Optimization of a multiband wireless link for neuroprosthetic implantable devices

2008 IEEE Biomedical Circuits and Systems Conference Pub Date : 2008-11-01 DOI:10.1109/BIOCAS.2008.4696883

Uei-Ming Jow, Maysam Ghovanloo

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引用次数: 12

Abstract

In this paper we have presented the methodology and detailed simulation and measurement results for optimizing the coils that we have used in a new multiband wireless link for high performance implantable neural interfacing. In this method, three individual carrier signals and coil/antenna pairs have been dedicated to the major functions of the link: power transmission, forward data transmission from outside into the body, and back telemetry from inside towards outside. Wireless power is transmitted through printed spiral coils, optimized for carriers operating at 5, 10, and 13.56 MHz. Two different designs have been evaluated for forward data coils. One is a pair of 3-D vertical coils that are wound perpendicular to the power PSCs, and the other is a pair of planar figure-8 coils that are in parallel with the power PSCs. We have compared these designs with respect to their robustness against worst case horizontal misalignments. Finally, measurements are done on a miniature spiral antenna that is designed to operate in an ultra wideband (UWB) spectrum for short range back telemetry across the skin.

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神经假体植入式装置多波段无线链路的优化

在本文中，我们提出了优化线圈的方法和详细的仿真和测量结果，我们已经在一个新的多波段无线链路中用于高性能植入式神经接口。在这种方法中，三个单独的载波信号和线圈/天线对专门用于链路的主要功能:电力传输，从外部向体内的前向数据传输，以及从内部向外部的反向遥测。无线电力通过印刷螺旋线圈传输，该线圈针对工作频率为5、10和13.56 MHz的载波进行了优化。对正向数据线圈的两种不同设计进行了评估。一个是一对垂直缠绕在电源psc上的三维垂直线圈，另一个是一对平行于电源psc的平面数字8线圈。我们比较了这些设计对最坏情况下水平错位的鲁棒性。最后，测量是在一个微型螺旋天线上完成的，该天线被设计为在超宽带(UWB)频谱下工作，用于在皮肤上进行短距离遥测。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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2008 IEEE Biomedical Circuits and Systems Conference

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