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Towards multi-mode millimeter wave body area networks for information and power transmission: a co-existence study

Towards multi-mode millimeter wave body area networks for information and power transmission: a co-existence study
Towards multi-mode millimeter wave body area networks for information and power transmission: a co-existence study
While millimeter-wave (mmWave) technologies are often associated with costly applications using large arrays, several inexpensive implementations promise mmWave connectivity closer to the user in Body Area Networks (BANs) applications. Here, we evaluate the potential for multi-mode mmWave links for information and power transfer applications. The co-existence of off-body radiative and on-body wave-guiding mechanisms is experimentally investigated based on state-of-the-art transmission lines and antennas. First, a body-to-body link with at least -50 dB channel gain is demonstrated based on wide-beam microstrip and reflector-backed broadband antennas. Co-existence is then studied experimentally by measuring the coupling between the off-body communication/power transfer antenna and a wearable Single Wire Transmission Line (SWTL), with an ultra-low on-body attenuation of below -0.8 dB/cm around 28 GHz. Less than -40 dB coupling is demonstrated for clearances as low as 1 cm between the antenna and SWTL. The measured results indicate that co-located textile-based antennas and transmission lines can enable multi-mode high-performance body-centric mmWave networks, and highlight the need for interference-countering mechanisms in future high-density BANs.
mmWave, 5G, 6G, millimeter wave, textile antenna, mmWave wearables, BANs, Body area networks, off body, on body, antennas, waveguides, single wire transmission lines, surface waves, SWTL, Goubau line, mutual coupling, interference, cross-talk, wireless power transfer, wireless power transmission, WPT, RF energy harvesting, battery-free wearables, high-speed, vivaldi antennas, patch antennas, microstrip antennas, wearable antennas, co-existence
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 (2022) Towards multi-mode millimeter wave body area networks for information and power transmission: a co-existence study. In 2022 Mediterranean Microwave Symposium. IEEE. 4 pp . (In Press)

Record type: Conference or Workshop Item (Paper)

Abstract

While millimeter-wave (mmWave) technologies are often associated with costly applications using large arrays, several inexpensive implementations promise mmWave connectivity closer to the user in Body Area Networks (BANs) applications. Here, we evaluate the potential for multi-mode mmWave links for information and power transfer applications. The co-existence of off-body radiative and on-body wave-guiding mechanisms is experimentally investigated based on state-of-the-art transmission lines and antennas. First, a body-to-body link with at least -50 dB channel gain is demonstrated based on wide-beam microstrip and reflector-backed broadband antennas. Co-existence is then studied experimentally by measuring the coupling between the off-body communication/power transfer antenna and a wearable Single Wire Transmission Line (SWTL), with an ultra-low on-body attenuation of below -0.8 dB/cm around 28 GHz. Less than -40 dB coupling is demonstrated for clearances as low as 1 cm between the antenna and SWTL. The measured results indicate that co-located textile-based antennas and transmission lines can enable multi-mode high-performance body-centric mmWave networks, and highlight the need for interference-countering mechanisms in future high-density BANs.

Text
Wagih_MMS2022_mmWave_BANs - Accepted Manuscript
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More information

Accepted/In Press date: 2022
Venue - Dates: 2022 Mediterranean Microwave Symposium, , Pizzo Calabro, Italy, 2022-05-09
Keywords: mmWave, 5G, 6G, millimeter wave, textile antenna, mmWave wearables, BANs, Body area networks, off body, on body, antennas, waveguides, single wire transmission lines, surface waves, SWTL, Goubau line, mutual coupling, interference, cross-talk, wireless power transfer, wireless power transmission, WPT, RF energy harvesting, battery-free wearables, high-speed, vivaldi antennas, patch antennas, microstrip antennas, wearable antennas, co-existence

Identifiers

Local EPrints ID: 456803
URI: http://eprints.soton.ac.uk/id/eprint/456803
PURE UUID: 7abb3364-10a2-4ca4-806c-9ffb66c25a85
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 16:49
Last modified: 13 May 2022 04:01

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Contributors

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

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