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
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;
Conference_Titel :
Antennas and Propagation (APCAP), 2014 3rd Asia-Pacific Conference on
Conference_Location :
Harbin
Print_ISBN :
978-1-4799-4355-5
DOI :
10.1109/APCAP.2014.6992603
