A Simultaneous Wireless Power and Full-Duplex Data Transfer System Over a Single Inductive Link Achieving 17/3.4Mb/s and 61.1% Efficiency for Miniature Biomedical Implants

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A Simultaneous Wireless Power and Full-Duplex Data Transfer System Over a Single Inductive Link Achieving 17/3.4Mb/s and 61.1% Efficiency for Miniature Biomedical Implants

Conference Paper (2026)

Author(s)

Tianqi Lu (TU Delft - Electrical Engineering, Mathematics and Computer Science)

Sijun Du (TU Delft - Electrical Engineering, Mathematics and Computer Science)

Research Group

Electronic Instrumentation

DOI related publication

https://doi.org/10.1109/ISSCC49663.2026.11409287 Final published version

To reference this document use

https://resolver.tudelft.nl/uuid:100ce6f1-225e-4270-9910-dada40c57ce4

More Info

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Publication Year

2026

Language

English

Research Group

Electronic Instrumentation

Pages (from-to)

72-74

Publisher

IEEE

ISBN (electronic)

9798331589363

Event

2026 IEEE International Solid-State Circuits Conference, ISSCC 2026 (2026-02-15 - 2026-02-19), San Francisco, United States

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Abstract

A single-link wireless power and full-duplex data transfer system is presented. Operating at 40.68MHz, it delivers >50mW maximum output power with 61.1% peak end-to-end efficiency while supporting 17Mb/s uplink using resonance-length keying (RLK) and 3.4Mb/s downlink using instant-carrier-suspension keying (Instant-CSK). The design removes ASK/LSK trade-offs and achieves an aggregate data rate of half the carrier frequency using 180nm TX/RX chips and 15-/8-mm-diameter coils.

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