| 摘要 |
The present invention provides a transceiver for a radio frequency identification (RFID) reader. The transceiver includes an RF front end, a transmitting component, a receiving component, a power divider and a micro control unit (MCU). The power divider has three terminals. The first terminal of the power divider is connected to the transmitting component. The second terminal of the power divider is connected to the receiving component. The third terminal is connected to the RF front end. Moreover, the MCU is connected to the transmitting component and the receiving component, and generates a transmitted signal and receives a retrieved data. According to the present invention, the transceiver further includes an RF switch, a matching circuit and a receiving circuit. |
| 主权项 |
1. A transceiver for a radio frequency identification (RFID) reader, comprising:
an RF front end, having an antenna and an RF filter connected to the antenna; a transmitting component, having a first matching circuit and a transmitting circuit connected to the first matching circuit; a receiving component, having a second matching circuit, a detecting circuit, an amplifier and an analog-to-digital (A/D) converter, wherein the detecting circuit is connected between the second matching circuit and an input terminal of the amplifier, and the A/D converter is connected to an output terminal of the amplifier; a power divider, having a first terminal connected to the first matching circuit of the transmitting component, a second terminal connected to the second matching circuit of the receiving component and a third terminal connected to the RF filter of the RF front end; and a micro control unit (MCU), connected to the transmitting component and the receiving component, generating a transmitted signal and receiving a retrieved data. |
