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)
Divisions
fac_eng
Funders
IF071-2020,RK002-2021
Publication Title
IEEE Transactions on Very Large Scale Integration (VLSI) Systems
Volume
30
Issue
10
Publisher
Institute of Electrical and Electronics Engineers
Publisher Location
445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA