TY - CHAP
T1 - On-Body Flexible Energy Harvesting Antenna Design Aided by Characteristic Mode Analysis
AU - Yang, Furong
AU - Song, Chaoyun
AU - Xu, Kai
N1 - Publisher Copyright:
© 2024 IEEE.
PY - 2024
Y1 - 2024
N2 - This paper introduces an on-body, flexible energy-harvesting antenna, utilizing characteristic mode analysis (CMA) to enhance and predict its design and performance under bending conditions. The initial design features a simple E-shaped patch antenna, with structural modifications implemented by incorporating a U-slot into the E-shaped configuration following CMA evaluation. The antenna's on-body performance is evaluated through cylindrical bending with varying radii, considering the proximity of a human wrist model to the antenna. The final antenna exhibits superior performance after bending, demonstrating robust gain and an expanded bandwidth compared to its initial state. Notably, the antenna achieves a maximum bandwidth of 3.73 GHz to 8.18 GHz under severe bending conditions. Under slight bending scenarios, the antenna attains a peak gain of 10.3 dBi at 5.0 GHz. Of particular significance, the antenna's bandwidth encompasses the ISM 5.8 GHz band, positioning it as a promising candidate for Wireless Energy Harvesting (WEH) applications. Crucially, this paper validates the efficacy of Characteristic Mode Analysis in predicting the impact of bending on antennas, thereby providing valuable insights for the design of flexible and conformal antennas.
AB - This paper introduces an on-body, flexible energy-harvesting antenna, utilizing characteristic mode analysis (CMA) to enhance and predict its design and performance under bending conditions. The initial design features a simple E-shaped patch antenna, with structural modifications implemented by incorporating a U-slot into the E-shaped configuration following CMA evaluation. The antenna's on-body performance is evaluated through cylindrical bending with varying radii, considering the proximity of a human wrist model to the antenna. The final antenna exhibits superior performance after bending, demonstrating robust gain and an expanded bandwidth compared to its initial state. Notably, the antenna achieves a maximum bandwidth of 3.73 GHz to 8.18 GHz under severe bending conditions. Under slight bending scenarios, the antenna attains a peak gain of 10.3 dBi at 5.0 GHz. Of particular significance, the antenna's bandwidth encompasses the ISM 5.8 GHz band, positioning it as a promising candidate for Wireless Energy Harvesting (WEH) applications. Crucially, this paper validates the efficacy of Characteristic Mode Analysis in predicting the impact of bending on antennas, thereby providing valuable insights for the design of flexible and conformal antennas.
KW - characteristic mode analysis
KW - flexible antennas
KW - wireless energy harvesting
KW - wireless power transfer
UR - http://www.scopus.com/inward/record.url?scp=85197463472&partnerID=8YFLogxK
U2 - 10.1109/WPTCE59894.2024.10557395
DO - 10.1109/WPTCE59894.2024.10557395
M3 - Conference paper
AN - SCOPUS:85197463472
T3 - Proceedings of 2024 IEEE Wireless Power Technology Conference and Expo, WPTCE 2024
SP - 300
EP - 303
BT - Proceedings of 2024 IEEE Wireless Power Technology Conference and Expo, WPTCE 2024
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2024 IEEE Wireless Power Technology Conference and Expo, WPTCE 2024
Y2 - 8 May 2024 through 11 May 2024
ER -