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Related Experiment Video

Updated: May 9, 2026

Construction of a Wireless-Enabled Endoscopically Implantable Sensor for pH Monitoring with Zero-Bias Schottky Diode-based Receiver
08:25

Construction of a Wireless-Enabled Endoscopically Implantable Sensor for pH Monitoring with Zero-Bias Schottky Diode-based Receiver

Published on: August 27, 2021

Power-efficient impedance-modulation wireless data links for biomedical implants.

S Mandal, R Sarpeshkar

    IEEE Transactions on Biomedical Circuits and Systems
    |July 16, 2013
    PubMed
    Summary
    This summary is machine-generated.

    This study presents a highly power-efficient wireless data link for biomedical implants using inductive coupling. The system achieves high uplink data rates with minimal power consumption, enabling advanced implantable devices.

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    Area of Science:

    • Biomedical Engineering
    • Wireless Communication
    • Implantable Devices

    Background:

    • Wireless data telemetry is crucial for implanted biomedical systems.
    • Existing systems often face challenges with power consumption and data rates.
    • Near-field inductive coupling offers a promising approach for implantable communication.

    Purpose of the Study:

    • To analyze the performance of a novel wireless data telemetry link for implanted biomedical systems.
    • To develop a power-efficient, high-bandwidth communication system for implantable devices.
    • To investigate the feasibility of using impedance modulation for uplink data transmission.

    Main Methods:

    • Experimental realization of a bidirectional half-duplex link using near-field inductive coupling.
    • Impedance modulation employed for high-bandwidth uplink data transmission.
    • Theoretical analysis of bit error rate (BER) performance, including edge asymmetry effects.

    Main Results:

    • Achieved uplink data rates of 2.8 Mbps at BER <10(-6) and 4.0 Mbps at BER 10(-3).
    • Demonstrated downlink data transfer rates up to 300 kbps.
    • Measured power consumption of 2.5 mW (external) and 100 μW (implanted), highlighting extreme power efficiency.
    • Confirmed theoretical predictions regarding impedance modulation's edge asymmetry effect.

    Conclusions:

    • The developed inductive data link offers a highly power-efficient solution for wireless telemetry in biomedical implants.
    • The system's performance, including high data rates and low power consumption, supports advanced implantable applications.
    • Compatibility with FCC regulations and demonstrated reliability make it suitable for practical implementation.