Selective Microwave Wireless Power Transfer to Sensors Embeddedin Concrete at Sub-wavelength Spacing using ElectromagneticTime-reversal Technique

Authors

  • Baidenger Agyekum Twumasi 1) School of Resources and Environment University of Electronic Science and Technology of China, Chengdu, China 2)Dept. of Electrical and Electronic Engineering Ho Technical University, Ho, Ghana
  • Jia-Lin Li School of Resources and Environment University of Electronic Science and Technology of China, Chengdu, China https://orcid.org/0000-0002-0409-4097
  • Faith Kwaku Deynu Dept. of Electrical and Electronic Engineering Ho Technical University, Ho, Ghana https://orcid.org/0000-0002-7271-4964
  • Ebenezer Tawiah Ashong Dept. of Electrical and Electronic Engineering Ho Technical University, Ho, Ghana https://orcid.org/0000-0001-8269-8518
  • Christian Dzah Dept. of Electrical and Electronic Engineering Ho Technical University, Ho, Ghana
  • Dustin Pomary Dept. of Electrical and Electronic Engineering Ho Technical University, Ho, Ghana https://orcid.org/0000-0002-0739-4677

DOI:

https://doi.org/10.13052/2024.ACES.J.390410

Keywords:

electromagnetic time reversal, sensors, super-resolution, wireless power transfer

Abstract

Wireless power transfer has become a trending research area for remotely transferring power. This paper presents the numerical simulation study of selective wireless power transfer to closely spaced wireless sensors embedded in reinforced concrete. A selective microwave wireless power transfer is achieved at a 10 mm separation between tightly-coupled monopole antennas (wireless sensor antennas). Both tightly-coupled wireless sensors operate at 2.45 GHz, hence beating the diffraction limit at λ/12 with the incorporation of additional scatterers in the reinforced concrete environment. The main objective is to realize selective wireless power transfer to wireless sensors with subwavelength separation (closely spaced) to which one makes the power request. Here, the presence of meta-structures creates some randomness serving as scatterers in the use of the electromagnetic time-reversal technique which enhances the spatial refocusing beyond the diffraction limit. This implies that the focal spot is less than half of the carrier wavelength at the operating frequency. At any time that one of the tightly-coupled sensor antennas sends a power request, power will be transferred to it alone. Cases of dry concrete with and without reinforced bars have been studied with electromagnetic time-reversal techniques for the closely spaced sensors embedded in concrete.

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Author Biographies

Baidenger Agyekum Twumasi, 1) School of Resources and Environment University of Electronic Science and Technology of China, Chengdu, China 2)Dept. of Electrical and Electronic Engineering Ho Technical University, Ho, Ghana

Baidenger Agyekum Twumasi was born in Nsawam, E/R-Ghana in 1981. He received an H.N.D. in Electrical/Electronic Engineering from Ho Technical University (Ho Polytechnic), Ghana, in 2004, the Master of Engineering degree (MEng.) in Telecommunication Management from the HAN University of Applied Sciences, Arnhem, the Netherlands in 2011, and the Ph.D. degree in Electronic Science and Technology from the University of Electronic Science and Technology of China, Chengdu, China in 2020. He is with the University of Electronic Science and Technology of China (UESTC), China, as a post-doctoral researcher. He has been with the Electrical & Electronic Engineering Department of Ho Technical University (HTU), Ho, in Ghana since February 2008 where he is currently a Senior Lecturer. His current research interests include antennas and propagation, electromagnetic time-reversal applications, wireless power transfer, flexible (wearable) electronics, circuits and systems.

Jia-Lin Li, School of Resources and Environment University of Electronic Science and Technology of China, Chengdu, China

Jia-Lin Li was born in October 1972 in Sichuan, China. He received the M.S. degree from the University of Electronic Science and Technology of China (UESTC), Chengdu, China, in 2004, and the Ph.D. degree from the City University of Hong Kong, Hong Kong, in 2009, both in electronic engineering. From September 2005 to August 2006, he was a Research Associate with the Wireless Communication Research Center, City University of Hong Kong, Hong Kong. From September 2009 to April 2021, he was with the School of Physical Electronics, UESTC and initially served as a Lecturer and then a professor. Since May 2021, he has been with the School of Resources and Environment, UESTC. His research interests include microwave/millimeter-wave antennas and arrays, circuits and systems, electromagnetic-wave detection, and imaging.

Faith Kwaku Deynu, Dept. of Electrical and Electronic Engineering Ho Technical University, Ho, Ghana

Faith Kwaku Deynu received his MSc. degree in Telecommunication Engineering at HAN University of Applied Sciences, Netherlands in 2011 and his Ph.D. degree in Information and Communication Engineering at University of Electronic Science and Technology of China (UESTC), Chengdu, China. He is currently a Senior Lecturer at Electrical/Electronic Engineering Department of Ho Technical University, Ho, Ghana. His research interests include internet protocol (IP) multimedia subsystems, optical fiber, and power line communication systems.

Ebenezer Tawiah Ashong, Dept. of Electrical and Electronic Engineering Ho Technical University, Ho, Ghana

Ebenezer Tawiah Ashong received a B.Sc. degree in Telecommunication Engineering from Kwame Nkrumah University of Science and Technology, Kumasi, Ghana in 2015 and an MEng degree in Electronic Engineering from Hanbat National University, Daejeon, Korea, in 2019. He is currently pursuing a PhD in Electrical and Information Engineering at Seoul National University of Science and Technology, Seoul, Korea. He is currently a Lecturer in the Department of Electrical & Electronic Engineering at Ho Technical University, Ho. His current research interests include antennas and arrays, wireless power transfer, electromagnetic compatibility, measurement and instrumentation, and telecom policy and regulation.

Christian Dzah, Dept. of Electrical and Electronic Engineering Ho Technical University, Ho, Ghana

Christian Dzah was born in Ho, Volta Region of Ghana in 1977. He obtained his Higher National Diploma (HND) Certificate in Electrical/Electronic Engineering from Ho Polytechnic, Ghana in 2009. He obtained his Bachelor of Science Degree in Electrical/Electronic Engineering from Regional Maritime University, Accra-Ghana, in 2015. In 2019, he obtained his Master of Philosophy Degree in Electrical and Electronic Engineering from the University of Mines and Technology, Tarkwa, Ghana. Currently, he is an Assistant Lecturer in the Department of Electrical/Electronic Engineering, at Ho Technical University, Ghana.

Dustin Pomary, Dept. of Electrical and Electronic Engineering Ho Technical University, Ho, Ghana

Dustin Pomary received his Bachelor of Engineering in Biomedical Engineering from All Nations University, Koforidua, Ghana, in 2017 and his MPhil in Biomedical Engineering at the University of Ghana, Legon, in 2021. His thematic area of study is implants sciences and regenerative engineering. He is currently an Assistant Lecturer in the Department of Electrical & Electronic Engineering at Ho Technical University, Ho, Ghana. His current research interests include implant sciences, regenerative engineering, drug delivery, computational simulation, and biomaterials.

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Published

2024-04-30

How to Cite

[1]
B. A. Twumasi, J.-L. Li, F. K. Deynu, E. T. Ashong, C. Dzah, and D. Pomary, “Selective Microwave Wireless Power Transfer to Sensors Embeddedin Concrete at Sub-wavelength Spacing using ElectromagneticTime-reversal Technique”, ACES Journal, vol. 39, no. 04, pp. 364–375, Apr. 2024.

Issue

2024: Vol 39 Iss 4

Section

General Submission

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