A System Design for the Reader of Microwave Radio Frequency Identiffication
RFID (Radio Frequency Identification) is now attracting many interests for its bright future in commercial and daily use. For the low-frequency (LF, typically 125 KHz) and the high-frequency (HF, typically 13.6 MHz) RFIDs, the Readers have already come into our daily life out of their matured technologies, while the ultra-high frequency (UHF) RFID Readers are still in the process for the reliability and functionality. This paper represents a systematic design of a UHF RFID reader. Received backscatter modulation waves (carrier wave frequency 915 MHz) are directly demodulated to baseband signals using the Zero IF technology. The reader is designed as a quadrature (I/Q) one, which can avoid null points of the received signals 4 and enhance the demodulation sensitivity.
Changzhan Gu Zhiguang Fan Shaoyuan Zheng Jiangtao Huangfu Lixin Ran
Department of Information and Electronic Engineering, Zhejiang University Hangzhou 310027, China Department of Information and Electronic Engineering, Zhejiang University Hangzhou 310027, China The
国际会议
Progress in Electromagnetics Research Symposium 2007(2007年电磁学研究新进展学术研讨会)(PIERS 2007)
北京
英文
276-279
2007-03-26（万方平台首次上网日期，不代表论文的发表时间）