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Millimeter-wave textile-based monopole antenna for wearable wireless power transmission

Millimeter-wave textile-based monopole antenna for wearable wireless power transmission
Millimeter-wave textile-based monopole antenna for wearable wireless power transmission
With a wide bandwidth and a high potential for antenna miniaturization, the millimeter-wave (mmWave) bands have attracted interest for a range of wearable applications. In this paper, a textile-based end-fire monopole is proposed for wireless power transmission (WPT) applications. The proposed Yagi-inspired antenna bandwidth covers the 24 GHz license-free band. The antenna achieves 73% total efficiency, a 2.5 dB improvement over a microstrip patch on the same textile substrate. The antenna has a peak gain over 4 dBi with a wide 80 half-power beamwidth both in space and on a layered human tissue model. The antenna is experimentally characterized for line-of-sight WPT showing a 7 dB forward transmission improvement compared to 2.45 GHz WPT, for 55 cm separation, between two symmetric antennas with sub-cm2 area. Given the antenna’s 0.4 cm2 area, it is shown that mmWaves enable high-efficiency WPT to miniaturized antennas in future 5G networks.
IEEE
Wagih, Mahmoud
7e7b16ba-0c64-4f95-bd3c-99064055f693
Weddell, Alex S.
3d8c4d63-19b1-4072-a779-84d487fd6f03
Beeby, Steve
ba565001-2812-4300-89f1-fe5a437ecb0d
Wagih, Mahmoud
7e7b16ba-0c64-4f95-bd3c-99064055f693
Weddell, Alex S.
3d8c4d63-19b1-4072-a779-84d487fd6f03
Beeby, Steve
ba565001-2812-4300-89f1-fe5a437ecb0d

Wagih, Mahmoud, Weddell, Alex S. and Beeby, Steve (2021) Millimeter-wave textile-based monopole antenna for wearable wireless power transmission. In General Assembly of the International Radio Science Union (URSI). IEEE. 4 pp . (In Press)

Record type: Conference or Workshop Item (Paper)

Abstract

With a wide bandwidth and a high potential for antenna miniaturization, the millimeter-wave (mmWave) bands have attracted interest for a range of wearable applications. In this paper, a textile-based end-fire monopole is proposed for wireless power transmission (WPT) applications. The proposed Yagi-inspired antenna bandwidth covers the 24 GHz license-free band. The antenna achieves 73% total efficiency, a 2.5 dB improvement over a microstrip patch on the same textile substrate. The antenna has a peak gain over 4 dBi with a wide 80 half-power beamwidth both in space and on a layered human tissue model. The antenna is experimentally characterized for line-of-sight WPT showing a 7 dB forward transmission improvement compared to 2.45 GHz WPT, for 55 cm separation, between two symmetric antennas with sub-cm2 area. Given the antenna’s 0.4 cm2 area, it is shown that mmWaves enable high-efficiency WPT to miniaturized antennas in future 5G networks.

Text
GASS21_mmWMonopole_ - Accepted Manuscript
Restricted to Repository staff only until 30 September 2021.
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Accepted/In Press date: March 2021

Identifiers

Local EPrints ID: 447930
URI: http://eprints.soton.ac.uk/id/eprint/447930
PURE UUID: 04fee1bb-3c0b-406d-9ef4-dbccd04bd8f1
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: 26 Mar 2021 17:31
Last modified: 27 Mar 2021 02:41

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Contributors

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

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