| 摘要 |
The present invention relates to the field of wireless communications, and specifically to an NFC active communication interface having high transmit power. The NFC active communication interface consists of an NFC communication antenna, a communication antenna matching circuit, an RF mode switch, an NFC transceiver, an RF antenna switch, an energy sending antenna, and an energy sending antenna matching circuit. An antenna interface of the NFC transceiver is connected to a common interface of the RF mode switch. A first radio frequency interface of the RF mode switch is connected to one end of the communications antenna matching circuit. The other end of the communication antenna matching circuit is connected to one end of the RF antenna switch. The other end of the RF antenna switch is connected to the NFC communication antenna. A second radio frequency interface of the RF mode switch is connected to the energy sending antenna by means of the energy sending antenna matching circuit. The present invention has the advantages: the present invention can greatly improve the radio frequency transmit power of the NFC active communication interface, and a large amount of electric energy is provided to an NFC device communicating with the NFC active communication interface. The additional electric energy allows the NFC device to provide more functions, higher performance and better user experience. |
