Bandwidth Improvement in Large Reflectarrays by Using True-Time Delay [PDF]
, 2008 A significant improvement in the bandwidth of large reflectarrays is demonstrated using elements which allow true-time delay. Two identical, large reflectarrays have been designed using different phase distributions to generate a collimated beam.
Barba Gea, Mariano +2 more
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Wideband Single‐Layer Reflectarray Antenna for Millimeter‐Wave 5G Communications
Journal of Sensors, Volume 2026, Issue 1, 2026.The rapid evolution of intelligent applications has driven the demand for high‐performance antenna systems. Reflectarrays (RAs), also referred to as planar reflectors, have emerged as a promising solution for modern wireless and satellite communication systems due to their beam‐steering capability and high‐gain characteristics.
S. D. Khan +7 more
wiley +1 more source
A Novel Design Approach to X-Band Minkowski Reflectarray Antennas using the Full-Wave EM Simulation-based Complete Neural Model with a Hybrid GA-NM Algorithm [PDF]
, 2014 In this work, a novel multi-objective design optimization procedure is presented for the Minkowski Reflectarray RAs using a complete 3-D CST Microwave Studio MWS-based Multilayer Perceptron Neural Network MLP NN model including the substrate constant εr ...
Demirel, S., Guneş, F., NESİL, S.
core +1 more source
Graphene for Antenna Applications: Opportunities and Challenges from Microwaves to THz
, 2012 The use of graphene for antennas and other electromagnetic passives could bring significant benefit such as extreme miniaturization, monolithic integration with graphene RF nanoelectronics, efficient dynamic tuning, and even transparency and mechanical ...
Perruisseau-Carrier, Julien
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Cloaking and Antennas: From Theoretical Paradigms to Next‐Generation Intelligent Systems
Advanced Optical Materials, Volume 13, Issue 33, November 25, 2025.The inception of electromagnetic cloaking sparked an immediate question: Can antennas be made invisible? Two decades later, this review charts the intertwined progress of major cloaking strategies (from transformation optics to scattering cancellation), metasurface technology, and their application to antennas, revealing how AI‐enabled devices are ...
Helen Guo, Xun Li
wiley +1 more source
A 1-Bit Electronically Reconfigurable Reflectarray Antenna in X Band
IEEE Access, 2019 In this paper, a fully electronically reconfigurable reflectarray antenna that has 14×14 reflecting elements and features a higher aperture efficiency was designed, fabricated, and tested.
Hai Zhang +4 more
doaj +1 more source
Reconfigurable Reflectarrays and Array Lenses for Dynamic Antenna Beam Control: A Review
, 2013 Advances in reflectarrays and array lenses with electronic beam-forming capabilities are enabling a host of new possibilities for these high-performance, low-cost antenna architectures.
Hum, Sean Victor +1 more
core +1 more source
Advanced Electronic Materials, Volume 11, Issue 9, June 2025.A novel optically transparent reflectarray design approach based on multi‐resonant phase‐shifting elements with minimal fine metal line (FML) structures and low‐loss single‐layer cyclic olefin copolymer (COC) substrate is proposed. The design achieves exceptional antenna performance while ensuring high optical transparency, validated through wireless ...
Longzhu Cai +5 more
wiley +1 more source
Tunable Reflectarray Cell for Wide Angle Beam-Steering Radar Applications
Journal of Electrical and Computer Engineering, 2013 An electronically tunable reflectarray element is proposed in this work to design beam-steering antennas useful for radar applications. A reduced size reflectarray unit cell is properly synthesized in order to extend the antenna beam scanning ...
F. Venneri, S. Costanzo, G. Di Massa
doaj +1 more source
Penghasilan panduan keselamatan industri bagi kegunaan bakal graduan Kejuruteraan Elektrik Politeknik [PDF]
, 2003 Panduan keselamatan industri merupakan satu bentuk bimbingan yang penting kepada pelajar supaya mereka dapat mengetahui dengan jelas tentang amalan dan pengurusan keselamatan keija.
Wan Mahmud, Wan Mahzhir
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