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A Fully-Integrated Ambient RF Energy Harvesting System with 423-µW Output Power
Pakkirisami Churchill, Kishore Kumar1; Ramiah, Harikrishnan2; Chong, Gabriel3; Chen, Yong4; Mak, Pui In4; Martins, Rui P.4,5
2022-06-01
Source PublicationSensors
ISSN1424-8220
Volume22Issue:12
Abstract

This paper proposes a 2.4-GHz fully-integrated single-frequency multi-channel RF energy harvesting (RFEH) system with increased harvested power density. The RFEH can produce an output power of ~423-µW in harvesting ambient RF energy. The front-end consists of an on-chip impedance matching network with a stacked rectifier concurrently matched to a 50 Ω input source. The circuit mitigates the “dead-zone” by enhancing the pumping efficiency, achieved through the increase of V drivability of the proposed internal gate boosting 6-stage low-input voltage charge pump and the 5-stage shared-auxiliary-biasing ring-voltage-controlled-oscillator (VCO) integrated to improve the start-up. The RFEH system, simulated in 180-nm complementary metal–oxide–semiconductor (CMOS), occupies an active area of 1.02 mm. Post-layout simulations show a peak power conversion efficiency(PCE) of 21.15%, driving a 3.3-kΩ load at an input power of 0 dBm and sensitivity of −14.1 dBm corresponding to an output voltage, V of 1.25 V.

KeywordCharge Pump Clock Generator Cmos Dc-dc Rf Energy Harvesting (Rfeh) Rf-dc Ring-vco Shared-dynamic-biasing
DOI10.3390/s22124415
URLView the original
Indexed BySCIE
Language英語English
WOS Research AreaChemistry ; Engineering ; Instruments & Instrumentation
WOS SubjectChemistry, Analytical ; Engineering, Electrical & Electronic ; Instruments & Instrumentation
WOS IDWOS:000816677000001
Scopus ID2-s2.0-85132025496
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Citation statistics
Cited Times [WOS]:1   [WOS Record]     [Related Records in WOS]
Document TypeJournal article
CollectionTHE STATE KEY LABORATORY OF ANALOG AND MIXED-SIGNAL VLSI (UNIVERSITY OF MACAU)
INSTITUTE OF MICROELECTRONICS
DEPARTMENT OF ELECTRICAL AND COMPUTER ENGINEERING
Corresponding AuthorRamiah, Harikrishnan
Affiliation1.Department of Electrical Engineering, Faculty of Engineering, University of Malaya, Kuala Lumpur, 50603, Malaysia
2.Centre of Research Industry 4.0 (CRI 4.0), Faculty of Engineering, University of Malaya, Kuala Lumpur, 50603, Malaysia
3.Nexperia R&D Penang, Bayan Lepas, 11900, Malaysia
4.State-Key Laboratory of Analog and Mixed-Signal VLSI/IME, Department of Electrical and Computer Engineering, Faculty of Science and Technology, University of Macau, Macau, 999078, China
5.Instituto Superior Técnico, Universidade de Lisboa, Lisboa, 1099-085, Portugal
Recommended Citation
GB/T 7714
Pakkirisami Churchill, Kishore Kumar,Ramiah, Harikrishnan,Chong, Gabriel,et al. A Fully-Integrated Ambient RF Energy Harvesting System with 423-µW Output Power[J]. Sensors,2022,22(12).
APA Pakkirisami Churchill, Kishore Kumar,Ramiah, Harikrishnan,Chong, Gabriel,Chen, Yong,Mak, Pui In,&Martins, Rui P..(2022).A Fully-Integrated Ambient RF Energy Harvesting System with 423-µW Output Power.Sensors,22(12).
MLA Pakkirisami Churchill, Kishore Kumar,et al."A Fully-Integrated Ambient RF Energy Harvesting System with 423-µW Output Power".Sensors 22.12(2022).
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