Design and Analysis of UHF Micropower CMOS DTMOST Rectifiers

Author

Teh, Ying-Khai ; Mohd-Yasin, Faisal ; Choong, Florence ; Reaz, Mamun Ibne ; Kordesch, Albert V.

Author_Institution

Fac. of Eng., Multimedia Univ., Cyberjaya

Volume

56

Issue

2

fYear

2009

Firstpage

122

Lastpage

126

Abstract

Design and analysis of ultrahigh-frequency (UHF) micropower rectifiers based on a diode-connected dynamic threshold MOSFET (DTMOST) is discussed. An analytical design model for DTMOST rectifiers is derived based on curve-fitted diode equation parameters. Several DTMOST six-stage charge-pump rectifiers were designed and fabricated using a CMOS 0.18-mum process with deep n-well isolation. Measured results verified the design model with average accuracy of 10.85% for an input power level between -4 and 0 dBm. At the same time, three other rectifiers based on various types of transistors were fabricated on the same chip. The measured results are compared with a Schottky diode solution.

Keywords

CMOS integrated circuits; Schottky diodes; UHF field effect transistors; charge pump circuits; curve fitting; power MOSFET; rectifiers; DTMOST six-stage charge-pump rectifiers; Schottky diode solution; UHF micropower CMOS DTMOST rectifiers; curve-fitted diode equation parameters; deep n-well isolation; diode-connected dynamic threshold MOSFET; ultrahigh-frequency micropower rectifiers; CMOS analog circuits; integrated circuit modeling; rectifiers; ultrahigh-frequency (UHF) integrated circuits;

fLanguage

English

Journal_Title

Circuits and Systems II: Express Briefs, IEEE Transactions on

Publisher

ieee

ISSN

1549-7747

Type

jour

DOI

10.1109/TCSII.2008.2010190

Filename

4785495