Research Grants 22/10876-0 - Teoria eletromagnética, Micro-ondas - BV FAPESP
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Contributions to rectennas and the use of 5G technology in the RF energy harvesting context

Abstract

Currently, the use of alternative energy sources has provided several technological advances in the area of low power wireless devices, motivated by the elimination of power cables, supercapacitors, and batteries, which in many cases, command the useful life of the devices, thus increasing their maintenance and recharging periods. Consequently, researches to increase the feasibility, the range, and to improve the use of these sources, extracting the maximum of their advantages, are in evidence, motivating studies and technical developments in several areas of knowledgement. Among the possible alternatives, the Radio Frequency Energy Harvesting, using rectennas to capture the electromagnetic energy in the ambient, has been increasing its position. In this context, strategies arise to increase the energy efficiency of the systems and devices. Thus, in this project to FAPESP, the contributions will be in two lines whose researches are completely open, being few explored in the literature in the context of RF Energy Harvesting. The first one will be in the analysis of the rectena behavior as function of temperature, studying and observing the performance variation, as well as, proposing solutions to improve the power transfer, based on the use of a temperature adaptive matching network on the RF rectifier. On the other hand, the second one will focus on the study of the 5G technology application, focusing on Non-Orthogonal Multiple Access (NOMA). In this way, we aim to take some steps in searching of self-sufficiency for wireless communication systems, in a modern context, focusing with alternative energy sources applied to low-power electronic devices. (AU)

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Scientific publications (6)
(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)
DINIZ, RENAN; DA SILVA, VINICIUS SANTANA; DA PAZ, HUMBERTO PEREIRA; TREVISOLI, RENAN; CASELLA, IVAN ROBERTO SANTANA; CAPOVILLA, CARLOS EDUARDO. Proposal of a 2.4 GHz Rectifier With Temperature Range Trimming for Low-Power RF Energy Harvesting. IEEE ACCESS, v. 12, p. 10-pg., . (19/25866-7, 22/08737-1, 22/10876-0)
SILVA, VINICIUS S.; PAZ, HUMBERTO P.; CASELLA, IVAN R. S.; CAPOVILLA, CARLOS E.; YAGOUB, MUSTAPHA C. E.. Design of a 915 MHz SWIPT Integrated Receiver Based on Intermodulated Signals. 2023 SBMO/IEEE MTT-S INTERNATIONAL MICROWAVE AND OPTOELECTRONICS CONFERENCE, IMOC, v. N/A, p. 3-pg., . (19/25866-7, 22/10876-0)
SOUSA, FERNANDO SIMPLICIO; CASELLA, IVAN ROBERTO SANTANA; CAPOVILLA, CARLOS EDUARDO. Uplink Performance of Massive LoRaWAN. 2023 SBMO/IEEE MTT-S INTERNATIONAL MICROWAVE AND OPTOELECTRONICS CONFERENCE, IMOC, v. N/A, p. 3-pg., . (22/08737-1, 22/10876-0)
SANTANA CASELLA, IVAN ROBERTO; VALDES CAMBERO, EDUARDO VICENTE; LOPES JUNIOR, CELESTINO MENDES; MENDES, RENAN RODRIGUES; CAPOVILLA, CARLOS EDUARDO. Analysis of LoRa Energy Autonomy Extension using a Photovoltaic Power Supply System. 2023 SBMO/IEEE MTT-S INTERNATIONAL MICROWAVE AND OPTOELECTRONICS CONFERENCE, IMOC, v. N/A, p. 3-pg., . (22/08737-1, 22/10876-0)
DA PAZ, HUMBERTO PEREIRA; DA SILVA, VINICIUS SANTANA; DINIZ, RENAN; TREVISOLI, RENAN; CAPOVILLA, CARLOS EDUARDO; CASELLA, IVAN ROBERTO SANTANA. Temperature Analysis of Schottky Diodes Rectifiers for Low-Power RF Energy Harvesting Applications. IEEE ACCESS, v. 11, p. 11-pg., . (19/25866-7, 22/10876-0, 22/11160-8)
TREVISOLI, RENAN; LIMA, LICIA S. C.; DA PAZ, HUMBERTO P.; DORIA, RODRIGO T.; CASELLA, IVAN R. S.; CAPOVILLA, CARLOS E.. Evolutionary algorithm for minimizing the temperature influence of low power RF Energy Harvesting circuits. MICROELECTRONICS JOURNAL, v. 147, p. 10-pg., . (22/10876-0)