Remote radar circuit system with grid voltage quick start protection circuit

The utility model relates to a long-distance radar circuit system with a grid voltage quick start protection circuit, which comprises a microwave transmit-receive assembly, the microwave transmit-receive assembly is provided with a receiving end and a transmitting end, the receiving end and the transmitting end are connected with a rear-end device, and the rear-end device is connected with a logic protection circuit. The logic protection circuit comprises a switch assembly, a triode and a voltage conversion device, the switch assembly is connected with the rear-end device, a negative electrode of the voltage conversion device is connected to an emitting electrode of the triode, the negative electrode of the voltage conversion device is connected with grid tuning of the power amplifier and the low-noise amplifier, a base electrode of the triode is grounded through a resistor, and the switch assembly is an MOS tube. The grid electrode of the MOS tube is connected with the collector electrode of the triode, the