A reconfigurable CMOS rectifier with 14-dB power dynamic range achieving > 36-dB/mm(2) FoM for RF-based hybrid energy harvesting

Document Type

Article

Publication Date

10-1-2022

Abstract

This brief presents a novel circuit architecture for a Dickson-based reconfigurable rectifier with wide power dynamic range (PDR). Besides, a novel figure of merit (FoM) concerning the reconfigurable rectifiers is formulated to provide a more comprehensive assessment of the rectifier's performance. The proposed reconfigurable design improves the operating range of the rectifier by adaptively switching between the six-stage configuration during low-power operation and the 12-stage configuration during high-power operation. Fabricated in 130-nm CMOS, the proposed reconfigurable rectifier measures a PDR of 14 dB with a peak power conversion efficiency (PCE) of 34.93% for 1-M Omega load operating at 900 MHz. Relative to the recently published reconfigurable rectifiers, our design records the highest FoM of 36.98 dB/mm(2), with minimum harvesting downtime.

Keywords

CMOS, Figure of merit (FoM), Power dynamic range (PDR), Radio frequency-based hybrid energy harvesting (RFHEH)

Publication Title

IEEE Transactions on Very Large Scale Integration (VLSI) Systems

Divisions

fac_eng

Funders

IF071-2020,RK002-2021

Volume

30

Issue

10

Publisher

Institute of Electrical and Electronics Engineers

Publisher Location

445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA

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