2.4 GHz wearable textile antenna/rectenna for simultaneous information and power transfer
2.4 GHz wearable textile antenna/rectenna for simultaneous information and power transfer
Antennas and rectennas for self-powered body area networks (BANs) have attracted significant interest, in an effort to improve the sustainability of e-textiles. This paper presents a novel dual-port fully-textile antenna, based on a simple microstrip patch, for simultaneous wireless information and power transfer (SWIPT) at 2.4 GHz, presenting the first antenna-rectifier co-design implementation for SWIPT. The proposed antenna's input bandwidth covers the license-free band achieving 8.9 dBi measured directivity and 41% efficiency at 2.4 GHz, with a simple proximity-coupled microstrip feed. For power harvesting, port 2 is designed to achieve a scalable complex impedance to directly match the rectifier without a separate matching network, and achieves 6.3 dBi off-body gain. The proposed rectenna feed improves the antenna's isolation by at least 15 dB compared to a microstrip feed similar to port 1. The rectenna achieves over 40% power conversion efficiency (PCE) from -10 dBm, when placed directly on-body, with a 71% peak PCE.
Antennas, Electronic Textile, Microstrip Antennas, RF Energy Harvesting, Rectifiers, SWIPT, Wearable Antennas, Wireless Power Transfer
Wagih, Mahmoud
7e7b16ba-0c64-4f95-bd3c-99064055f693
Hilton, Geoffrey S.
3edc9be4-ad15-4964-8093-953874cb9d94
Weddell, Alex S.
3d8c4d63-19b1-4072-a779-84d487fd6f03
Beeby, Steve
ba565001-2812-4300-89f1-fe5a437ecb0d
27 April 2021
Wagih, Mahmoud
7e7b16ba-0c64-4f95-bd3c-99064055f693
Hilton, Geoffrey S.
3edc9be4-ad15-4964-8093-953874cb9d94
Weddell, Alex S.
3d8c4d63-19b1-4072-a779-84d487fd6f03
Beeby, Steve
ba565001-2812-4300-89f1-fe5a437ecb0d
Wagih, Mahmoud, Hilton, Geoffrey S., Weddell, Alex S. and Beeby, Steve
(2021)
2.4 GHz wearable textile antenna/rectenna for simultaneous information and power transfer.
In 15th European Conference on Antennas and Propagation, EuCAP 2021.
IEEE..
(doi:10.23919/EuCAP51087.2021.9411499).
Record type:
Conference or Workshop Item
(Paper)
Abstract
Antennas and rectennas for self-powered body area networks (BANs) have attracted significant interest, in an effort to improve the sustainability of e-textiles. This paper presents a novel dual-port fully-textile antenna, based on a simple microstrip patch, for simultaneous wireless information and power transfer (SWIPT) at 2.4 GHz, presenting the first antenna-rectifier co-design implementation for SWIPT. The proposed antenna's input bandwidth covers the license-free band achieving 8.9 dBi measured directivity and 41% efficiency at 2.4 GHz, with a simple proximity-coupled microstrip feed. For power harvesting, port 2 is designed to achieve a scalable complex impedance to directly match the rectifier without a separate matching network, and achieves 6.3 dBi off-body gain. The proposed rectenna feed improves the antenna's isolation by at least 15 dB compared to a microstrip feed similar to port 1. The rectenna achieves over 40% power conversion efficiency (PCE) from -10 dBm, when placed directly on-body, with a 71% peak PCE.
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More information
Accepted/In Press date: 2021
e-pub ahead of print date: 27 April 2021
Published date: 27 April 2021
Additional Information:
Funding Information:
This work was supported by the UK Engineering and Physical Sciences Research Council (EPSRC) under Grant EP/P010164/1.
Publisher Copyright:
© 2021 EurAAP.
Venue - Dates:
2021 15th European Conference on Antennas and Propagation (EuCAP), , Dusseldorf, Germany, 2021-03-22 - 2021-03-26
Keywords:
Antennas, Electronic Textile, Microstrip Antennas, RF Energy Harvesting, Rectifiers, SWIPT, Wearable Antennas, Wireless Power Transfer
Identifiers
Local EPrints ID: 446300
URI: http://eprints.soton.ac.uk/id/eprint/446300
PURE UUID: d1655746-c6dd-4de1-b847-4fa57b9fde52
Catalogue record
Date deposited: 04 Feb 2021 17:30
Last modified: 14 Dec 2024 03:03
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