Patent ID: 8649740

Claim:
A wireless transceiver apparatus, comprising: a signal transmitting circuit, comprising a first output port utilized for outputting a first transmission signal in a transmission mode; a circuit unit, coupled to the first output port of the signal transmitting circuit; and a signal receiving circuit, comprising a first receiving port utilized for receiving a first wireless communication signal in a reception mode; wherein the first output port is coupled to the first receiving port at a first node, and the circuit unit forms a frequency resonance mode in the reception mode, wherein the signal transmitting circuit converts a differential transmission signal pair into the first transmission signal in the transmission mode; the signal transmitting circuit comprises: a balun, comprising two input ports and an output port, the balun receiving the differential transmission signal pair via the two input ports, converting the differential transmission signal pair into the first transmission signal, and outputting the first transmission signal to an antenna module via the output port; and the circuit unit comprises a first end coupled to the balun and a second end coupled to a reference potential; and the circuit unit couples the first end and the second end in the reception mode, and disconnects the first end from the second end in the transmission mode.