Results 151 to 160 of about 4,264 (215)
Antenna Design and Optimization for 5G, 6G, and IoT. [PDF]
Sensors (Basel)Jahanbakhsh Basherlou H +2 more
europepmc +1 more source
A Wideband Water-Based 3D-Printed Reflect-Transmit Antenna Array Toward mmWave Positioning Applications. [PDF]
Sensors (Basel)Ahmed F +6 more
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Design of a Near-Field Focused Reflectarray Antenna for 2.4 GHz RFID Reader Applications
IEEE Transactions on Antennas and Propagation, 2011 The design of a reflectarray antenna is presented when the radiated field is focused in the near-zone of the array aperture. In particular, the reflectarray antenna is implemented for RFID reader applications at 2.4 GHz.
Paolo Nepa +2 more
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Frontiers in Reflectarray Design
2019 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting, 2019The design of wide reflectarray antennas (RA) featuring complex unit cells through a scalable, efficient, and effective approach based on the System-by-Design (SbD) paradigm is investigated in this work. Towards this end, the customization of the SbD loop to the RA synthesis problem is described, and the integration of advanced micro-scale modeling ...
Oliveri G. +3 more
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IEEE Transactions on Antennas and Propagation, 1963
A class of antennas that utilizes arrays of elementary antennas as reflecting surfaces has been investigated. An antenna of this type is here called a Reflectarray. It has been found that the Reflectarray combines much of the simplicity of the reflector-type antenna with the performance versatility of the array type. The reflecting surfaces employed in
D. Berry, R. Malech, W. Kennedy
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A class of antennas that utilizes arrays of elementary antennas as reflecting surfaces has been investigated. An antenna of this type is here called a Reflectarray. It has been found that the Reflectarray combines much of the simplicity of the reflector-type antenna with the performance versatility of the array type. The reflecting surfaces employed in
D. Berry, R. Malech, W. Kennedy
openaire +1 more source
Optimization of a Gangbuster Reflectarray Antenna
2005 IEEE Antennas and Propagation Society International Symposium, 2005In this paper we discuss the optimization of the design, carried out through a pseudo-random optimization algorithm, of a gangbuster reflectarray antenna. The variation of reflection coefficient phase on the reflectarray surface is achieved by varying the length of the local wires in the gangbuster surface. For the optimization, a genetic algorithm has
MUSSETTA, MARCO +4 more
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A Reconfigurable Origami Reflectarray
2020 14th European Conference on Antennas and Propagation (EuCAP), 2020This paper presents a novel Miura-Ori origami reflectarray unit-cell. This origami inspired unit-cell allows efficient folding\unfolding, high packing efficiency, easy deployment and frequency reconfigurable behavior. The unitcell is composed of 4 parallelogram patches that can achieve 560° phase shift.
Abdul-Sattar Kaddour +2 more
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Patents on Reconfigurable Reflectarray Antennas
Recent Patents on Electrical Engineeringe, 2009Reflectarray antennas have attracted significant attention due to a number of attractive properties, such as low cost, and conformal deployment capability. In addition, the drive towards flexible radio transceivers, enabling beamforming and multi-beam operation has spurred significant interest towards the design of antenna elements and antenna arrays ...
Georgiadis, Apostolos +2 more
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Genetic optimization of microstrip reflectarrays
IEEE Antennas and Propagation Society International Symposium (IEEE Cat. No.02CH37313), 2005Printed reflectarrays try to combine the advantages of both reflectors and printed arrays (see e.g. [l]) and consist in arrays of printed patches, illuminated by a primary feed horn, that re-radiate the illuminating power back into the space. Since the elements have different positions, the field that propagates from the feed to the patches covers ...
ZICH, RICCARDO +4 more
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Printed millimeter-wave reflectarrays
Annales Des Télécommunications, 2001Des structures periodiques et quasi-periodiques, imprimees sur un substrat dielectrique peuvent etre employees pour commander les proprietes de reflexion et de transmission des ondes incidentes en fonction de la structure geometrique. Ceci peut etre realise pratiquement independamment pour les deux polarisations.
Dietmar Pilz, Wolfgang Menzel
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