Wireless transceiver device

A wireless transceiver device, comprising:

• an antenna unit for receiving a first RF signal or transmitting a second RF signal;
• a first matching unit, electrically connected to the antenna unit;
• a receiving circuit, electrically connected to the first matching unit, wherein the first matching unit and the receiving circuit form a first signal receiving channel for receiving the first RF signal when the first RF signal is a high/low gain RF signal;
• a second matching unit, electrically connected to the antenna unit;
• a transmitting circuit, electrically connected to the second matching unit, wherein the second matching unit and the transmitting circuit form a signal transmitting channel for transmitting the second RF signal;
• and
• a bypass coupling circuit, electrically connected to the receiving circuit and the second matching unit, wherein the second matching unit, the bypass coupling circuit, and the receiving circuit form a second signal receiving channel for receiving the first RF signal when the first RF signal is a middle gain RF signal;
• wherein the receiving circuit further comprises:
• a low noise amplifier (LNA), electrically connected to the first matching unit to receive the high/low gain RF signal matched by the first matching unit and perform signal amplification;
• and
• a mixer, electrically connected to the LNA, so that the mixer receives the high/low gain RF signal, down-converts the high/low gain RF signal, and transmits the down-converted high/low gain RF signal to a back end for processing, wherein
• the bypass coupling circuit is electrically connected to the mixer, so that the mixer is configured to receive the middle gain RF signal, down-convert the middle gain RF signal, and transmit the down-converted middle gain RF signal to the back end for processing.

A wireless transceiver device, comprising:

• an antenna unit for receiving a first RF signal or transmitting a second RF signal;
• a first matching unit, electrically connected to the antenna unit;
• a receiving circuit, electrically connected to the first matching unit, wherein the first matching unit and the receiving circuit form a first signal receiving channel for receiving the first RF signal when the first RF signal is a high/low gain RF signal;
• a second matching unit, electrically connected to the antenna unit;
• a transmitting circuit, electrically connected to the second matching unit, wherein the second matching unit and the transmitting circuit form a signal transmitting channel for transmitting the second RF signal;
• a third matching unit, electrically connected to the antenna unit;
• and
• a bypass coupling circuit, electrically connected to the third matching unit and the receiving circuit, wherein the third matching unit, the bypass coupling circuit, and the receiving circuit form a second signal receiving channel for receiving the first RF signal when the first RF signal is a middle gain RF signal.