Results 11 to 20 of about 162,087 (215)
Radiation Analysis and Characteristics of Conformal Reflectarray Antennas [PDF]
International Journal of Antennas and Propagation, 2012 This paper investigates the feasibility of designing reflectarray antennas on conformal surfaces. A generalized analysis approach is presented that can be applied to compute the radiation performance of conformal reflectarray antennas.
Payam Nayeri +2 more
doaj +2 more sources
Reflectarray Antennas printed on convex surfaces [PDF]
2015 International Conference on Electromagnetics in Advanced Applications (ICEAA), 2015 The characteristics of Reflectarray Antennas printed on convex curved surfaces are discussed in this paper. In particular, results will be presented on the radiation performances of Reflectarrays designed to fit cylinders with different radii of curvature, and with different types of radiating elements.
Bui Van H.a. +4 more
core +4 more sources
Recent Developments of Reflectarray Antennas in Dual-Reflector Configurations [PDF]
International Journal of Antennas and Propagation, 2012 Recent work on dual-reflector antennas involving reflectarrays is reviewed in this paper. Both dual-reflector antenna with a reflectarray subreflector and dual-reflectarrays antennas with flat or parabolic main reflectarray are considered.
Carolina Tienda +2 more
doaj +2 more sources
Modern Reflectarray Antennas: A Review of the Design, State-of-the-Art, and Research Challenges
IEEE AccessAs communication technology advances, high-gain antennas are being investigated for a variety of long-distance applications. One such high gain antenna is reflectarray, it has combined advantageous characteristics of a reflector and phased array antennas.
J. Annal Joy +5 more
doaj +2 more sources
Implementation of an Innovative Method to Design Reflectarray Antennas [PDF]
International Journal of Antennas and Propagation, 2012 A novel computed aided technique for designing reflectarray antennas is presented. The developed approach automatically generates the geometrical model of reflectarray antennas taking into account some input parameters, such as, the unit cell type and ...
Abdelhamid Tayebi +3 more
doaj +2 more sources
Digitized Reconfigurable Metal Reflectarray Surfaces for Millimeter-Wave Beam-Engineering
Applied Sciences, 2021 Digitized beam-forming metal reflectarray antennas are designed for the millimeter-wave region. The phase control of antennas has been implemented by the reconfiguration of rectangular grooves on a metal plate.
Minwoo Yi +3 more
doaj +1 more source
Reflectarray antennas for space applications [PDF]
2012 IEEE International Conference on Ultra-Wideband, 2012 In this paper, the advantages and recent developments of reflectarray antennas for space applications are reviewed. Basic requirements for space antennas, and the limitations and challenges of conventional designs are discussed. Various advantages of reflectarray antennas over reflectors and phased array antennas are reviewed and it is shown that ...
Atef Z. Elsherbeni +2 more
openaire +2 more sources
Analysis and Experimental Demonstration of Reflectarray Antennas in Quasi-Regular Lattices
IEEE Open Journal of Antennas and Propagation, 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 ...
Borja Imaz-Lueje +3 more
doaj +1 more source
Millimeter-Wave Metal Reflectarray Antennas with Sub-Wavelength Holes
, 2021 Reflectarray antennas composed of rectangular grooves with sub-wavelength holes on a metal plate are designed for millimeter-wave regions. All depths of multiple grooves in the metal reflectarray are elaborately manipulated for a high-gain reflector.
Sungjun Yoo, Minwoo Yi, Youngseok Bae
core +1 more source
Decoupling Backward Scattering Control and Forward Beamformed Communication in a Shared‐Aperture Retro‐Reflective/Transmissive Metasurface [PDF]
NanophotonicsConceptual illustration of the retro‐reflective and transmissive metasurface (RRTM). The blue radar establishes communication with the UAV via the transmissive mode, whereas the purple surveillance radar acquires the status of friendly units through the retro‐reflective mode and the two modes operate simultaneously within the same decoupled aperture ...
Zhang S +8 more
europepmc +2 more sources