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Abstract
In recent years, a rapid development of low-power sensor networks, enabling machine-to-machine communication in applications such as environmental monitoring, has been observed. Contemporary sensors are normally supplied by an external power source, typically in a form of a battery, which limits their lifespan and increases the maintenance costs. This problem can be addressed by harvesting and converting ambient RF energy into DC power. In the paper, a novel dual-band rectifier circuit with high efficiency and enhanced bandwidth for RF energy harvesting applications is proposed along with its design procedure. The rectifier consists of two branches fed through a junction and two voltage doublers with a common DC output. The proposed structure is designed to work in 0.6 GHz to 1 GHz and 1.75 GHz to 2.45 GHz ranges with an average RFto-DC conversion efficiency of at least 50 percent. Compact dimensions of 19 mm × 17 mm (a footprint of only 345 mm2) have been obtained through appropriate folding of the impedance transformers. As demonstrated, the proposed design outperforms state-of-the-art rectifiers in terms of the operational bandwidth, efficiency, and the range of acceptable load impedances.
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- Publication version
- Accepted or Published Version
- License
- Copyright (2018 Warsaw Univ. of Technology, IEEE)
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Details
- Category:
- Conference activity
- Type:
- publikacja w wydawnictwie zbiorowym recenzowanym (także w materiałach konferencyjnych)
- Title of issue:
- 2018 22nd International Microwave and Radar Conference (MIKON) strony 161 - 164
- Language:
- English
- Publication year:
- 2018
- Bibliographic description:
- Karataev T., Bekasiewicz A., Kozieł S.: A novel dual-band rectifier circuit with enhanced bandwidth for RF energy harvesting applications// 2018 22nd International Microwave and Radar Conference (MIKON)/ : , 2018, s.161-164
- DOI:
- Digital Object Identifier (open in new tab) 10.23919/mikon.2018.8405165
- Verified by:
- Gdańsk University of Technology
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