Zobrazeno 1 - 10
of 124
pro vyhledávání: '"Manuel Arrebola"'
Publikováno v:
IEEE Open Journal of Antennas and Propagation, Vol 5, Iss 4, Pp 1095-1107 (2024)
In this article, two multibeam reflectarray antennas are presented for Ka-band in a multi-feed configuration. Both feature a wide-angle scanning range with very low scan losses. They are designed using an iterative optimization process based on a pha
Externí odkaz:
https://doaj.org/article/75387dd960fd42b9a6faaba95218db6a
Publikováno v:
IEEE Open Journal of Antennas and Propagation, Vol 5, Iss 2, Pp 507-515 (2024)
This work presents a reflectarray-based base station antenna to integrate both backhaul (BH) and fronthaul (FH). The reflectarray operates at 28 GHz in dual linear polarization, using one polarization for the BH and another for the FH. The BH is a pe
Externí odkaz:
https://doaj.org/article/b8f6eea1305841d0926c976f6ab98c2f
Publikováno v:
Scientific Reports, Vol 13, Iss 1, Pp 1-9 (2023)
Abstract A wideband dual-reflector 3D-printed antenna is proposed to operate in the mm-Wave band. The design is based on a Cassegrain reflector optics but including a dielectric piece for merging the feeding system and the support structure of the su
Externí odkaz:
https://doaj.org/article/67d5cc56e9574651962dda40b29f8c1b
Publikováno v:
IEEE Open Journal of Antennas and Propagation, Vol 4, Pp 847-859 (2023)
This paper presents investigations on reflectarray antennas using non-periodic element distributions. The study involves the analysis and design of two reflectarrays based on quasi-periodic lattices with rectangular and pentagonal profiles, whose per
Externí odkaz:
https://doaj.org/article/126aff74bd8c49fb9426fb3e5b86ccbe
Publikováno v:
IEEE Access, Vol 10, Pp 12580-12591 (2022)
In this paper, it is proposed the use of ultra-thin reflectarrays in some emerging scenarios in the new mm-wave cellular networks such as 5G, Beyond-5G (B5G), and future 6G. To that purpose, two dual-linear polarization reflectarrays are developed to
Externí odkaz:
https://doaj.org/article/3d59c3648e764f5682a2756bd473ea8c
Autor:
Nelson J. G. Fonseca, Sophie-Abigaël Gomanne, José Rico-Fernández, Petar Jankovic, Jaione Galdeano, Giovanni Toso, Piero Angeletti, Manuel Arrebola, Oscar Quevedo-Teruel
Publikováno v:
Sensors, Vol 23, Iss 14, p 6573 (2023)
This paper reports on the design and experimental validation of a fully-metallic double-ridged waveguide 10 × 10 Rotman lens additively manufactured as a single part. The wide band operation of this quasi-optical beamformer enables us to cover the u
Externí odkaz:
https://doaj.org/article/0180caa56fc14376aa92c42c9d3f6226
Publikováno v:
Scientific Reports, Vol 10, Iss 1, Pp 1-13 (2020)
Abstract One of the most ambitious projects in communications in recent years is the development of the so-called satellite mega-constellations. Comprised of hundreds or thousands of small and low-cost satellites, they aim to provide internet service
Externí odkaz:
https://doaj.org/article/e24492be0449404eb23be4b3f1fc31d0
Publikováno v:
IEEE Access, Vol 8, Pp 100712-100720 (2020)
A broadband spaceborne reflectarray with high polarization purity is proposed for Ultra High Definition TV (UHDTV) broadcasting for direct-to-home (DTH) applications. The provided bandwidth would allow to offer DTH and other services, while the enhan
Externí odkaz:
https://doaj.org/article/be744aa19bd5429c805046abbd7dee39
Publikováno v:
IEEE Access, Vol 8, Pp 209091-209100 (2020)
A dual-reflector antenna with a self-supported subreflector is proposed. The supporting structure is made of dielectric material and it is part of the feeding of the antenna, which is based on Cassegrain optics and works at X-band. The feeding subsys
Externí odkaz:
https://doaj.org/article/43ed0699ca524ab38be5f25cc44e22a3
Autor:
Alvaro F. Vaquero, Marcos Rodriguez Pino, Manuel Arrebola, Sergio A. Matos, Jorge R. Costa, Carlos A. Fernandes
Publikováno v:
IEEE Access, Vol 8, Pp 216185-216196 (2020)
In this work a dielectric planar lens is proposed to generate a Bessel beam. The lens works at Ka-band and produces a non-diffraction range within the Fresnel region of the antenna. The methodology to design the aperture antenna at millimetre or micr
Externí odkaz:
https://doaj.org/article/55e2b95b43094e109b29f766ef9f27d0