双极化RFID无芯片标签的研究与实现

发布时间：2018-05-07 03:42

本文选题：无芯片标签 + 频率选择表面　；参考：《大连海事大学》2017年硕士论文

【摘要】：作为5G三大应用场景之一的物联网业务拥有广阔的市场前景,射频识别(RFID)技术作为物联网中的关键技术也将发挥重大作用。标签是RFID系统重要组成部分,它的性能直接影响了系统的整体效益,传统RFID系统中的标签都含有芯片,标签的价格居高不下,因此研究低成本的无芯片标签具有重要意义。论文的主要任务是研究RFID系统中无芯片标签的设计方法,完成的主要工作如下:(1)设计并实现了一种编码容量为4比特的U型线极化RFID无芯片标签,采用HFSS仿真软件对标签结构进行了仿真验证,并利用频率选择表面原理对标签的性能进行进一步的完善,最后确定了标签的最佳结构参数,对实物进行了加工和测试。(2)设计并实现了一种编码容量为8比特的双极化RFID无芯片标签,该标签是在线极化标签的结构基础上进行改进,标签能工作于水平极化和垂直极化两种状态,并且这两种工作方式互不干扰,有效地提高了标签的编码效率。同样采用HFSS仿真软件对标签进行仿真,将频率选择表面原理运用于完善标签的性能,确定标签的结构参数。然后对设计的标签进行了实物加工和测试。(3)设计了一种编码容量为3比特的圆极化RFID无芯片标签,标签工作于左旋圆极化和右旋圆极化状态,因此标签对入射波的入射角度不敏感,在实际应用中也有更好的实用价值。采用CST仿真软件对设计的标签结构进行了仿真优化,采用频率选择表面原理对标签的性能进行完善,最后对所设计的三款标签进行了比较。
[Abstract]:As one of the three application scenarios of 5G, Internet of things (IoT) business has a broad market prospect, and RFID RFID-technology will play an important role as the key technology in IOT. Tag is an important part of RFID system, its performance directly affects the overall efficiency of the system. The traditional RFID system labels contain chips, and the price of tags is high. Therefore, it is of great significance to study low cost non-chip labels. The main task of this paper is to study the design method of chipless label in RFID system. The main work is as follows: 1) Design and implement a 4-bit U-shaped line-polarized RFID chip free label. HFSS simulation software is used to verify the label structure, and the performance of the label is further improved by using the principle of frequency selection surface. Finally, the optimal structural parameters of the label are determined. A dual-polarization RFID chip free label with coding capacity of 8 bits is designed and tested. The label is improved on the basis of the structure of on-line polarization tag. The label can work in both horizontal and vertical polarization states, and these two working modes do not interfere with each other, so the coding efficiency of the tag is improved effectively. The HFSS simulation software is also used to simulate the label. The principle of frequency selection surface is applied to improve the performance of the label and the structural parameters of the label are determined. Then, the designed label is processed and tested. (3) A 3 bit circular polarized RFID chip free label is designed. The label works in the left circle polarization and the right circle polarization state. So the tag is insensitive to the incidence angle of incident wave and has better practical value in practical application. The label structure is simulated and optimized by using CST simulation software, and the performance of the label is improved by the principle of frequency selection surface. Finally, the three labels are compared.
【学位授予单位】：大连海事大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TP391.44

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