Results 1 to 10 of about 308 (164)
Isolation Improvement in Reflectarray Antenna-Based FMCW Radar Systems [PDF]
Sensors, 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
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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 +2 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 ...
Angelo Freni +2 more
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Reflectarray Antennas: Analysis and Synthesis Techniques [PDF]
International Journal of Antennas and Propagation, 2012 Sandra Costanzo
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IEEE 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
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Digitized Reconfigurable Metal Reflectarray Surfaces for Millimeter-Wave Beam-Engineering
Applied 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
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Increasing bandwidth of full-metal slot reflectarray antennas [PDF]
ITM Web of Conferences, 2019 Results of theoretical and experimental investigations of full-metal slot reflectarray antennas with increased bandwidth are presented. Bandwidth increasing is achieved by means of certain sizes choice for each reflective element so that the phase-error ...
Sugak Mikhail +4 more
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Design of Microfluidic Reflectarray Elements for Multi-Reconfiguration Using Liquid Metal
IEEE Open Journal of Antennas and Propagation, 2022 Using an alloy of non-toxic liquid metal (Galinstan) is proposed to implement multi-reconfiguration in reflectarray elements. Reflectarray antennas are an interesting technology for dynamically controlling, simultaneously or individually, different ...
Eduardo Carrasco +4 more
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Single-Layer, Multimode OAM Reflectarray Antennas
IEEE Antennas and Wireless Propagation Letters, 2023 In this letter, an innovative ReflectArray (RA) antenna able to radiate in the same direction multiple Orbital Angular Momentum (OAM) modes, is presented: depending on the direction of arrival of the impinging field, the RA radiates a broadside beam carrying on an OAM mode with different index.
Michele Beccaria +2 more
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Reflectarray Antennas printed on convex surfaces [PDF]
2015 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.
Bui Van H.a. +4 more
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