Higher order pulse modulators for time domain chipless RFID tags with increased information density
Higher order pulse modulators for time domain chipless RFID tags with increased information density
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DOI：
10.1109/eumc.2015.7345709
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发表时间：
2015-12
期刊：
影响因子：
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通讯作者：
C. Mandel;M. Schubler;M. Nickel;B. Kubina;R. Jakoby;Maximilian Popperl;M. Vossiek
中科院分区：
文献类型：
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作者：
C. Mandel;M. Schubler;M. Nickel;B. Kubina;R. Jakoby;Maximilian Popperl;M. Vossiek
本文介绍了三种用于完全电磁无芯片时域 RFID 标签的新型无源相位调制器。该调制器克服了早期方法的局限性，并允许大幅增加信号空间覆盖范围，从而实现高阶 PSK 或 QAM 方案。所有三种调制器均经过理论研究，并在具有 4 个调制级的可重构原型标签上实际实现了 16-PSK，从而实现了 16 位信息内容。除了显示测量结果之外，还仔细比较了三种方法的优点和缺点，并且所实现的信息密度与文献中的方法相关。
This paper introduces three novel passive phase modulators for entirely electromagnetic chipless time domain RFID tags. The modulators overcome limitations of earlier approaches and allow for a highly increased signal space coverage, and, therefore, the implementation of high order PSK or QAM schemes. All three modulators are studied in theory and practically implemented up to a 16-PSK on a reconfigurable prototype tag with 4 modulation stages, realizing a 16 bit information content. Besides showing the measurement results, the assets and drawbacks of the three approaches are carefully compared and the achieved information density is related with approaches from literature.