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

Choo, Alexander and Ramiah, Harikrishnan and Churchill, Kishore Kumar Pakkirisami and Chen, Yong and Mekhilef, Saad and Mak, Pui-In and Martins, Rui P. (2022) A reconfigurable CMOS rectifier with 14-dB power dynamic range achieving > 36-dB/mm(2) FoM for RF-based hybrid energy harvesting. IEEE Transactions on Very Large Scale Integration (VLSI) Systems, 30 (10). pp. 1533-1537. ISSN 1063-8210, DOI https://doi.org/10.1109/TVLSI.2022.3189697.

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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.

Item Type: Article
Funders: IF071-2020, RK002-2021
Uncontrolled Keywords: CMOS; Figure of merit (FoM); Power dynamic range (PDR); Radio frequency-based hybrid energy harvesting (RFHEH)
Subjects: T Technology > TK Electrical engineering. Electronics Nuclear engineering
Divisions: Faculty of Engineering
Depositing User: Ms. Juhaida Abd Rahim
Date Deposited: 14 Sep 2023 06:38
Last Modified: 14 Sep 2023 06:46
URI: http://eprints.um.edu.my/id/eprint/41223

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