基于超材料的无线激励微波微等离子体阵列源的研究
发布时间：2018-09-14 13:53
【摘要】：本课题由国家自然科学基金项目"小功率微波微等离子体的研究"(批准号:61072007)部分资助。超材料在宽频电磁吸收、太赫兹调制、热辐射探测和纳米光学成像、智能天线等领域具有极大的应用潜力。超材料的负磁导率特性,使得其非常适合作为微等离子体源的介质材料,可改善微波的传输效率,并且能产生高密度的微等离子体。而微等离子体可应用在材料表面处理、生物MEMS的消毒杀菌和等离子体显示等领域。因此在超材料表面产生微等离子体具有重要的研究意义。本文基于超材料的谐振吸波特性,根据微带谐振器理论和无线传输理论,对2.45GHz无线激励超材料微波微等离子体阵列源进行了探究,主要研究了发射部分为矩形贴片天线、接收部分分别为单开口谐振环(SSRR)和双开口谐振环(DSRR),发射部分为圆形贴片天线、接收部分分别为单开口谐振环(SSRR)和双开口谐振环(DSRR)等四种情况下微波微等离子体阵列源的S参数和电磁场分布等特性。仿真结果表明,发射与接收部分的间距、发射与接收的中心偏离距离、接收环的边长和各环之间的间距等对微波微等离子体阵列源的S参数、Q值和放电间隙处的电磁场分布等有很大的影响。本文工作对无线激励方式的大面积和非线性的微波微等离子体阵列源的研究提供了一定的参考。
[Abstract]:This project is partly supported by the National Natural Science Foundation of China, Research on low Power Microwave Microplasmas (Grant No.: 61072007). Metamaterials have great potential applications in broadband electromagnetic absorption, terahertz modulation, thermal radiation detection, nano-optical imaging, smart antennas and so on. The negative permeability of the supermaterial makes it very suitable for the dielectric material as a microplasma source, which can improve the transmission efficiency of microwave and produce high density microplasma. Microplasma can be used in surface treatment of materials, disinfection and sterilization of biological MEMS, plasma display and so on. Therefore, it is of great significance to produce microplasma on the surface of supermaterial. In this paper, based on the resonant absorbing characteristics of metamaterials, and based on the theory of microstrip resonator and wireless transmission theory, the 2.45GHz wireless excited microwave microplasma array source is studied. The transmitting part is rectangular patch antenna. The receiving part is a single open resonant ring (SSRR) and a double open resonant ring (DSRR), transmitting part is a circular patch antenna. The receiving part is the single open resonant ring (SSRR) and the double open resonant ring (DSRR). The S parameters and electromagnetic field distribution of the microwave microplasma array source are obtained. The simulation results show that the distance between the transmitting and receiving parts, the distance between the center of the transmitter and the receiver, The length of the receiving ring and the distance between the rings have great influence on the S parameter Q value of the microwave microplasma array source and the electromagnetic field distribution at the discharge gap. The work in this paper provides a reference for the study of large area and nonlinear microwave microplasma array sources with wireless excitation mode.
【学位授予单位】：华东师范大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TN820
[Abstract]:This project is partly supported by the National Natural Science Foundation of China, Research on low Power Microwave Microplasmas (Grant No.: 61072007). Metamaterials have great potential applications in broadband electromagnetic absorption, terahertz modulation, thermal radiation detection, nano-optical imaging, smart antennas and so on. The negative permeability of the supermaterial makes it very suitable for the dielectric material as a microplasma source, which can improve the transmission efficiency of microwave and produce high density microplasma. Microplasma can be used in surface treatment of materials, disinfection and sterilization of biological MEMS, plasma display and so on. Therefore, it is of great significance to produce microplasma on the surface of supermaterial. In this paper, based on the resonant absorbing characteristics of metamaterials, and based on the theory of microstrip resonator and wireless transmission theory, the 2.45GHz wireless excited microwave microplasma array source is studied. The transmitting part is rectangular patch antenna. The receiving part is a single open resonant ring (SSRR) and a double open resonant ring (DSRR), transmitting part is a circular patch antenna. The receiving part is the single open resonant ring (SSRR) and the double open resonant ring (DSRR). The S parameters and electromagnetic field distribution of the microwave microplasma array source are obtained. The simulation results show that the distance between the transmitting and receiving parts, the distance between the center of the transmitter and the receiver, The length of the receiving ring and the distance between the rings have great influence on the S parameter Q value of the microwave microplasma array source and the electromagnetic field distribution at the discharge gap. The work in this paper provides a reference for the study of large area and nonlinear microwave microplasma array sources with wireless excitation mode.
【学位授予单位】：华东师范大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TN820
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