Radio frequency transceiver device

A radio frequency transceiver device comprising:

• an antenna unit configured to receive a first radio frequency signal or transmit a second radio frequency signal;
• a first matching circuit coupled to the antenna unit;
• a receiver circuit coupled to the first matching circuit and comprising a mixer unit;
• a second matching circuit coupled to the antenna unit;
• a transmitter circuit coupled to the second matching circuit, wherein the second matching circuit and the transmitter circuit form a signal transmission channel configured to transmit the second radio frequency signal;
• a third matching circuit coupled to the antenna unit;
• and
• an auxiliary circuit comprising a first transformer coil and a second transformer coil, wherein the first transformer coil is coupled to the third matching circuit, and the second transformer coil is coupled to the mixer unit;
• wherein the first matching circuit and the receiver circuit are configured to form a first signal reception channel;
• when the first radio frequency signal is a high gain radio frequency signal, the first signal reception channel receives and processes the first radio frequency signal and then transmits the first radio frequency signal to the mixer unit;
• the third matching circuit and the auxiliary circuit are configured to form a second signal reception channel:
• when the first radio frequency signal is a middle-low gain radio frequency signal, the second signal reception channel receives the first radio frequency signal and then transmits the first radio frequency signal to the mixer unit.