RF Energy Harvesting using Complex-Conjugate Rectennas Along Single-Wire Transmission Lines

Wagih, M. (2023) RF Energy Harvesting using Complex-Conjugate Rectennas Along Single-Wire Transmission Lines. In: 2023 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting, Portland, Oregon, USA, 23–28 July 2023, pp. 677-678. ISBN 9781665442282 (doi: 10.1109/USNC-URSI52151.2023.10237703)

Abstract

Goubau Single-Wire Transmission Lines (SWTL) enable low-loss long-distance links using surface waves confined to a single conductor. Here, the concept of harvesting RF energy in the near-field of a high-power SWTL is proposed, showing up to 25 mW and 30 V DC output from a wire excited with under 30 dBm of 902 MHz signals. The leakage from the SWTL is harvested using a flexible single-layer rectenna array based on six complex-conjugate electrically-small antennas with series power summation between the elements. 15 mW of DC power could be harvested at 4 m distance from the transmitter in proximity of an SWTL, compared to under 150 μW in space. It is shown that SWTLs could enable long-range low-loss hybrid wireless power transmission (WPT).

• Item Type: Conference Proceedings
• Additional Information: This work was supported by the UK RAEng and the Office of the Chief Science Adviser for National Security under the UK Intelligence Community Research Fellowship programme.
• Status: Published
• Refereed: Yes
• Glasgow Author(s) Enlighten ID: Wagih, Dr Mahmoud
• Authors: Wagih, M.
• College/School: College of Science and Engineering > School of Engineering > Electronics and Nanoscale Engineering
• ISSN: 1947-1491
• ISBN: 9781665442282
• Published Online: 07 September 2023
• Copyright Holders: Copyright © 2023 IEEE
• First Published: First published in 2023 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting: 677-678
• Publisher Policy: Reproduced in accordance with the publisher copyright policy