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Reflectarray Antennas printed on convex surfaces [PDF]

open access: yes2015 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.
Paola Pirinoli   +2 more
exaly   +5 more sources

Neural Network Characterization of Reflectarray Antennas [PDF]

open access: yesInternational 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 ...
Angelo Freni   +2 more
doaj   +3 more sources

Isolation Improvement in Reflectarray Antenna-Based FMCW Radar Systems [PDF]

open access: yesSensors, 2022
This paper presents an optimization of reflectarray-based RF sensors for detecting UAV and human presence. Our previous human detection radar system adapted a center-fed reflectarray antenna to a commercially available radar system, successfully ...
Hesham Yamani, Jihwan Yoon
doaj   +2 more sources

Investigation of losses on directivity improvement in the graphene reflectarray design [PDF]

open access: yesScientific Reports
The surface-wave generation in microstrip antennas and reflectarray antennas composed of microstrip patches is an unavoidable phenomenon. The incidence of surface-waves on discontinuities and edges results in side-lobe generation and main beam ...
Parinaz Hosseini, Homayoon Oraizi
doaj   +2 more sources

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

open access: yesSensors, 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   +2 more
doaj   +2 more sources

Modern Reflectarray Antennas: A Review of the Design, State-of-the-Art, and Research Challenges

open access: yesIEEE Access
As 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.
Bashyam Sugumaran   +2 more
exaly   +3 more sources

Recent Advances in Transparent Reflectarray Antennas

open access: yesIEEE Access
Transparent Reflectarray Antennas (TRAs) have emerged as a promising solution for next-generation communication systems requiring both electromagnetic performance and optical transparency. This review focuses on a detailed latest work on unit cell design
Altaf Ahmed Mugheri   +7 more
doaj   +3 more sources

Reflectarray Antennas: Analysis and Synthesis Techniques [PDF]

open access: yesInternational Journal of Antennas and Propagation, 2012
Sandra Costanzo
doaj   +2 more sources

Proof-of-Concept on Misalignment Compensation for 5.8-GHz-Band Reflectarray Antennas by Varactor Diodes

open access: yesIEEE Access, 2021
Membrane reflectarray antennas with flexible support structures realize low weight and low stowage volume. However, deformation of the reflectarray membrane generally degrades antenna gain. We propose electrical misalignment compensation for 5.8-GHz-band
Keisuke Omoto   +2 more
doaj   +1 more source

Digitized Reconfigurable Metal Reflectarray Surfaces for Millimeter-Wave Beam-Engineering

open access: yesApplied 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

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