Design and Analysis of UHF Micropower CMOS DTMOST Rectifiers

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Teh, Ying-Khai
Mohd-Yasin, Faisal
Choong, Florence
Reaz, Mamun Ibne
Kordesch, Albert V
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2009
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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.

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IEEE Transactions on Circuits and Systems. Part 2: Express Briefs

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56

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2

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© 2009 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.

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Electrical and Electronic Engineering not elsewhere classified

Electrical and Electronic Engineering

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