The YFGA018E3BM from Quectel is a GPS/GNSS Antenna with Frequency 1559 to 1606 MHz, Gain -7 to -0.3 dBi (Peak), Efficiency 8.4 to 51%, Impedance 50 Ohms, Return Loss -26.9 to -1.85 dB. Tags: PCB, Ceramic, Patch, Embedded. More details for YFGA018E3BM can be seen below.