A RF-DC rectifier with dual voltage polarity self-biasing for wireless sensor node application

A RF-DC rectifier with dual voltage polarity self-biasing for wireless sensor node application

This paper presents an improvement on the RF-DC rectifier with the self-bias diode-connected MOS transistors to achieve a wide input power range. The proposed design utilized a dual voltage polarity to bias the rectifying PMOS and NMOS with a positive and negative DC potential respectively. This bia...

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Bibliographic Details
Main Authors: Teo, Terence Boon Chiat, Venkadasamy, Navaneethan, Lim, Xian Yang, Nardi, Utomo, Liu, Ziming, Tan, Chong Boon, Seah, Bryan Yun Da, Sit, Ji-Jon, Siek, Liter
Other Authors: School of Electrical and Electronic Engineering
Format: Conference Paper
Language:English
Published: 2021
Subjects:
Engineering::Electrical and electronic engineering
CMOS RF Rectifier
Energy Harvesting
Online Access:https://hdl.handle.net/10356/152061
Description
Summary:This paper presents an improvement on the RF-DC rectifier with the self-bias diode-connected MOS transistors to achieve a wide input power range. The proposed design utilized a dual voltage polarity to bias the rectifying PMOS and NMOS with a positive and negative DC potential respectively. This biasing potential enables the gate of the transistor to be boosted above the output voltage or below the rectifier ground to minimize the leakage current. A proposed 3-stage rectifier design is simulated using a 55nm BCD technology and occupies an area of 0.064 mm 2 . The post-layout simulation results show a 75.3% power conversion efficiency (PCE) at -7dBm, -22.5dBm sensitivity and an input power range of 21.2dB when operating at the 900MHz input RF frequency with a 100k0 load.

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