The VJ5104W240GXCMT from Vishay is a Antenna with Frequency 2.45 GHz ±50 MHz, Bandwidth 180 MHz / 480 MHz, Gain -0.8 to 2.1 dBi, Operating Temperature -40 to 85 Degree C. Tags: Chip, Ceramic, PCB, Low Profile. More details for VJ5104W240GXCMT can be seen below.