Zobrazeno 1 - 10
of 10
pro vyhledávání: '"Hugo Rodrigues Dias Filgueiras"'
Autor:
Hugo Rodrigues Dias Filgueiras, Tiago Henrique Brandao, Luiz Augusto Melo Pereira, Arismar Cerqueira Sodre Junior
Publikováno v:
IEEE Open Journal of Antennas and Propagation, Vol 4, Pp 294-302 (2023)
This work proposes a methodology for evaluating the antenna array diversity and resultant radiation pattern from digitally-processed-based beamforming systems. Our approach enables to interpret the advanced antenna systems (AAS) coverage and massive
Externí odkaz:
https://doaj.org/article/378a1ae6f3474203aa1203e0ddb2c94b
Autor:
Hugo Rodrigues Dias Filgueiras, Eduardo Saia Lima, Matheus Seda Borsato Cunha, Celso Henrique De Souza Lopes, Leticia Carneiro De Souza, Ramon Maia Borges, Luiz Augusto Melo Pereira, Tiago Henrique Brandao, Tomas Powell Villena Andrade, Luciano Camilo Alexandre, Geraldo Neto, Agostinho Linhares, Luciano Leonel Mendes, Murilo Araujo Romero, Arismar Cerqueira S.
Publikováno v:
IEEE Access, Vol 11, Pp 9232-9259 (2023)
The sixth generation of mobile communication (6G) systems is recently rising a lot of interest, introducing new futuristic and challenging use cases that will demand much more than just communications to become a reality. Higher throughput, lower lat
Externí odkaz:
https://doaj.org/article/c2b1453a8df84660b7cd81af39593cf5
Autor:
Hugo Rodrigues Dias Filgueiras, Eduardo Saia Lima, Tiago Henrique Brandao, Arismar Cerqueira S.
Publikováno v:
IEEE Open Journal of Antennas and Propagation, Vol 2, Pp 72-78 (2021)
This article reports the implementation and coverage map of a mm-waves femtocell, using a high-gain omnidirectional twisted slotted-waveguide antenna array (SWAA). The twisted SWAA provides 14.7 dBi gain and 1.1-GHz bandwidth in the frequency range 2
Externí odkaz:
https://doaj.org/article/d5ef5c24e86b4b87af21bb4581c171e9
Autor:
Eduardo Saia Lima, Ramon Maia Borges, Luiz Augusto Melo Pereira, Hugo Rodrigues Dias Filgueiras, Antonio Marcos Alberti, Arismar Cerqueira Sodre
Publikováno v:
IEEE Access, Vol 8, Pp 44381-44390 (2020)
We propose and report the implementation of a multiband and photonically amplified fiber-wireless (FiWi) Xhaul based on radio over fiber (RoF) technology and four-wave mixing (FWM) nonlinear effect, aiming 5G applications. The proposed ultra-wideband
Externí odkaz:
https://doaj.org/article/83f220d011f84245b6fd6f9c8e5e4eec
Autor:
Hugo Rodrigues Dias Filgueiras, Ramon Maia Borges, Marcello Caldano Melo, Tiago Henrique Brandao, Arismar Cerqueira Sodre
Publikováno v:
IEEE Access, Vol 7, Pp 112578-112587 (2019)
This work reports the concept and implementation of a dual-band wireless fronthaul (FH), using a frequency selective surface (FSS)-based focal-point/Cassegrain antenna, assisted by an optical midhaul (MH). Our innovative fiber-wireless architecture e
Externí odkaz:
https://doaj.org/article/61c0b276559f430d89e8eaff41451ab6
Autor:
Hugo Rodrigues Dias Filgueiras, James R. Kelly, Pei Xiao, I. F. da Costa, Arismar Cerqueira Sodré
Publikováno v:
International Journal of Antennas and Propagation, Vol 2019 (2019)
This manuscript presents a novel approach for designing wideband omnidirectional slotted-waveguide antenna arrays, which is based on trapezoidal-shaped slots with two different electrical lengths, as well as a twisted distribution of slot groups alon
Externí odkaz:
https://doaj.org/article/f5f431d8e8904514bcad2b9ee595aefe
Autor:
Arismar Cerqueira Sodré, Igor Feliciano da Costa, Renan Alves dos Santos, Hugo Rodrigues Dias Filgueiras, Danilo Henrique Spadoti
Publikováno v:
International Journal of Antennas and Propagation, Vol 2018 (2018)
This work reports the development of two high-performance waveguide-based antenna arrays for 5G cellular networks, operating in the underutilized millimetre wave (mm-wave) frequency spectrum. Two different scenarios of mm-wave communications are prop
Externí odkaz:
https://doaj.org/article/93d96b3552e745758942d606ecbdbab3
Publikováno v:
IEEE Antennas and Wireless Propagation Letters. 21:750-754
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f8852cdd03eed6434732b48ebcb87002
https://doi.org/10.1109/lawp.2022.3144916
https://doi.org/10.1109/lawp.2022.3144916
Autor:
J. R. Mejía-Salazar, Arismar Cerqueira Sodré Junior, Jéssica A. P. Ribeiro, Hugo Rodrigues Dias Filgueiras, Felipe Beltran-Mejia
Publikováno v:
Sensors, Vol 21, Iss 8014, p 8014 (2021)
Sensors (Basel, Switzerland)
Sensors (Basel, Switzerland)
We demonstrate a concept for a large enhancement of the directivity and gain of readily available cm- and mm-wave antennas, i.e., without altering any property of the antenna design. Our concept exploits the high reflectivity of a Bragg reflector com
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::de3585160359b9b09a11fdd38445364e
https://www.mdpi.com/1424-8220/21/23/8014
https://www.mdpi.com/1424-8220/21/23/8014
Publikováno v:
Anais de XXXVIII Simpósio Brasileiro de Telecomunicações e Processamento de Sinais.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::57af44200db8307d87d997584612fe9c
https://doi.org/10.14209/sbrt.2020.1570639884
https://doi.org/10.14209/sbrt.2020.1570639884