Zobrazeno 1 - 6
of 6
pro vyhledávání: '"J. A. I. Araujo"'
Autor:
J. A. I. Araujo, M. R. T. Oliveira, P. H. B. Cavalcanti Filho, C. P. N. Silva, M. S. Coutinho, M. T. de Melo, Ignacio Llamas-Garro, A. G. Barboza
Publikováno v:
Journal of Microwaves, Optoelectronics and Electromagnetic Applications, Vol 20, Iss 4, Pp 834-854 (2021)
Abstract This paper presents a compact and planar reconfigurable filtenna for application in Wireless systems. The filtenna is composed of a UWB circular antenna and a filter with two trapezoidal resonators. The filter is integrated on the antenna fe
Externí odkaz:
https://doaj.org/article/e2f9365e9e8d4402970bf3703b76ebdc
Autor:
M. R. T. de Oliveira, Ignacio Llamas-Garro, M. S. Coutinho, J. A. I. Araujo, C. P. do N. Silva, M. T. de Melo
Publikováno v:
Journal of Electromagnetic Waves and Applications. 35:848-860
A planar sensor designed using the fourth Hilbert fractal curve iteration for solid material characterization at multiple frequencies is reported in this paper. The fractal curve is self-similar with space filling properties. The Hilbert fractal geom
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b991914e01a10c70e4e17f31884f48e9
https://doi.org/10.1080/09205071.2020.1861992
https://doi.org/10.1080/09205071.2020.1861992
Autor:
Ignacio Llamas-Garro, P. H. B. Cavalcanti Filho, L. M. da Silva, Manuelle R. T. de Oliveira, J. A. I. Araujo, M. S. Coutinho, M. T. de Melo
Publikováno v:
Journal of Sensors
r-CTTC. Repositorio Institucional Producción Científica del Centre Tecnològic de Telecomunicacions de Catalunya (CTTC)
Universitat Oberta de Catalunya (UOC)
Journal of Sensors, Vol 2020 (2020)
r-CTTC. Repositorio Institucional Producción Científica del Centre Tecnològic de Telecomunicacions de Catalunya (CTTC)
Universitat Oberta de Catalunya (UOC)
Journal of Sensors, Vol 2020 (2020)
This paper presents a planar and compact microwave resonator sensor to characterize materials. The geometry of the resonator is based on the Sierpinski fractal curve and has four poles in the frequency range from 0.5 GHz to 5.5 GHz. Any of the four p
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bfc114c2639fb8112822bf97240dad7c
https://doi.org/10.1155/2020/8830596
https://doi.org/10.1155/2020/8830596
Autor:
J. A. I. Araujo, Manuelle Oliveira, Pedro Cavalcanti Filho, C. P. N. Silva, Marcelo de Sá Coutinho, Marcos T. de Melo, Ignacio Llamas-Garro, A. G. Barboza
This paper presents a compact and planar reconfigurable filtenna for application in Wireless systems. The filtenna is composed of a UWB circular antenna and a filter with two trapezoidal resonators. The filter is integrated on the antenna feed line a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=od______2659::1039c0ff159b4a292a3e2ee8eb48638a
https://zenodo.org/record/7326690
https://zenodo.org/record/7326690
Autor:
Pedro H. B. Cavalcanti Filho, M. R. T. de Oliveira, M. T. de Melo, Francisco Ariaildo C. S. Lucena, Crislane P. N. Silva, J. A. I. Araujo
Publikováno v:
Microwave and Optical Technology Letters. 60:2103-2107
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ce7eb7caf0ade9f439f98628da1e0428
https://doi.org/10.1002/mop.31309
https://doi.org/10.1002/mop.31309
Autor:
M. T. de Melo, J. A. I. Araujo, M. R. T. de Oliveira, P. H. B. Cavalcanti Filho, Francisco Ariaildo C. S. Lucena, Ignacio Llamas-Garro, Crislane P. N. Silva, B. A. Kleinau
Publikováno v:
2019 SBMO/IEEE MTT-S International Microwave and Optoelectronics Conference (IMOC).
In this paper, a new frequency selective surface (FSS) for antenna gain enhancement is proposed. The antenna and FSS have an isosceles trapezium geometry. Three different versions of an antenna are created. For each version, the S-parameters S11 and
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::649cf9c85cebc95d4128b2f3bf20560b
https://doi.org/10.1109/imoc43827.2019.9317589
https://doi.org/10.1109/imoc43827.2019.9317589