Results 21 to 30 of about 409 (184)
IEEE Access, 2020 A gain-enhancement scheme that combines an active integrated antenna (AIA) and an optically transparent reflectarray on solar cells is proposed for CubeSat applications.
Yen-Sheng Chen +2 more
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Wide Band Beam Steering Digital Metasurface Reflectarray Antenna for Millimeter Wave Applications
IEEE Access, 2023 A compact wideband digital metasurface reflectarray antenna for millimeter-wave application is presented in this article. The metasurface reflectarray is composed of periodic arrangements of metabit unit cell elements.
Gazali Bashir +2 more
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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
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A reflectarray Using a Dielectric Discretized Concave Mirror Based on Electromagnetic Band Gap [PDF]
Journal of Microwaves, Optoelectronics and Electromagnetic ApplicationsThis paper presents a reflectarray antenna with an innovative dielectric mirror in the form of a discretized concave reflector. The mirror, manufactured via 3D printing, combines dielectric and air layers, forming an Electromagnetic Band Gap (EBG) that ...
Gustavo Maciulis Dip +1 more
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New Phase Realization Approach for Implementation of Braodband Reflectarrays
International Journal of Information and Communication Technology Research, 2021 We present a new phase realization approach applied to design the broadband single-layer reflectarray antennas. Such an optimization technique minimizes the adverse effects of frequency dispersion which limit the bandwidth of reflectarray antenna ...
Mahmood Rafaei-Booket +1 more
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Shaped-Pattern Reflectarray Antennas for mm-Wave Networks Using a Simple Cell Topology
IEEE Access, 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.
Borja Imaz-Lueje +4 more
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W-Band Single-Layer Broadband Reflectarray Antenna
IEEE Access, 2023 In this paper, a W-band single-layer reflectarray antenna is proposed with the advantages of broadband and high aperture efficiency. A novel dual rotation-symmetry windmill element is designed in the W-band, which consists two layers of copper patches ...
Zhicheng Wang +6 more
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Design and Fabrication of a dual-polar reflector array antenna for satellite applications [PDF]
فصلنامه علوم و فناوری فضایی, 2020 This paper presents a new unit to design dual linearly polarized reflectarray antenna at ku for satellite telecommunication. Two orthogonal sets of parallel dipoles are used for each polarization to achieve more degree of freedom in the design and wider ...
Alireza HeshmatiMoez +3 more
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Neural Network Characterization of Reflectarray Antennas
International Journal of Antennas and Propagation, 2012 An efficient artificial neural network (ANN) approach for the modeling of reflectarray elementary components is introduced to improve the numerical efficiency of the different phases of the antenna design and optimization procedure, without loss in accuracy.
A. Freni +2 more
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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
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