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Lithium Niobate Piezoelectric Micromachined Ultrasonic Transducers for high data-rate intrabody communication

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  • Flavius Pop

    (Northeastern University)

  • Bernard Herrera

    (Northeastern University)

  • Matteo Rinaldi

    (Northeastern University)

Abstract

In recent years, there has been an increased interest in continuous monitoring of patients and their Implanted Medical Devices (IMDs) with different wireless technologies such as ultrasounds. This paper demonstrates a high data-rate intrabody communication link based on Lithium Niobate (LN) Piezoelectric Micromachined Ultrasonic Transducers (pMUTs). The properties of the LN allow to activate multiple flexural mode of vibration with only top electrodes. When operating in materials like the human tissue, these modes are merging and forming a large communication bandwidth. Such large bandwidth, up to 400 kHz, allows for a high-data rate communication link for IMDs. Here we demonstrate a full communication link in a tissue phantom with a fabricated LN pMUT array of 225 elements with an area of just 3 by 3 mm square, showing data-rates up to 800 kbits/s, starting from 3.5 cm and going up to 13.5 cm, which covers the vast majority of IMDs.

Suggested Citation

  • Flavius Pop & Bernard Herrera & Matteo Rinaldi, 2022. "Lithium Niobate Piezoelectric Micromachined Ultrasonic Transducers for high data-rate intrabody communication," Nature Communications, Nature, vol. 13(1), pages 1-12, December.
    • Handle: RePEc:nat:natcom:v:13:y:2022:i:1:d:10.1038_s41467-022-29355-9
    DOI: 10.1038/s41467-022-29355-9
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    References listed on IDEAS

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    1. Esraa Youssef Salem & Menna Y. Zain & Mira Alfons, 2020. "Smart Wearable Health Device for Heart Rate and Temperature Measurements," International Journal of Technology Diffusion (IJTD), IGI Global, vol. 11(1), pages 17-28, January.
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    1. Tong Li & Zhidong Wei & Fei Jin & Yongjiu Yuan & Weiying Zheng & Lili Qian & Hongbo Wang & Lisha Hua & Juan Ma & Huanhuan Zhang & Huaduo Gu & Michael G. Irwin & Ting Wang & Steven Wang & Zuankai Wang , 2023. "Soft ferroelectret ultrasound receiver for targeted peripheral neuromodulation," Nature Communications, Nature, vol. 14(1), pages 1-11, December.

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