The YFGC009WWB from Quectel is a GPS/GNSS Antenna with Frequency 1559 to 1606 MHz, Gain -0.9 to 2.1 dBi (Peak), Efficiency 42 to 68.1%, Impedance 50 Ohms, Axial Ratio 11.05 to 16.33 dB. Tags: PCB, Ceramic, Patch, Embedded. More details for YFGC009WWB can be seen below.