Dual-performance mode switchable radio frequency front end applied to satellite navigation

The invention relates to the technical field of radio frequency, in particular to a dual-performance mode switchable radio frequency front end applied to satellite navigation, which is characterized in that a switch passive driver is innovatively provided, the radio frequency front end can be switched into an LNA + passive driver + TIA architecture or a passive driver + TIA architecture through a control signal, the LNA + passive driver + TIA architecture can provide excellent noise performance, and the passive driver + TIA architecture can provide excellent noise performance. And the high-precision positioning of the GNSS system is facilitated, and the anti-interference performance of the radio frequency front end can be improved by the high-precision positioning method so as to cope with channel interference of other communication systems in a handheld device with a continuously reduced size. The circuit is high in utilization rate and can be used for development of a GNSS system radio frequency front-end c