Journal
IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES
Volume 62, Issue 12, Pages 3512-3521Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TMTT.2014.2364830
Keywords
Dual-band rectifier; energy harvesting; resistance compression network (RCN); wireless power transfer
Categories
Funding
- Spanish Ministry of Economy and Competitiveness
- FEDER [TEC2012-39143]
- COST Action Wireless Power Transmission for Sustainable Electronics (WIPE) [IC1301]
- Generalitat de Catalunya [2014 SGR 1551]
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In this work, the concept of dual-band resistance compression networks is introduced and applied to the design of rectifier circuits with improved performance. The use of resistance compression networks (RCNs) minimizes the sensitivity of rectifier circuits to variations in the surrounding environment, such as input power level and changes in the rectifier load. The proposed dual-band RCN can be used as the matching network located between the antenna and the rectifying element of a dual-band rectifier for energy harvesting applications. A dual-band (915 MHz/2.45 GHz) rectifier based on RCN is designed and characterized showing improved performance in comparison with a conventional dual-band envelope detector by exhibiting improved RF-dc conversion efficiency and reduced sensitivity versus output load and input power variations.
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