DocumentCode
1775704
Title
A novel method of carrier suppression for UHF RFID readers
Author
Wu Xi ; Yang Qing ; Zhang Bingbing ; Zeng Xianghua ; Zheng Liming ; Li Jiancheng ; Zhang Jinyu
Author_Institution
Coll. of Electron. Sci. & Eng., Nat. Univ. of Defense Technol., Changsha, China
fYear
2014
fDate
26-29 July 2014
Firstpage
738
Lastpage
740
Abstract
The carrier leakage is one of the major factor that limits the performance of the UHF RFID reader. Compared to conventional method which uses vector modulator, this paper presents a passive carrier suppression method achieving low noise. Through experiments, the implemented carrier suppression circuit exhibits 40dB with transmission power of 28dBm; As a result, the sensitivity of reader improved 14dB when the BER of 10-5. The proposed method is successfully applied to the design of the UHF RFID reader.
Keywords
radiofrequency identification; UHF RFID readers; carrier leakage; passive carrier suppression method; Directional couplers; Dynamic range; Radiofrequency identification; Receivers; Reflector antennas; Sensitivity; Carrier suppression; UHF RFID; sensitivity;
fLanguage
English
Publisher
ieee
Conference_Titel
Antennas and Propagation (APCAP), 2014 3rd Asia-Pacific Conference on
Conference_Location
Harbin
Print_ISBN
978-1-4799-4355-5
Type
conf
DOI
10.1109/APCAP.2014.6992603
Filename
6992603
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