The YFGC025WWD from Quectel is a GPS/GNSS Antenna with Frequency 1559 to 1606 MHz, Gain 1.9 to 3.6 dBi (Peak), Efficiency 59.1 to 78.9%, Impedance 50 Ohms, Axial Ratio 8.09 to 14.27 dB. Tags: PCB, Ceramic, Patch, Embedded. More details for YFGC025WWD can be seen below.