Banca de DEFESA: HUMBERTO PEREIRA DA PAZ

Uma banca de DEFESA de MESTRADO foi cadastrada pelo programa.
DISCENTE : HUMBERTO PEREIRA DA PAZ
DATA : 30/01/2020
HORA: 14:00
LOCAL: sala 301, 3º andar, Bloco B, Campus SA da Fundação Universidade Federal do ABC, localizada na Avenida dos Estados, 5001, Santa Terezinha, Santo André, SP
TÍTULO:

STUDY AND IMPLEMENTATION OF RADIO FREQUENCY RECTIFIERS FOR RECTENNAS

PÁGINAS: 82
GRANDE ÁREA: Engenharias
ÁREA: Engenharia Elétrica
SUBÁREA: Telecomunicações
ESPECIALIDADE: Teoria Eletromagnetica, Microondas, Propagação de Ondas, Antenas
RESUMO:

Radio frequency (RF) energy harvesting is a subfield of renewable ambient energy sources studies, which the goal is the study of electromagnetic to electric energy conversion, using the connection of antennas and rectifiers as a unique rectenna device for the development of energy self-sufficient circuits. Although there is an increasing demand for rectennas development, only a reduced number of papers describe feasible alternatives for low power density applications (µW/cm2 ). Aiming to fill this gap, this work studies rectennas explicitly for low-cost applications, using the 2.4 GHz ISM band with the WiFi technology as an energy source. In this work, RF rectifier topologies characteristics are studied, emphasizing input power levels below -10 dBm. According to it, two series rectifiers are designed, assembled, and measured using lumped and distributed filtering elements, parting from an input impedance matching network on an FR-4 substrate. The results describe the series rectifier with distributed elements with higher efficiency, resulting in a peak efficiency of 25% for -20 dBm, while the series lumped element rectifier reaches a peak efficiency of 20%. 

MEMBROS DA BANCA:
Presidente - Interno ao Programa - 1762419 - CARLOS EDUARDO CAPOVILLA
Membro Titular - Examinador(a) Interno ao Programa - 1671297 - MICHEL OLIVEIRA DA SILVA DANTAS
Membro Titular - Examinador(a) Externo ao Programa - 1760996 - DENISE CONSONNI
Membro Suplente - Examinador(a) Interno ao Programa - 1907748 - ALFEU JOAOZINHO SGUAREZI FILHO
Membro Suplente - Examinador(a) Externo à Instituição - HUMBERTO XAVIER DE ARAUJO - UFT