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Watt-level low-SAR near-field wearable wireless power transfer using an all-textile receiver

Watt-level low-SAR near-field wearable wireless power transfer using an all-textile receiver
Watt-level low-SAR near-field wearable wireless power transfer using an all-textile receiver
Near-field radiative Wireless Power Transfer (WPT)has the advantage of high-power WPT. In this paper, an all textile high-power WPT receiver is realized for the first time, using an embroidered coil and a printed tuning capacitor on a textile substrate. The proposed coil is demonstrated receiving over 3 W DC power at 6.78 MHz with a 23% end-to-end efficiency. A low Specific Absorption Rate (SAR) of 0.37 W/kg is observed, through full-wave simulation, for up to 10 W high frequency input to the on-body coil, demonstrating its suitability for wearable applications.
SAR, WPT, inductive power transfer, magnetic resonant, wireless power transfer, MR-WPT, rectenna, antenna, wearable antenna, radio exposure, wireless power safety regulations, watt-level WPT, high-power WPT, wearable wireless charging, wireless charging, rectifiers, high-power rectifier, wide dynamic range rectenna, energy harvesting, RF energy harvesting, specific absorption rate
IEEE
Wagih, Mahmoud
7e7b16ba-0c64-4f95-bd3c-99064055f693
Komolafe, Abiodun
5e79fbab-38be-4a64-94d5-867a94690932
Weddell, Alex S.
3d8c4d63-19b1-4072-a779-84d487fd6f03
Beeby, Steve
ba565001-2812-4300-89f1-fe5a437ecb0d
Wagih, Mahmoud
7e7b16ba-0c64-4f95-bd3c-99064055f693
Komolafe, Abiodun
5e79fbab-38be-4a64-94d5-867a94690932
Weddell, Alex S.
3d8c4d63-19b1-4072-a779-84d487fd6f03
Beeby, Steve
ba565001-2812-4300-89f1-fe5a437ecb0d

Wagih, Mahmoud, Komolafe, Abiodun, Weddell, Alex S. and Beeby, Steve (2022) Watt-level low-SAR near-field wearable wireless power transfer using an all-textile receiver. In 2022 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting. IEEE. 2 pp . (In Press) (doi:10.1109/MAP.2021.3121522).

Record type: Conference or Workshop Item (Paper)

Abstract

Near-field radiative Wireless Power Transfer (WPT)has the advantage of high-power WPT. In this paper, an all textile high-power WPT receiver is realized for the first time, using an embroidered coil and a printed tuning capacitor on a textile substrate. The proposed coil is demonstrated receiving over 3 W DC power at 6.78 MHz with a 23% end-to-end efficiency. A low Specific Absorption Rate (SAR) of 0.37 W/kg is observed, through full-wave simulation, for up to 10 W high frequency input to the on-body coil, demonstrating its suitability for wearable applications.

Text
Wagih_APS22_SAR_NearField - Accepted Manuscript
Restricted to Repository staff only until 15 July 2022.
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More information

Accepted/In Press date: 24 March 2022
Venue - Dates: 2022 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting, , Denver, United States, 2022-07-10 - 2022-07-15
Keywords: SAR, WPT, inductive power transfer, magnetic resonant, wireless power transfer, MR-WPT, rectenna, antenna, wearable antenna, radio exposure, wireless power safety regulations, watt-level WPT, high-power WPT, wearable wireless charging, wireless charging, rectifiers, high-power rectifier, wide dynamic range rectenna, energy harvesting, RF energy harvesting, specific absorption rate

Identifiers

Local EPrints ID: 456797
URI: http://eprints.soton.ac.uk/id/eprint/456797
PURE UUID: 7d2cdf89-e53a-4222-8725-774be803dbb2
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 Steve Beeby: ORCID iD orcid.org/0000-0002-0800-1759

Catalogue record

Date deposited: 11 May 2022 16:48
Last modified: 12 May 2022 02:01

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Contributors

Author: Mahmoud Wagih ORCID iD
Author: Abiodun Komolafe
Author: Alex S. Weddell ORCID iD
Author: Steve Beeby ORCID iD

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