The YFGA025E3DM from Quectel is a GPS/GNSS Antenna with Frequency 1559 to 1606 MHz, Gain -5.3 to 0.69 dBi (Peak), Efficiency 16.3 to 73.7%, Impedance 50 Ohms, Return Loss -29.2 to -3.2 dB. Tags: PCB, Ceramic, Patch, Embedded. More details for YFGA025E3DM can be seen below.