A-20-dBm sensitivity RF energy-harvesting rectifier front end using a transformer IMN

Lian, Wen Xun and Ramiah, Harikrishnan and Chong, Gabriel and Churchill, Kishore Kumar Pakkirisami and Lai, Nai Shyan and Chen, Yong and Mak, Pui-In and Martins, Rui P. (2022) A-20-dBm sensitivity RF energy-harvesting rectifier front end using a transformer IMN. IEEE Transactions on Very Large Scale Integration (VLSI) Systems, 30 (11). pp. 1808-1812. ISSN 1063-8210, DOI https://doi.org/10.1109/TVLSI.2022.3207158.

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This article describes a fully integrated CMOS radio frequency energy-harvesting (RFEH) front end. It features an on-chip stacked step-up transformer integrated with a cross-coupled differential drive (CCDD) rectifier to enhance the input sensitivity. The transformer also serves as an on-chip balun for the CCDD rectifier. The CCDD rectifier innovates a gate-biasing technique and realizes coupling capacitors at the end of each stage to increase the subsequent stage biasing. Here, our RFEH front end operating at 900 MHz achieves an improved sensitivity of -20 and -19.2 dBm at the 1-V output for no-load and a 1-M Omega load, respectively.

Item Type: Article
Funders: Core Research for Evolutional Science and Technology (CREST), RU Grant-Fakulti Program [GPF056B-2020] [T05C2-19] [PV026-2020]
Uncontrolled Keywords: Cross-coupled differential drive (CCDD); Impedance matching network (IMN); Radio frequency energy harvesting (RFEH)
Subjects: T Technology > TK Electrical engineering. Electronics Nuclear engineering
Divisions: Faculty of Engineering
Depositing User: Ms. Juhaida Abd Rahim
Date Deposited: 25 Sep 2023 07:22
Last Modified: 25 Sep 2023 07:22
URI: http://eprints.um.edu.my/id/eprint/40882

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