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Non-Self-Jamming Passive Telemetry with Sensor Integration

带传感器集成的无自干扰无源遥测

基本信息

批准号：
0928596
负责人：
Edwin Kan
金额：
$ 26万
依托单位：
Cornell University
依托单位国家：
美国
项目类别：
Standard Grant
财政年份：
2009
资助国家：
美国
起止时间：
2009-09-01 至 2012-08-31
项目状态：
已结题

来源：
https://www.nsf.gov/awardsearch/showAward?AWD_ID=0928596&HistoricalAwards=false
关键词：
Non Self Jamming Passive Telemetry

项目摘要

Many infrastructure challenges of national interest such as building integrity need new technology breakthroughs on the small ubiquitous sensors, operated in the passive radio-frequency identification (RFID) manner. This technology will cause great impact to embedded biomedical sensors as well. We propose such a microsystem that is composed of a broadband directional antenna and a nonlinear transmission line (NLTL) with application-specific sensing capacitors as the segment varactors. External inquisitive signal is received by the antenna and travels forth and back on NLTL with harmonic generation and phase-shift coding by the sensing capacitors. The output signal is transmitted in the harmonic frequency to avoid self jamming in the current RFID technology, which can significantly increase the bit rate of this miniaturized passive system. Two model systems with foot prints less than 20mm will be demonstrated: an acidity sensor for structural health monitoring and an embedded sensor for intra-ocular pressure (IOP) on hard contact lens. The design of the micro sensor system will be used as a lower-level undergraduate curriculum module to show that engineering directly touches people?s life. The misconception of society irrelevance of engineering has turned away many brilliant female and minority students from physical electronics careers.

许多涉及国家利益的基础设施挑战，如建筑物的完整性，需要在以无源射频识别（RFID）方式运行的小型无处不在的传感器上取得新的技术突破。这项技术也将对嵌入式生物医学传感器产生巨大的影响。我们提出了这样一个微系统，它是由一个宽带定向天线和一个非线性传输线（NLTL）与应用特定的传感电容作为段变容二极管。天线接收外部询问信号，通过感应电容产生谐波并进行相移编码，在非线性传输线上来回传输。输出信号在谐波频率中传输，以避免当前RFID技术中的自干扰，这可以显著提高这种小型化无源系统的比特率。两个模型系统的足迹小于20毫米将被证明：酸度传感器的结构健康监测和嵌入式传感器的眼内压（IOP）的硬接触透镜。微传感器系统的设计将作为一个较低层次的本科课程模块，以表明工程直接接触人？的生活。工程学与社会无关的误解使许多优秀的女性和少数民族学生放弃了物理电子专业。