Results 11 to 20 of about 533,787 (299)

Support Vector Regression to Accelerate Design and Crosspolar Optimization of Shaped-Beam Reflectarray Antennas for Space Applications

IEEE Transactions on Antennas and Propagation, 2018
A machine learning technique is applied to the design and optimization of reflectarray antennas to considerably accelerate computing time without compromising accuracy. In particular, support vector machines (SVMs), automatic learning structures that are
Daniel R. Prado, Jesús A. López‐Fernández, Manuel Arrebola, George Goussetis   +3 more
openalex   +3 more sources

Analysis and Design of an X-Band Reflectarray Antenna for Remote Sensing Satellite System [PDF]

Sensors, 2022
This paper presents the analysis and design of an X-band reflectarray. The proposed antenna can be used for a medium Earth orbit (MEO) remote sensing satellite system in the 8.5 GHz band.
Shimaa A. M. Soliman, Eman M. Eldesouki, Ahmed M. Attiya   +2 more
doaj   +2 more sources

Bifocal Design Procedure for Dual-Reflectarray Antennas in Offset Configurations

IEEE Antennas and Wireless Propagation Letters, 2018
This letter presents a new bifocal design procedure for dual-reflectarray antennas (DRAAs) in offset configurations. The technique starts by considering an axially symmetric geometry with the reflectarrays placed in parallel planes, which allows the ...
Eduardo Martinez‐de‐Rioja, José A. Encinar, A.G. Pino, Borja González-Valdés, Sean V. Hum, Carolina Tienda Herrero   +5 more
openalex   +3 more sources

A Review of Wideband Reflectarray Antennas for 5G Communication Systems

IEEE Access, 2017
The advancement in the current communication technology makes it incumbent to analyze the conventional features of reflectarray antenna for future adaptability.
Muhammad Hashim Dahri, Mohd Haizal Jamaluddin, Muhammad Inam Abbasi, Muhammad Ramlee Kamarudin   +3 more
openalex   +2 more sources

Optimized Periodic MoM for the Analysis and Design of Dual Polarization Multilayered Reflectarray Antennas Made of Dipoles

IEEE Transactions on Antennas and Propagation, 2017
A hybrid version of the Method of Moments (MoM) is applied to the analysis of the scattering of plane waves by periodic multilayered structures containing dipoles at two metallization levels.
Rafael Florencio, Rafael R. Boix, José A. Encinar, Giovanni Toso   +3 more
openalex   +3 more sources

A novel broadband reflectarray antenna employing equivalent magnetic dipole elements. [PDF]

Sci Rep
Li S, Cai Y, Ma H, Bu L, Qi S, Cao Y, Wu T.   +6 more
europepmc   +3 more sources

1‐Bit reconfigurable reflectarray antenna with T‐shaped parasitic structure

IET Microwaves, Antennas & Propagation
In this paper, an electronically 1‐bit reconfigurable reflectarray antenna (RRA) with wide‐angle beam‐scanning and high efficiency performance is presented for formation satellite communication applications. A 1‐bit phase distribution can be generated by
Sen Li, Yang Cai, Hong Ma, Lijun Bu, Siyu Qi, Yufan Cao, Tao Wu   +6 more
doaj   +2 more sources

A 3D-Printed Bi-Material Bragg-Based Reflectarray Antenna. [PDF]

Sensors (Basel)
Chekkar W, Lanteri J, Malvaux T, Sourice J, Lizzi L, Migliaccio C, Ferrero F.   +6 more
europepmc   +2 more sources

Broadband, Single‐Layered, and Optically Transparent Reflective Phase‐Shifting‐Surface Array for Beam Manipulation and Enhanced Wireless Communications

Advanced Electronic Materials
Optically transparent electromagnetic devices play a crucial role in modern society, yet conventional optically transparent millimeter‐wave devices suffer from high return loss, limited phase shift, narrow bandwidth, high profile, and low optical ...
Longzhu Cai, Jianjing Zhou, Jiaqi Zhou, Lei Zhang, Zhi Hao Jiang, Wei Hong   +5 more
doaj   +2 more sources

Reflectarray Antennas: Analysis and Synthesis Techniques [PDF]

International Journal of Antennas and Propagation, 2012
Sandra Costanzo
doaj   +2 more sources