Development of Nano-based Passive Sensors for RF/Wireless Sensing Systems

PhamThe PI建议开发微波垂直排列的碳纳米管谐振器传感器，用于远程和无线化学检测。新开发的传感器是开发远程无线传感系统检测化学毒剂的关键部件。该传感器将由一个电磁谐振器和垂直排列的碳纳米管组成，用作化学换能器。碳纳米管谐振式传感器是一种无源传感器件，不需要功耗。无源传感器和零功耗解决了使用大量传感器节点的无线传感器网络发展中的挑战。非接触式传感器在禁止使用布线的应用中非常重要。微波碳纳米管谐振器传感器暴露在气体中时，谐振频率发生变化。将设计一组天线，并将其整合到碳纳米管谐振器传感器中，以与远程无线读取系统进行通信。他将开发一种远程无线阅读系统来探测传感器。本研究的主要任务包括：(1)研制用于化学物质检测的微波碳纳米管谐振式传感器，以及(2)研制一种使用高达20 GHz的微波碳纳米管谐振式传感器的无线遥感系统。更广泛的影响：传感器的进步是国家的需要，在医疗保健、食品工业、化学工业、环境监测和国家安全方面有着广泛的应用。化学毒剂的远程检测在无线传感器网络的发展中尤为重要和关键。在禁止使用电线的应用中，远程检测至关重要。底层的感知机制是被动的，这种传感器对于使用大量传感器节点的无线网络的电源管理至关重要。该传感器可以集成在印刷电路板上，用于实际应用。这项研究将增进对气体分子、其环境和微波电磁信号之间相互作用的理解。新出现的碳纳米管材料的使用将为开发能够检测新的有毒和生物制剂的传感器打开许多可能性。初级教育的目标是吸引国内学生考生攻读研究生课程，特别是博士研究。他的计划是开发结合传统微波工程、生命科学和纳米技术的跨学科项目。这一结合将提供丰富、令人兴奋和新颖的研究项目，对研究生具有吸引力。

0401375PhamThe PI is proposing to develop microwave vertically aligned carbon nanotube resonator sensor for remote and wireless chemical detection. The newly developed sensor is the key component in development of a remote wireless sensing system to detect chemical agents. The sensor will consist of an electromagnetic resonator integrated with vertically aligned carbon nanotubes used as a chemical transducer. The carbon nanotube resonator sensor is a passive sensing device and requires no power consumption. Passive sensor and zero power consumption address the challenges in the development of wireless sensor networks that employ numerous sensor nodes. The contactless sensor is important in applications that prohibit the use of wiring. The microwave carbon nanotube resonator sensor exhibits changes in resonant frequency when exposed to gasses. An array of antennas will be designed and incorporated into the carbon nanotube resonator sensor to communicate with a remote wireless reading system. He will develop a remote wireless reading system to probe the sensor. The major tasks of this research include: (1) development of microwave carbon nanotube resonator sensor to detect chemical agents, and (2) development of a wireless remote sensing system using microwave carbon nanotube resonator sensors up to 20 GHz. Broader Impact: The advancement of sensors is a national need with broad ranges of applications in health care, the food industry, chemical industry, environmental monitoring and national security. The detection of chemical agents remotely is particular importance and a critical element in the development of wireless sensor networks. The remote detection is crucial in applications where wires are prohibited. The underlying sensing mechanism is passive, and such sensors are critical to power management of wireless networks that use numerous sensor nodes. The sensor can be integrated on a printed circuit board for practical applications. The research will enhance the understanding of the interaction occurring between gas molecules, their environment, and microwave electromagnetic signals. The use of emerging carbon nanotube materials will open numerous possibilities for the development of sensors that can detect new toxic and biological agents. The primary education goal is to attract domestic student candidates to pursue graduate studies, especially doctoral research. His plan is to develop interdisciplinary projects that combine traditional microwave engineering, life science and nanotechnologies. This combination will provide rich, exciting, and novel research projects that will be attractive to graduate students.