Title :
High Efficiency RFID UHF Power Converter
Author :
Shenghua, Zhou ; Zhichao, Yang ; Nanjian, Wu
Author_Institution :
Inst. of Semicond., Chinese Acad. of Sci., Beijing
Abstract :
The paper proposes a high efficiency RFID UHF power converter unit to overcome the low efficiency problem. This power converter is mainly composed of an RF-DC converter and a DC-DC converter. In order to overcome the low efficiency problem in low current consuming condition, a DC-DC converter is added to conventional single RF-DC converter rectifier to increase the rectifying efficiency of the RF-DC rectifier. The power converter is implemented in a 0.18 mum mixed signal, 1p6m CMOS technology. Simulation shows the power converter has an average improvement of 5% and can achieve efficiency as high as 30% with 900 MHz, 16 uW RF input power and 1.3 V, 3.6 uA DC output
Keywords :
DC-DC power convertors; UHF devices; radiofrequency identification; rectifiers; telecommunication power supplies; 0.18 micron; 1.3 V; 900 MHz; CMOS technology; DC-DC converter; RF-DC converter rectifier; RFID UHF power converter; CMOS technology; Circuits; DC-DC power converters; Passive RFID tags; Power supplies; Radio frequency; Radiofrequency identification; Rectifiers; Resonance; Voltage;
Conference_Titel :
TENCON 2006. 2006 IEEE Region 10 Conference
Conference_Location :
Hong Kong
Print_ISBN :
1-4244-0548-3
Electronic_ISBN :
1-4244-0549-1
DOI :
10.1109/TENCON.2006.343794
