Design of a Dual-Branch Resonator End-Launcher for Low-Loss WBAN Communications Using Wearable Waveguide Surfaces

Wearable waveguide surfaces can be integrated into textiles to improve Wireless Body Area Networks (WBANs). In this work, a compact 30 mm x 30 mm dual-branch resonator end-launcher to enable communication through a waveguide surface manufactured with textile-compatible material at 2.4GHz is proposed...

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Bibliographic Details
Published in:IEEE Open Journal of Antennas and Propagation 2024-02, Vol.5 (1), p.67-72
Main Authors: Bacha, Maria El, Ferrero, Fabien, Lizzi, Leonardo
Format: Article
Language:English
Subjects:
Antennas
Body area networks
Dipole antennas
Electromagnetic waveguides
end-launcher
human body torso
on-body communication
Surface impedance
Textile antennas
waveguide surface
wearable
Wearable devices
Wireless communication
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Summary:Wearable waveguide surfaces can be integrated into textiles to improve Wireless Body Area Networks (WBANs). In this work, a compact 30 mm x 30 mm dual-branch resonator end-launcher to enable communication through a waveguide surface manufactured with textile-compatible material at 2.4GHz is proposed. A 25 mm x 25 mm clearance zone area is respected for electronic component integration. The end-launcher topology uses a balanced dual-branch configuration to maximize electromagnetic coupling with the flexible waveguide surface. A design methodology is proposed to co-design the end-launcher and the waveguide surface. Experimental measurements on the human body torso are presented with 0.3 dB/cm insertion loss between 2.4 and 2.48 GHz. The final result is an autonomous, compact, wireless-contact, and battery-powered end-launcher for innovative clothing applications.
ISSN:2637-6431
2637-6431
DOI:10.1109/OJAP.2023.3332846