Traditional antennas typically support only a single satellite system (such as GPS) and cannot fully utilize the resources of multiple systems like GLONASS, BDS, and Galileo. In complex environments (such as urban canyons and mountainous areas), the insufficient number of visible satellites in a single system can easily lead to positioning interruptions or degraded accuracy, failing to meet the demands of high-precision measurement. Traditional antennas have limited capability to suppress adjacent-frequency interference (such as LTE and Wi-Fi signals). Particularly in scenarios with complex electromagnetic environments, the deterioration in signal quality can result in fluctuations or loss of positioning data, thereby reducing operational efficiency.