T/R power amplifier switching circuit

The utility model discloses a T/R power amplifier switching circuit which comprises a gate circuit, an analog switching circuit and a power amplifier tube. The gate circuit is connected with the analog switch circuit; the analog switch circuit is connected with the grid electrode of the power amplifier tube; the gate circuit is an AND gate; the analog switch circuit comprises a voltage distribution network 1, a voltage distribution network 2, an analog switch module and a driving module. The analog switch module is respectively connected with the driving module, the voltage distribution network 1 and the voltage distribution network 2; one end of the gate circuit is normally connected with + 5V voltage, and the other end inputs a power amplifier switching signal. According to the utility model, the problem that the time for switching to a receiving mode after the power of the power amplifier is transmitted is too long is solved, the structure is simple, and a target within 100m can be detected under the condi