Abstract
This article presents an optimized multicoil array transceiver antenna design to localize the position of a human hand for a touchless artificial human interface. The functioning of the system is evolved from combined principles of a two-coil and three-coil magnetic resonance coupling-based wireless power transfer techniques. The proposed system comprises a transceiver antenna platform made of spatially distributed multicoil arrays as transmitter and receiver antennas, and a resonator coil. The resonator coil attached to the fingertip of the user is localized by comparing the voltage gains of the receiver antenna array working as sensors with the decision thresholds. Therefore, the coil arrays of the transceiver platform and the resonator coil are jointly optimized to enhance the localization accuracy by maximizing the separation of receiver antenna readings from the decision thresholds. The fabricated prototype of the optimized antenna system is measured, and performance is analyzed for various movements of the user fingertip. The results reveal the decision threshold limits of the design for localization and prove that the proposed transceiver antenna system is able to track the human hand movement successfully. Unlike other vision and sensor-based interfacing, the proposed transceiver antenna system provides a cost-effective, user-friendly, and hygienic solution.
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