Results 111 to 120 of about 533,787 (299)

CUDA-Based Particle Swarm Optimization in Reflectarray Antenna Synthesis

open access: yesAdvanced Electromagnetics, 2020
We show how reflectarray antenna synthesis can take profit from parallel computing on Graphics Processing Units (GPUs). The presented approach uses an implementation of Particle Swarm Optimization in CUDA language and accelerates the computation of the ...
A. Capozzoli, C. Curcio, A. Liseno
doaj   +1 more source

Analysis, Design and Applications of Reflectarrays [PDF]

open access: yes, 2008
A brief overview of reflectarray antennas mainly focused on some efficient analysis and design techniques and on recent developments has been presented.
Encinar Garcinuño, José Antonio
core  

Design, manufacture and measurement of a low-cost reflectarray for global earth coverage [PDF]

open access: yes, 2016
In this work a low-cost reflectarray with isoflux pattern for global Earth coverage is designed, manufactured and measured at 30GHz. The isoflux template is mathematically derived for a generic satellite and then particularized for a geostationary orbit.
Arrebola Baena, Manuel   +5 more
core   +2 more sources

Offset-fed microstrip reflectarray antenna

open access: yesElectronics Letters, 1994
A microstrip reflectarray fed with a feed horn offset at a given angle is demonstrated for the first time. The phase considerations for an offset feed horn are applied to a 12 element array of rectangular microstrip patch antennas, operating in X-band, allowing accurate predictions of the redirected radiation based on the offset angle of the feed horn.
R.D. Javor, X.-D. Wu, K. Chang
openaire   +1 more source

A high gain and high radiation efficiency optical transparent Fabry–Perot cavity antenna

open access: yesElectronics Letters, Volume 60, Issue 8, April 2024.
A novel high gain, high efficiency optically transparent Fabry–Perot Cavity antenna operating in millimetre‐wave is proposed. The antenna employs dual layers of transparent reflective surfaces and a transparent electromagnetic band gap ground to enhance the work band and obtain a high gain radiation.
Kang An, Peng Sun, Aixin Chen
wiley   +1 more source

Design of Folded Reflectarray Antennas Using Pancharatnam-Berry Phase Reflectors

open access: yesIEEE Access, 2018
In this paper, a folded reflectarray antenna (FRA) is developed using a crossed-dipole based reflector. By using the Pancharatnam–Berry phase theory, it is theoretically demonstrated that the crossed-dipole based reflector is capable of providing both 90°
Xin Liu   +3 more
semanticscholar   +1 more source

The contribution of Julien Perruisseau-Carrier to reconfigurable reflectarray antennas [PDF]

open access: yes, 2015
An invited talk on the Contribution of Julien Perruisseau-Carrier to Reconfigurable Reflectarray ...
Encinar Garcinuño, Jose Antonio   +2 more
core  

Application of bifocal concept to dual reflectarray configurations for multi-beam satellite antennas in Ka-band [PDF]

open access: yes, 2017
This contribution describes the design of a multi-beam dual reflectarray antenna for operation in transmission in Ka-band (20 GHz). The bifocal design concept has been used to obtain an improved performance for the off-axis beams with respect to the ...
Encinar Garcinuño, José Antonio   +6 more
core   +1 more source

Analysis of the Serrated Ground Plane for a Low-Loss Reflectarray Antenna

open access: diamond, 2021
Jiawei Ren   +3 more
openalex   +1 more source

Tunable Liquid Crystal Based Phase Shifter with a Slot Unit Cell for Reconfigurable Reflectarrays in F-Band

open access: yesApplied Sciences, 2018
An electrically tuned phase shifter based on the single slot unit cell and liquid crystal for a reconfigurable reflectarray antenna was presented. The simulation and measured results obtained at the F-band were used to demonstrate that the dielectric ...
Sheng Gao   +7 more
doaj   +1 more source

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