A Leaky-Wave Antenna Design for RF Gesture Recognition

Bharath G. Kashyap, Georgios C. Trichopoulos

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

We present a conformable antenna design for radio frequency (RF) based tracking of hand gestures. A substrate-integrated waveguide leaky-wave antenna (SIW-LWA) is employed as the radiating element to couple RF signals into the human hand. The antenna is envisaged to be integrated in a wristband topology and capture the changes in the electric field caused by various movements of the hand. In this numerical study, we treat the LWA as a two-port device and design a simplified model of the wrist based on published measured tissue properties. As such, we investigate how the S-parameters are affected due to changes in the wrist anatomy (e.g., tendon displacement). These variations can be mapped to individual gestures and used to interact with a computer. As small as 0.1 mm tendon displacements have shown very distinct frequency responses which highlights the potential sensitivity of such an RF-based system in hand gesture recognition.

Original languageEnglish (US)
Title of host publication2023 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting, AP-S/URSI 2023 - Proceedings
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages1253-1254
Number of pages2
ISBN (Electronic)9781665442282
DOIs
StatePublished - 2023
Event2023 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting, AP-S/URSI 2023 - Portland, United States
Duration: Jul 23 2023Jul 28 2023

Publication series

NameIEEE Antennas and Propagation Society, AP-S International Symposium (Digest)
Volume2023-July
ISSN (Print)1522-3965

Conference

Conference2023 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting, AP-S/URSI 2023
Country/TerritoryUnited States
CityPortland
Period7/23/237/28/23

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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