The ACAR0301-SW2 from Abracon LLC is a Antenna with Frequency 2.4 to 2.5 GHz / 5.15 to 5.82 GHz, Bandwidth 100 MHz/ 675 MHz, Gain -1.86 to -0.98 dBi, Operating Temperature -40 to 85 Degree C. Tags: Low Profile, Chip. More details for ACAR0301-SW2 can be seen below.