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Abstract
This study introduces a compact wearable metasurface transmission line operating at 2.45 GHz, utilizing spoof surface plasmon polariton (SSPP). The design incorporates a periodic arrangement of hook unit cells and a tapering structure to enhance coupling efficiency between the microstrip feed line and the metasurface transmission line. For its implementation, a dielectric substrate composed entirely of cotton denim jeans is employed, along with e-textile conductive traces and a ground plane. Electromagnetic wave propagation along the transmission line is simulated, and the primary wave mode and associated propagation characteristics are analyzed. Both simulation and measurement results confirm the successful performance of the metasurface transmission line for on-body signal transmissions.
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No potential conflict of interest was reported by the author(s).
Additional information
Notes on contributors
Jose Alcala-Medel
Jose Alcala-Medel received a B.S. degree in electrical engineering from George Fox University in 2018. He is currently pursuing a Ph.D. degree in electrical and computer engineering at Baylor University. His research interests include the Human Body Channel, Wireless Body Area networks, wearable circuits and metasurfaces.
Jayshri Kulkarni
Jayshri Kulkarni received the B.E. degree in E&TC engineering from Shivaji University, Maharashtra, India, in 2005, the M.E. degree in Microwave Engineering from the PICT College, Pune, Maharashtra, in 2011, and the Ph.D. degree in Electronics and Communication Engineering from Anna University, Chennai, India, in 2020. From 2006 to 2009, she was a Lecturer with the GSM College of Engineering, Pune. From 2010 to 2022, she was an Assistant Professor with the E&TC Engineering Department, VIIT, Pune. From 2022 to 2024, She was a Postdoctoral Research Associate with Baylor University, Waco, TX, USA. Presently, she is working as an Assistant Professor at Wentworth Institute of Technology, Boston, USA. She has authored more than ten books and more than 60 research papers in reputed journals and conferences. Her research interests include antennas, microwave engineering, and wireless communications. Dr. Kulkarni received several awards, including the Desmond Sim Award for Best Antenna Design Paper at IEEE InCAP 2019, India, the Outstanding Oral Presentation Award at ICRAMET-2020 Indonesia, and the Best Paper of the Session Award at IEEE ESCI-2021, Pune. She was one of the recipients of the reputed Mojgan Daneshmand Grant awarded by IEEE Antennas and Propagation Society (AP-S)-2022.
Stephen McClain
Stephen McClain received his B.S.M.E. degree from the University of Memphis in 1995 and his M.S. (1997) and Ph.D. (2002) degrees from Mississippi State University. Dr. McClain serves as Professor and Graduate Program Director for the Department of Mechanical Engineering at Baylor University. His primary research interests are in-flight ice accretion physics, gas-turbine heat transfer, and experimental methods for flow and heat transfer. He has been associated with the Microwave Applied Metrology Laboratory at Baylor University since 2014 focusing on microwave sensing for water and ice detection in aviation environments. He has authored or co-authored 33 journal articles, 90 conference papers, and two patents.
Yang Li
Yang Li received the B.S. degree in electrical engineering from University of Science and Technology of China, in 2005, and the M.S. and Ph.D. degrees in electrical and computer engineering from The University of Texas at Austin, in 2007 and 2011, respectively. He joined as a faculty member with Baylor University in 2011, where he is currently a Professor of Electrical and Computer Engineering. His research interests include body area electromagnetic wave propagation and antenna radiation, wearable antenna analysis and design, effective medium theory and homogenization technique, and micro-doppler radar. He has authored 43 journal papers and 80 conference papers and abstracts. He is an associate editor for the IEEE Journal of Electromagnetics, RF and Microwaves in Medicine and Biology, and served as a general co-chair for the 2022 IEEE Texas Symposium on Wireless and Microwave Circuits and Systems.