High gain isotropic rectenna
In: 2017 IEEE Wireless Power Transfer Conference (WPTC) ; https://hal.science/hal-01722690 ; 2017 IEEE Wireless Power Transfer Conference (WPTC), May 2017, Taipei, Taiwan. pp.54-57, ⟨10.1109/WPT.2017.7953880⟩, 2017
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Best student paper award, session Rectenna Design ; International audience ; This paper introduces an original strategy to step up the capacity of ambient RF energy harvesters. The low rectification efficiency that comes from weak input power is enhanced through high gain antenna arrays that push the circuit to operate in a more efficient state. The prototype uses beam forming networks to build up a wide coverage since ambient energy can come from any direction, or the orientation of the rectenna may be unknown. By extending the operating range of rectifiers to higher input powers, the system operates as a very efficient narrow beam rectenna or as a synthetic high gain isotropic rectenna. The rectification efficiency pattern of one multi-beam rectenna, functioning in the 2.4 GHz band, is plotted and compared to a dipole rectenna's pattern. For a low incident power density of 4.10-5 mW.cm-2, the rectification efficiency is largely improved in any direction : from 2.6% with a dipole rectenna up to 14%.
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High gain isotropic rectenna
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| Autor/in / Beteiligte Person: | Vandelle, Erika ; Doan, Phi Long ; Bui, Do Hanh Ngan ; Vuong, T. P. ; Ardila, Gustavo ; Wu, Ke ; Hemour, Simon ; Institut de Microélectronique, Electromagnétisme et Photonique - Laboratoire d'Hyperfréquences et Caractérisation (IMEP-LAHC ) ; Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Université Savoie Mont Blanc (USMB Université de Savoie Université de Chambéry )-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes 2016-2019 (UGA 2016-2019 ) ; Poly-Grames ; École Polytechnique de Montréal (EPM) ; Laboratoire de l'intégration, du matériau au système (IMS) ; Université Sciences et Technologies - Bordeaux 1 (UB)-Institut Polytechnique de Bordeaux-Centre National de la Recherche Scientifique (CNRS) |
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| Zeitschrift: | 2017 IEEE Wireless Power Transfer Conference (WPTC) ; https://hal.science/hal-01722690 ; 2017 IEEE Wireless Power Transfer Conference (WPTC), May 2017, Taipei, Taiwan. pp.54-57, ⟨10.1109/WPT.2017.7953880⟩, 2017 |
| Veröffentlichung: | HAL CCSD ; IEEE, 2017 |
| Medientyp: | Konferenz |
| DOI: | 10.1109/WPT.2017.7953880 |
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