Results 81 to 90 of about 533,787 (299)

A planar integrated folded reflectarray antenna with circular polarization [PDF]

, 2016
This communication presents the complete design of a circularly polarized (CP) folded reflectarray (FRA) antenna with an integrated planar structure for the first time in the open literature.
Gao, Steven, Wang, Y, Wei, Gao, Zhang, C, Zhu, Fuguo   +4 more
core   +1 more source

Do We Really Need Frequency‐Selective Surface and Metasurface Reflectors for Antenna Gain Enhancement, or Are Metallic Reflectors Enough?

International Journal of Antennas and Propagation, Volume 2026, Issue 1, 2026.
Enhancing antenna gain remains a key requirement in modern wireless systems, particularly with the rapid evolution of 5G, emerging 6G networks, satellite links, and high‐resolution radar. Recent research trends increasingly rely on frequency‐selective surfaces (FSSs) and metasurface‐based reflectors, which offer precise electromagnetic wave control ...
A. J. A. Al-Gburi, Mohammad Rezwan Habib
wiley   +1 more source

The Evolutions of Reflectarray Antennas for Small Satellites: Navigating to Design, Fabrication, and Performance Techniques

IEEE Access
Classical antennas in small satellites such as reflectors and phased arrays have encountered significant challenges, including restricted beam steering capabilities and complex deployment mechanisms.
Jasim Uddin, Harvinder Sing Nagi, Benjamin Falkner, Reza Akhavan, Ginu Rajan, Jon Platts, Chaminda T. E. R. Hewage, Leshan Uggalla   +7 more
doaj   +1 more source

Multifed Printed Reflectarray With Three Simultaneous Shaped Beams for LMDS Central Station Antenna [PDF]

, 2008
A two-layer reflectarray is proposed as a central station antenna for a local multipoint distribution system (LMDS) in the 24.5-26.5 GHz band. The antenna produces three independent beams in an alternate linear polarization that are shaped both in ...
Arrebola, Manuel, Barba Gea, Mariano, Encinar Garcinuño, José Antonio   +2 more
core   +3 more sources

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, M. I. Abbasi, I. M. Ibrahim, N. H. Sulaiman, M. H. Dahri, M. A. Humayun, Hela Elmannai, Deepali   +7 more
wiley   +1 more source

A Ka-Band High-Efficiency Transparent Reflectarray Antenna Integrated With Solar Cells

IEEE Access, 2018
A transparent reflectarray antenna integrated with solar cells is presented for satellite communications in the paper. The electromagnetic characteristics of solar cells at Ka-band are investigated, and a sub-wavelength X-shaped dipole element is ...
Wenxing An, Lin Xiong, Shenheng Xu, Fan Yang, Hai-Peng Fu, Jian-Guo Ma   +5 more
doaj   +1 more source

A Reflector Antenna With Integrated Frequency- Selective Metal-Only Reflectarray for Dual-Band Operation

IEEE Access, 2023
This paper presents a dual-band metal-only antenna that operates at 20 and 40 GHz. The unit cell consists of a square waveguide with short circuit termination and a square metallic block in the center. Its performance is evaluated and analyzed in detail.
Zhihang An, Tony Makdissy, Maria Garcia-Vigueras, Sebastien Vaudreuil, Raphael Gillard   +4 more
doaj   +1 more source

Recent Developments of Reflectarray Antennas for Reconfigurable Beams Using Surface-Mounted RF-MEMS [PDF]

, 2012
Some of the most recent developments in reconfigurable reflectarrays using surface-mounted RF-MEMS, which have been developed at the Universidad Politécnica de Madrid, are summarized in this paper.
Arrebola Baena, Manuel, Barba Gea, Mariano, Carrasco Yépez, Eduardo, Encinar Garcinuño, José Antonio   +3 more
core   +3 more sources

Dual-Band Shared Aperture Reflectarray and Patch Antenna Array for S- and Ka-Bands [PDF]

, 2021
Daniel E. Serup, Gert Frølund Pedersen, Shuai Zhang   +2 more
openalex   +1 more source

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