High Efficiency RFID UHF Power Converter

Author

Shenghua, Zhou ; Zhichao, Yang ; Nanjian, Wu

Author_Institution

Inst. of Semicond., Chinese Acad. of Sci., Beijing

fYear

2006

fDate

14-17 Nov. 2006

Firstpage

1

Lastpage

3

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;

fLanguage

English

Publisher

ieee

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

Type

conf

DOI

10.1109/TENCON.2006.343794

Filename

4142469