The AN2051-245 is an antenna manufactured by Rainsun with an SMD, 2x5.1mm package and is Rohs compliant. It is primarily designed to be a high-performance antenna and is suitable for a wide variety of applications in 2.4GHz wireless terminal products. This antenna provides excellent reception, transmitting, and receiving performance even in challenging environments. Its structure is made from two layers of gold-plated PCB and features an integrated chip with built-in matching components. It provides a strong and stable signal and can withstand the rigors of harsh environments. This antenna is also designed with low energy consumption which makes it an ideal choice for battery operated products.