Solar/EM energy harvester for autonomous operation of a monitoring sensor platform
| Autor: | Francesco Giuppi, Kyriaki Niotaki, Ana Collado, Apostolos Georgiadis |
|---|---|
| Rok vydání: | 2014 |
| Předmět: |
Computer Networks and Communications
business.industry Computer science Energy conversion efficiency Electrical engineering Energy Engineering and Power Technology Slot antenna Energy harvester law.invention Radio frequency signal Rectenna Rectification law Electrical and Electronic Engineering business Waveguide Energy (signal processing) |
| Zdroj: | Wireless Power Transfer. 1:44-50 |
| ISSN: | 2052-8418 |
| Popis: | In this paper, a hybrid solar/electromagnetic (EM) energy harvester that operates at 2.45 GHz is presented. The proposed harvester integrates the solar cells in the same area as the rectenna element obtaining a compact implementation. The radiating element that forms part of the rectenna is a cavity-backed slot antenna based on substrate-integrated waveguide technology, which allows for a compact, single substrate implementation. The radiating element is connected to a circuit that provides both the rectification of the incoming EM signals and the collection of DC energy coming from solar cells. A single-substrate prototype has been implemented, demonstrating an overall power conversion efficiency up to 30%, depending on the incoming radio frequency signal level and the ambient light conditions. |
| Databáze: | OpenAIRE |
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