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Creators/Authors contains: "SharafiMasouleh, M."

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  1. ; ; (, 2022 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting)
    The goal of this study is to introduce practical state-of-the-art considerations for designing a highly efficient power generation, transmission, and conversion chain system, PGTCC, to power up the front-end’s electronics that acquire satisfactory EEG signal acquisition in a portable wireless and battery-free EEG cap. Several solutions, strategies, and unique configurations have been presented to reach this goal, including, a highly efficient and compact resonance-inductive link, multi-resonator power transfer, use of magnetized materials to improve power transmission efficiency, closed-loop power transmission, and a highly efficient power conversion chain. The proposed design has the potential to significantly improve the total efficiency and supply stable power for the front-end units that include the EEG signal, filtering, noise cancelation amplification units, processing units, and transceivers. 
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  2. ; ; (, 2022 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting)
    This work presents a fully battery-less and wireless (untethered) EEG readout cap. The powering system is equipped with a highly efficient and compact power transmitter mosaicked by an array of 8×11 Tx resonators in a certain pattern operating at the lowest ISM band of 6.78 MHz. The front-end’s power receiver block Rx includes multi-resonators mounted all-around an EEG cap that can be worn by a subject. Furthermore, considering the subject's head which could assume different positions, a well-designed positioning system and an intelligent feeding setup are developed to balance the efficiency drop due to misalignment and to involve the most associated resonators with the powering scenario with the potential of switching off the extraneous resonators that are not engaged with Transmit and Receive (Tx-Rx) power. 
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