patch antenna | 2J501 reference 2J501 nominal impedance frequency 50 Ohms AMPS 824-894MHz GSM 900, 1800 Mhz / PCN 1,9GHz UMTS 2,1GHz/ Bluetooth 2,4GHz VERTICAL 2.25 dBi <1,5/2 25W 2.5m RG174 FME Female 22mm x 126,5mm -40°C to +85°C polarization gain vswr power handling cable connector housing size working temperature http://www.2jantenna.co.uk