The 2450AT43B100 from Johanson Technology is a Antenna with Frequency 2.4 to 2.5 GHz, Gain -0.5 to 1.3 dBi, Power 2 W, Operating Temperature -40 to 105 Degree C, Storage Temperature -40 to 105 Degree C. Tags: Ceramic, Chip. More details for 2450AT43B100 can be seen below.