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Optimization of data coils in a multiband wireless link for neuroprosthetic implantable devices
IEEE Transactions on Biomedical Circuits and Systems
|September 28, 2011
Summary
This study optimizes wireless power and data transfer for implantable neuroprosthetics using three carrier signals. Designs for transcutaneous links were simulated and measured, showing robustness against misalignment for improved device performance.
Area of Science:
- Biomedical Engineering
- Implantable Devices
- Wireless Communication
Background:
- High-performance implantable neuroprosthetic devices require reliable wireless power and data transmission.
- Existing transcutaneous links face challenges with interference and misalignment.
Purpose of the Study:
- To optimize a multiband transcutaneous wireless link for implantable neuroprosthetic devices.
- To evaluate different coil designs for minimizing interference and maximizing robustness.
Main Methods:
- Utilized three carrier signals for power, forward data, and back telemetry.
- Evaluated two forward data coil designs: perpendicular and planar figure-8.
- Simulated and measured coil performance against horizontal misalignments and rotations.
- Developed and tested a miniature spiral antenna for impulse-radio ultra-wideband (IR-UWB) back telemetry.
Main Results:
- Both perpendicular and figure-8 coil designs effectively minimized power carrier interference.
- The figure-8 coil design demonstrated superior robustness against various misalignments and rotations.
- Successful simulation and measurement of the IR-UWB antenna for back telemetry.
Conclusions:
- Optimized multiband transcutaneous wireless link design for neuroprosthetics.
- Identified optimal coil configurations for reliable power and data transfer.
- Demonstrated feasibility of IR-UWB for robust back telemetry in implantable systems.
