Dual-band dual-mode textile antenna/rectenna for Simultaneous Wireless Information and Power Transfer (SWIPT)
Dual-band dual-mode textile antenna/rectenna for Simultaneous Wireless Information and Power Transfer (SWIPT)
This article presents a textile antenna for dual-band simultaneous wireless information and power transfer (SWIPT). The antenna operates as a 2.4 GHz off-body communications antenna and a sub-1 GHz (785-875 MHz) broad-beam rectenna. Incorporated within the broadside microstrip antenna is a high-impedance rectenna for sub-1 GHz power harvesting. Utilizing antenna-rectifier co-design, the rectenna eliminates the rectifier matching network. The textile antenna is fabricated on a felt substrate and utilizes conductive fabrics for the antenna. At 2.4 GHz, the antenna achieves a realized gain of 7.2 dBi on a body phantom and a minimum radiation efficiency of 63%, with and without the rectifier. The rectenna achieves a best-in-class RF to dc efficiency of 62% from 0.8 \mu \text{W} /cm2, representing over 25% improvement over state-of-the-art textile rectennas and demonstrating that SWIPT does not detrimentally affect the energy harvesting or communications performance. The antenna/rectenna occupies an electrically small area of 0.213\times 0.19\,\,\lambda {2}_{0}. This antenna is the first dual-band, dual-mode antenna demonstrated on textiles for SWIPT applications and the first dual-band matching network-free SWIPT rectenna.
MIMO, SWIPT, Wireless Power Transfer, antenna-rectifier co-design, energy harvesting, microstrip antennas, microstrip rectennas, on-body antenna, rectenna, wearable antennas, wearable rectennas, wireless power transmission
6322-6332
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
1 October 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)
Dual-band dual-mode textile antenna/rectenna for Simultaneous Wireless Information and Power Transfer (SWIPT).
IEEE Transactions on Antennas and Propagation, 69 (10), .
(doi:10.1109/TAP.2021.3070230).
Abstract
This article presents a textile antenna for dual-band simultaneous wireless information and power transfer (SWIPT). The antenna operates as a 2.4 GHz off-body communications antenna and a sub-1 GHz (785-875 MHz) broad-beam rectenna. Incorporated within the broadside microstrip antenna is a high-impedance rectenna for sub-1 GHz power harvesting. Utilizing antenna-rectifier co-design, the rectenna eliminates the rectifier matching network. The textile antenna is fabricated on a felt substrate and utilizes conductive fabrics for the antenna. At 2.4 GHz, the antenna achieves a realized gain of 7.2 dBi on a body phantom and a minimum radiation efficiency of 63%, with and without the rectifier. The rectenna achieves a best-in-class RF to dc efficiency of 62% from 0.8 \mu \text{W} /cm2, representing over 25% improvement over state-of-the-art textile rectennas and demonstrating that SWIPT does not detrimentally affect the energy harvesting or communications performance. The antenna/rectenna occupies an electrically small area of 0.213\times 0.19\,\,\lambda {2}_{0}. This antenna is the first dual-band, dual-mode antenna demonstrated on textiles for SWIPT applications and the first dual-band matching network-free SWIPT rectenna.
Text
MWagih_2021_TAP_TextileSWIPT
- Accepted Manuscript
More information
Accepted/In Press date: 13 March 2021
Published date: 1 October 2021
Additional Information:
Publisher Copyright:
© 1963-2012 IEEE.
Keywords:
MIMO, SWIPT, Wireless Power Transfer, antenna-rectifier co-design, energy harvesting, microstrip antennas, microstrip rectennas, on-body antenna, rectenna, wearable antennas, wearable rectennas, wireless power transmission
Identifiers
Local EPrints ID: 447961
URI: http://eprints.soton.ac.uk/id/eprint/447961
ISSN: 0018-926X
PURE UUID: 91b2e3c7-a26e-4054-811c-0ef99db3b7b4
Catalogue record
Date deposited: 29 Mar 2021 16:30
Last modified: 16 Nov 2024 03:01
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