Filter-based slow wave structures for application in chipless microwave RFID
Filter-based slow wave structures for application in chipless microwave RFID
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DOI：
10.1109/gemic.2015.7107754
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发表时间：
2015-03
期刊：
影响因子：
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通讯作者：
M. Nickel;C. Mandel;M. Schubler;R. Jakoby
中科院分区：
文献类型：
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作者：
M. Nickel;C. Mandel;M. Schubler;R. Jakoby
提出了一种在无芯片TDR RFID标签中实现延迟元件的新概念。它基于滤波器设计技术，旨在实现分散性较低和紧凑的设计。由于色散对ISI和相位失真有影响，因此色散的减小分别导致系统性能和读取范围的增加。这是第一次分析的帮助下，系统理论模拟。从本文所考虑的滤波器设计方法来看，巴特沃思方法最适合于此目的。一个自适应的巴特沃思滤波器的设计有关群延迟的设计要求。进行了滤波器设计，实现了具有低群延迟色散的延迟部分。最后，一个原型标签的实现和测量，以验证所设计的滤波器为基础的慢波结构的适用性无芯片TDR RFID标签。
A new concept for implementing delay elements in chipless TDR RFID tags is presented. It is based on filter design techniques and aims for less dispersive and compact designs. Since dispersion has influence on ISI and phase distortion, a reduction of the dispersion leads to an increase in the system's performance and the read range, respectively. This is first analyzed with the help of a system-theoretic simulation. From the filter design methods considered in this paper, the Butterworth method shows to be best suited for this purpose. An adaption of the Butterworth filter design regarding group delay design requirements is derived. A filter design is carried out and a delay section with low group delay dispersion is implemented. Finally, a prototype tag is realized and measured to verify the applicability of the designed filter-based slow wave structure for chipless TDR RFID tags.