Design, Optimization and Fabrication of a 28.3...THz Nano-Rectenna for Infrared Detection and Rectification
KAUST DepartmentComputer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division
Integrated Microwave Packaging Antennas and Circuits Technology (IMPACT) Lab
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AbstractThe increasing energy demands of the world's population and the quickly diminishing fossil fuel reserves together suggest the urgent need to secure long-lasting alternative and renewable energy resources. Here, we present a THz antenna integrated with a rectifier (rectenna) for harvesting infrared energy. We demonstrate a resonant bowtie antenna that has been optimized to produce highly enhanced localized fields at the bow tip. To benefit from this enhancement, the rectifier is realized between the overlapped antenna's arms using a 0.7...nm copper oxide. The thin film diode offers low zero bias resistance of 500...?, thus improving the impedance matching with the antenna. In addition, the rectenna prototype demonstrates high zero bias responsivity (4...A/W), which is critical in producing DC current directly from THz signals without the application of an external electric source, particularly for energy harvesting applications.
CitationGadalla MN, Abdel-Rahman M, Shamim A (2014) Design, Optimization and Fabrication of a 28.3 THz Nano-Rectenna for Infrared Detection and Rectification. Sci Rep 4. doi:10.1038/srep04270.
PublisherNature Publishing Group
PubMed Central IDPMC3944318
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