The YFGC040WWA from Quectel is a GPS/GNSS Antenna with Frequency 1559 to 1606 MHz, Gain 3.5 to 4.3 dBi (Peak), Efficiency 66.5 to 72.6%, Impedance 50 Ohms, Axial Ratio 2.12 to 2.34 dB. Tags: PCB, Ceramic, Patch, Embedded. More details for YFGC040WWA can be seen below.