The PE51209 from Pasternack Enterprises Inc is a Antenna with Frequency 2.4 to 2.5 GHz, Gain 2.6 dB, Power 5 W, Operating Temperature -40 to 85 Degree C, Storage Temperature -40 to 85 Degree C. Tags: Embedded, PCB, Low profile. More details for PE51209 can be seen below.