EM- and piezo-scavengers: Two useful solutions in highly humanized scenarios toward a "greener world"
EM- and piezo-scavengers: Two useful solutions in highly humanized scenarios toward a "greener world"
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EM 和压电清除器：高度人性化场景中迈向“绿色世界”的两种有用解决方案
DOI：
10.1109/imws.2012.6215829
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发表时间：
2012
期刊：
影响因子：
--
通讯作者：
L. Roselli
中科院分区：
文献类型：
--
作者：
A. Costanzo;L. Roselli
这篇文章讨论了与EM和压电清道夫从环境能源，是非常有前途的超低功率电子系统的最新发展的电源供应商的不同方面。讨论了微波环境能量收集电路和系统设计中的第一个挑战。给出了射频/微波接收机和基带转换模块的设计流程。低至几μW/cm 2的功率密度被作为目标，作为由高效多频带谐振整流天线清除的现实源。给出了稳态区的预测和测量结果，并对实测转换能量进行了评估。其次，传统的压电清道夫进行了测试，作为一个游牧RFID阅读器的电源采用新的定位系统的方法。后者旨在作为多学科（RFID-NFC，超低功率系统，短距离无线功率传输，有机技术等），完全自主（车载能量收集器，无电池），无线授权（多个无源标签由自主阅读器供电）的示例，朝着“绿色世界”发展的电子系统。
This contribution discusses different aspects related to EM- and piezo-scavengers from ambient energy that are very promising as power suppliers of the latest evolution of ultra-low power electronic systems. First challenges in designing circuits and systems for microwave ambient energy harvesting are discussed. A design flow, including the RF/Microwave receivers and the base-band conversion blocks is presented. Power densities as low as few μW/cm2 are targeted as realistic sources to be scavenged by a highly efficient multi-band resonant rectenna. Predicted and measured results in stationary regime are presented and the measured converted energy is also assessed. Second, a conventional piezoelectric scavenger is tested as a power source of a nomadic RFID-reader adopted for novel localization system approach. The latter is intended as an example of multidisciplinary (RFID-NFC, ultra-low power systems, short range wireless power transfer, organic technologies and so on), fully autonomous (energy scavenger on board, battery-less), wirelessly empowered (multitude of passive tags is energized by autonomous reader), evolutionary electronic system toward a “greener world”.