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RFID-Inspired Miniature Nntennas for Circular Polarization Tags and Brain-Machine Interface Applications.

机译:受RFID启发的微型极化天线,用于圆极化标签和脑机接口应用。

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摘要

Radio frequency identification (RFID) technology in the ultra-high frequency (UHF) band has become the mainstream applications that help the speed of handling manufactured goods and materials in recent years. The mechanism of RFID backscattering technique has also been utilized for many novel wireless sensing applications, such as remote health sensing, and biomedical signal recoding. In an RFID system, the tag antenna plays a key role in the overall system performance. In this sense, the study of novel tag antenna design with compact size and circular polarization (CP) characteristics is necessary to achieve miniature and highly-sensitive RFID systems. In the first part of the thesis, we present a CP cross-dipole RFID tag antenna with miniature design. The CP mode is excited by two orthogonal dipoles with 90 degree phase delay between each other. Impedance matching is achieved using a matching structure of T-match meander line. In the second part of the thesis, we present an optimized implantable antenna transferring power and data efficiently with a low profile external transmitting antenna by utilizing RFID backscattering technique. We characterize the coupling enhancement by simulating the wireless link with head models. Prototypes are measured and characterized in terms of absorption level and channel capacity. The proposed antenna system provides wireless and fully-passive solution for multichannel neural recording systems.
机译:近年来,超高频(UHF)频带中的射频识别(RFID)技术已成为主流应用程序,有助于提高处理制成品和材料的速度。 RFID反向散射技术的机制也已用于许多新颖的无线传感应用中,例如远程健康传感和生物医学信号记录。在RFID系统中,标签天线在整个系统性能中起着关键作用。从这个意义上讲,具有紧凑尺寸和圆极化(CP)特性的新型标签天线设计的研究对于实现小型且高度灵敏的RFID系统是必要的。在论文的第一部分,我们提出了一种具有微型设计的CP交叉偶极RFID标签天线。 CP模式由两个彼此之间具有90度相位延迟的正交偶极子激发。阻抗匹配是使用T匹配曲折线的匹配结构实现的。在论文的第二部分中,我们提出了一种优化的可植入天线,该天线通过利用RFID背向散射技术利用薄型外部发射天线有效地传输功率和数据。我们通过模拟具有头部模型的无线链路来表征耦合增强。根据吸收水平和通道容量对原型进行测量和表征。拟议的天线系统为多通道神经记录系统提供了无线和全无源的解决方案。

著录项

  • 作者

    Song, Lingnan.;

  • 作者单位

    University of California, Los Angeles.;

  • 授予单位 University of California, Los Angeles.;
  • 学科 Electrical engineering.;Biomedical engineering.
  • 学位 M.S.
  • 年度 2016
  • 页码 97 p.
  • 总页数 97
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

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