Wireless network device and radar transmission method using the same

A wireless network device, configured for performing a radar transmission operation and a wireless network transmission operation, the wireless network device comprising:

• a signal processing circuit, comprising a signal generator for generating an output signal, wherein the output signal comprises a plurality of calibration chirps in a radar frame during the radar transmission operation;
• a transmitting circuit, configured to transmit the output signal;
• and
• a receiving circuit, configured to receive a signal corresponding to the output signal through a loop and to generate an input signal;
• wherein, the signal processing circuit further comprises a calibration circuit which sets the input signal corresponding to a reference frame as a reference frame signal, and compares the input signal with the reference frame signal and a plurality of expected parameters to adjust the signal generator and the calibration circuit,
• the signal generator is further configured to generate a plurality of measurement chirps of the radar frame, and the transmitting circuit is configured to convert the output signal including the plurality of measurement chirps into a wireless emitting signal, wherein the receiving circuit is configured to convert a wireless reflected signal corresponding to the wireless emitting signal into the input signal, so that the signal processing circuit generates a plurality of radar reflection information according to the input signal corresponding to the measurement chirps.