期刊
IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES
卷 62, 期 4, 页码 1067-1073出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TMTT.2014.2304918
关键词
Energy scavenging; power harvesting; structural health monitoring; sustainable energy; wireless power transfer
资金
- National Institute of Standards and Technology (NIST) under the Technology Innovation Program (TIP)
Energy scavenging presents a promising approach for powering the wireless sensors used for structural health monitoring. RF energy scavenging has recently been intensively studied due to the abundance of ambient RF energy. In this paper, an RF scavenger operating at the AM frequency band has been fabricated and tested. The scavenger is composed of an RF front end and an energy processing circuit. The RF front-end design has been optimized for operation in low RF power densities. The energy processing circuit, which consist of a boost converter and a control circuit with low power overhead, requires a minimum input power of -39 dBm for proper operation.
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