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Conductive Fabric-Based Reconfigurable Intelligent Surface
Conference proceeding

Conductive Fabric-Based Reconfigurable Intelligent Surface

Md Abu Saleh Tajin, Chelsea E Amanatides, Genevieve Dion and Kapil R Dandekar
The Institute of Electrical and Electronics Engineers, Inc. (IEEE) Conference Proceedings
01 Jan 2022
DOI: https://doi.org/10.1109/AP-S/USNC-URSI47032.2022.9887182

Abstract

Circuit boards Eavesdropping Incident waves Internet of Things New technology Prototypes Radio frequency Signal transmission
Conference Title: 2022 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting (AP-S/USNC-URSI) Conference Start Date: 2022, July 10 Conference End Date: 2022, July 15 Conference Location: Denver, CO, USAReconfigurable intelligent surfaces (RISs) are positioned to be a key enabling technology for next-generation wireless systems. However, for RIS to become pervasive in future systems will require new technologies to unobtrusively integrate them in everyday objects (e.g., carpets, drapes, upholstery) rather than exclusive use of printed circuit boards (PCBs). In this paper, we presented a proof of concept prototype of a fabric-based RIS for internet of thing (IoT) applications. The proposed RIS is a two-dimensional surface with 6 × 9 conductive fabric elements placed on a non-conductive fabric to operate at 2.4 GHz. Each element acts as a radio frequency (RF) switch to either let the signal through (i.e., "lens") or reflect it (i.e., "mirror") to, for example, enable a legitimate link or impair an eavesdropping link. This concept of the RIS is validated in an indoor test, where the proposed fabric RIS prototype provides a 16 dB decrease in received power when the elements in adjacent columns are electrically connected to reflect the incident waves as compared to the case where the elements are electrically isolated to allow signal transmission.

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