we are evaluating the integration of a GNSS antenna like Sinica SR4G008 inside our vehicle tracker.
PCB dimensions would be like 80x80mm and the antenna will be placed in the middle of one PCB edge.
Under the PCB, at 5 mm distance, there will be the metallic part of the enclosure which has more or less the same dimensions of the PCB. It will be present also in the area under the antenna. Can this affect antenna performance?
As ancillary question, is this antenna proved working with GNSS receivers integrated into LTE modules without additional LNA?