A Survey of RF Energy Harvesting Circuits
C. Achille Fumtchum1, Pierre Tsafack2, Florin Hutu3, Guillaume Villemaud4, Emmanuel Tanyi5

1Achille Fumtchum*, Faculty of Engineering and Technology, University of Buea, Buea, Cameroon.
2Pierre Tsafack, Faculty of Engineering and Technology, University of Buea, Buea, Cameroon.
3Florin Hutu, Univ Lyon, INSA Lyon, INRIA, CITI, F-69621, Villeurbanne, France.
4Guillaume Villemaud, Univ Lyon, INSA Lyon, INRIA, CITI, F-69621, Villeurbanne, France.
5Emmanuel Tanyi, Faculty of Engineering and Technology, University of Buea, Buea, Cameroon.

Manuscript received on May 10, 2021. | Revised Manuscript received on May 24, 2021. | Manuscript published on May 30, 2021. | PP: 99-106 | Volume-10 Issue-7, May 2021 | Retrieval Number: 100.1/ijitee.G89440510721| DOI: 10.35940/ijitee.G8944.0510721
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© The Authors. Blue Eyes Intelligence Engineering and Sciences Publication (BEIESP). This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/)

Abstract: The aim of this work is, on one hand, to review the state of the art of the architectures and diodes used in radio-frequency energy harvesting systems, the idea here is to review the most recent works, as well as their characteristics, which include frequency, type of diode used, topology, maximum efficiency and corresponding power, and on the other hand to carry out simulations to determine the most appropriate case for any further work in the field. After having determined the most common topologies, we used the main known radio-frequency diodes to characterize them in a first step, clearly a process of comparing the results of the simulations of the different topologies is done by initially considering an identical frequency. and afterward determine the effect of frequency band on their conversion efficiency. 
Keywords: RF Energy Harvesting Topologies; Conversion Efficiency; Wireless Power Transfer; Telecommunications; Circuits And Systems.