1. A smart card for authenticating a person holding the smart card, the smart card comprising: a substrate; a sensor module provided on the substrate, the sensor module including: a biometric sensor that detects biometric information from the person's body and coincidentally confirms whether the person holding the smart card is alive; a processor unit that is coupled to the biometric sensor and authenticates the person in response to the detected biometric information and coincidentally confirming the person holding the smart card is alive, generates an authentication signal representing an authentication result, and encrypts the authentication signal; and a memory that is coupled to the processor unit and stores biometric information of a specific individual associated with the smart card; a wireless transceiver module coupled to the processor unit, the wireless transceiver module comprising: a signal antenna that is coupled to the processor unit and wirelessly transmits the encrypted authentication signal received from the processor unit; and a power antenna that is coupled to a power circuit and receives a wirelessly-transmitted power signal; and the power circuit that is provided on the substrate and generates at least one supply voltage from the received power signal and provides the supply voltage to the sensor module.