 GHz, Gain 5 dBi, Vertical Beamwidth 38 Degree, Horizontal Beamwidth 360 Degree. More details for OA4-5.5V/9515 can be seen below.