On energy harvesting for augmented tags

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• 作者：Dahmane Allane^a ; ^b ; ^{allane.dahmane@hotmail.fr} ; Yvan Duroc^c ; Gianfranco Andia Vera^b ; Rachida Touhami^a ; Smail Tedjini^b
• 关键词：Energy harvesting ; RFID UHF ; Non-linearity ; Harmonics ; Sensor-tags
• 刊名：Comptes Rendus Physique
• 出版年：2017
• 出版时间：February 2017
• 年：2017
• 卷：18
• 期：2
• 页码：86-97
• 全文大小：1922 K
• 卷排序：18

文摘

In this paper, the harmonic signals generated by UHF RFID chips, usually considered as spurious effects and unused, are exploited. Indeed, the harmonic signals are harvested to feed a supplementary circuitry associated with a passive RFID tag. Two approaches are presented and compared. In the first one, the third-harmonic signal is combined with an external 2.45-GHz Wi-Fi signal. The integration is done in such a way that the composite signal boosts the conversion efficiency of the energy harvester. In the second approach, the third-harmonic signal is used as the only source of a harvester that energizes a commercial temperature sensor associated with the tag. The design procedures of the two “augmented-tag” approaches are presented. The performance of each system is simulated with ADS software, and using Harmonic Balance tool (HB), the results obtained in simulation and measurements are compared also.