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Characterizing and modelling non-linear Rectifiers for RF energy harvesting

Characterizing and modelling non-linear Rectifiers for RF energy harvesting
Characterizing and modelling non-linear Rectifiers for RF energy harvesting
Radio Frequency Energy Harvesting and power transfer, using rectifying antennas, are increasingly seen as an enabling technology of power-autonomous devices. The non-linearity of the rectification element, the diode, adds challenges when experimentally characterizing and comparing the performance of different rectifiers, requiring complex measurement techniques to characterize a diode experimentally, and adds to the challenges of designing a matching network. This paper presents a method for characterizing the power conversion of a mismatched rectifier using a single-port vector network analyzer, omitting the need for impedance tuners and accurately reflecting the non-linearity of the diode. The proposed approach minimizes uncertainty sources in the test setup and shows close agreement with optimized harmonic balance simulation. Finally, harmonic balance simulation is utilized to compare the source and load impedance of the two most common rectifier topologies, a single series and a voltage doubler, acting as a guide for matching network and antenna design.
Wagih, Mahmoud
7e7b16ba-0c64-4f95-bd3c-99064055f693
Weddell, Alex S.
3d8c4d63-19b1-4072-a779-84d487fd6f03
Beeby, Stephen
ba565001-2812-4300-89f1-fe5a437ecb0d
Wagih, Mahmoud
7e7b16ba-0c64-4f95-bd3c-99064055f693
Weddell, Alex S.
3d8c4d63-19b1-4072-a779-84d487fd6f03
Beeby, Stephen
ba565001-2812-4300-89f1-fe5a437ecb0d

Wagih, Mahmoud, Weddell, Alex S. and Beeby, Stephen (2019) Characterizing and modelling non-linear Rectifiers for RF energy harvesting. PowerMEMS 2019: International Conference on Micro and Nanotechnology for Power generation and Energy Conversion Applications, , Krakow, Poland. 03 - 06 Dec 2019. 5 pp .

Record type: Conference or Workshop Item (Paper)

Abstract

Radio Frequency Energy Harvesting and power transfer, using rectifying antennas, are increasingly seen as an enabling technology of power-autonomous devices. The non-linearity of the rectification element, the diode, adds challenges when experimentally characterizing and comparing the performance of different rectifiers, requiring complex measurement techniques to characterize a diode experimentally, and adds to the challenges of designing a matching network. This paper presents a method for characterizing the power conversion of a mismatched rectifier using a single-port vector network analyzer, omitting the need for impedance tuners and accurately reflecting the non-linearity of the diode. The proposed approach minimizes uncertainty sources in the test setup and shows close agreement with optimized harmonic balance simulation. Finally, harmonic balance simulation is utilized to compare the source and load impedance of the two most common rectifier topologies, a single series and a voltage doubler, acting as a guide for matching network and antenna design.

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Characterizing and Modeling Non-Linear Rectifiers for RF Energy Harvesting - Accepted Manuscript
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Accepted/In Press date: September 2019
Published date: 13 December 2019
Venue - Dates: PowerMEMS 2019: International Conference on Micro and Nanotechnology for Power generation and Energy Conversion Applications, , Krakow, Poland, 2019-12-03 - 2019-12-06

Identifiers

Local EPrints ID: 434779
URI: http://eprints.soton.ac.uk/id/eprint/434779
PURE UUID: 6c419ee6-da4d-45d1-9257-f384cd5fae3d
ORCID for Mahmoud Wagih: ORCID iD orcid.org/0000-0002-7806-4333
ORCID for Alex S. Weddell: ORCID iD orcid.org/0000-0002-6763-5460
ORCID for Stephen Beeby: ORCID iD orcid.org/0000-0002-0800-1759

Catalogue record

Date deposited: 09 Oct 2019 16:30
Last modified: 16 Sep 2021 11:16

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