A UHF RFID reader baseband for multi-protocol with universal transmitter

摘要

Radio Frequency Identification is a non-contact automatic bidirectional communication identification technology for identification or data exchange by the use of electromagnetic induction, radio waves or microwaves. RFID can be applied at different frequencies. So there are many kinds of protocols about RFID corresponding to its applications in different aspects. A typical RFID system consist three parts which are reader, tag and host computer. This work designs a baseband which can support multi-protocols in UHF, including a 8051 compatible microprocessor.