A system design for the reader of microwave radio frequency identification

被引：0
|
作者：
Gu, Changzhan [1 ]
Fan, Zhiguang [1 ]
Zheng, Shaoyuan [1 ]
Huangfu, Jiangtao [1 ,2 ]
Ran, Lixin [1 ,2 ]
机构：
[1] Zhejiang Univ, Dept Informat & Elect Engn, Hangzhou 310027, Peoples R China
[2] Zhejiang Univ, Electromagnet Acad, Hangzhou 310027, Peoples R China
来源：
PIERS 2007 BEIJING: PROGRESS IN ELECTROMAGNETICS RESEARCH SYMPOSIUM, PTS I AND II, PROCEEDINGS | 2007年
关键词：
D O I：
暂无
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
RFID (Radio Frequency Identification) is now attracting many interests for its bright future in commercial and daily use. For the low-frequency (LF, typically 125KHz) and the high-frequency (HF, typically 13.6MHz) 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 [41 and enhance the demodulation sensitivity.
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收藏
页码：221 / +
页数：2
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