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28 results on '"Bresciani, Daniele"'

1. Polarimetric Control of Reflective Metasurfaces

Author

Artiga, Xavier, Bresciani, Daniele, Legay, Hervé, and Perruisseau-Carrier, Julien

Subjects
Physics - Optics
Abstract

This letter addresses the synthesis of reflective cells approaching a given desired Floquet's scattering matrix. This work is motivated by the need to obtain much finer control of reflective metasurfaces by controlling not only their co-polarized reflection but also their cross-coupling behavior. The demonstrated capability will enable more powerful design approaches -involving all field components in phase and magnitude- and consequently better performance in applications involving reflective metasurfaces. We first expose some fundamental theoretical constraints on the cell scattering parameters. Then, a successful procedure for controlling all four scattering parameters by applying parallelogram and trapezoid transformations to square patches is presented, considering both normal and oblique incidence.

Published
2012
Full Text
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5. Advanced Optimization of an Isoflux Reflectarray

Author

Guarriello, Andrea, Loison, Renaud, Bresciani, Daniele, Legay, Hervé, Goussetis, George, Institut d'Électronique et des Technologies du numéRique (IETR), Université de Rennes (UR)-Institut National des Sciences Appliquées - Rennes (INSA Rennes), Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-CentraleSupélec-Centre National de la Recherche Scientifique (CNRS)-Nantes Université - pôle Sciences et technologie, Nantes Université (Nantes Univ)-Nantes Université (Nantes Univ), Heriot-Watt University [Edinburgh] (HWU), Thales Alenia Space [Toulouse] (TAS), THALES [France], and European Commission [MSCA-ITN-2016-722840]

Subjects
[SPI]Engineering Sciences [physics], Reflectarray optimization, isoflux pattern, minimax optimization, spline surfaces projection
Abstract

International audience; This paper presents a method for the optimization of the cross-polar component of a circularly polarized isoflux reflectarray (RA) for payload data handling and transmission. The advanced optimization technique consists of an efficient lookup table parametrization employed in a direct radiation pattern optimization of the RA through minimax algorithms. The lookup table parametrization is employed in a spline projection of the RA cells distribution. The spline coefficients are modulated to achieve a sectorial bilateral isoflux radiation pattern with cross-polar discrimination superior to 15 dB. The RA optimization is performed by considering cells local periodicity that is naturally ensured by the spline projection of the RA layout.

Published
2022

6. Design of Circularly Polarized and Highly Depointing Reflectarrays with high polarization purity

Author

Guarriello, Andrea, Bresciani, Daniele, Legay, Hervé, Goussetis, George, Loison, Renaud, Institut d'Électronique et des Technologies du numéRique (IETR), Université de Rennes (UR)-Institut National des Sciences Appliquées - Rennes (INSA Rennes), Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-CentraleSupélec-Centre National de la Recherche Scientifique (CNRS)-Nantes Université - pôle Sciences et technologie, Nantes Université (Nantes Univ)-Nantes Université (Nantes Univ), Institut National des Sciences Appliquées - Rennes (INSA Rennes), Institut National des Sciences Appliquées (INSA), Thales Alenia Space [Toulouse] (TAS), THALES [France], Heriot-Watt University [Edinburgh] (HWU), and Guarriello, Andrea

Subjects
[SPI.ELEC]Engineering Sciences [physics]/Electromagnetism, tilted beam, [SPI.ELEC] Engineering Sciences [physics]/Electromagnetism, circular polarization, reflectarray, optimization, [SPI.TRON] Engineering Sciences [physics]/Electronics, [SPI.TRON]Engineering Sciences [physics]/Electronics
Abstract

International audience; This work aims to investigate the limitations and possible solutions in designing highly tilted radiation pattern reflectarrays working in double circular polarization and fed by an onset single primary source. To this extent, three single-layer monolithic reflectarrays, producing a pencil beam at increasing radiation angles with high X-polarization discrimination (XPD) have been designed and analyzed. A direct optimization technique shows that an XPD=20 dB can be attained for radiation patterns pointing at sixty degrees, at the cost of co-polarised directivity degradation. An analysis of the target aperture fields, obtained through backscattering techniques, shows that an amplitude modulation on the aperture field components is necessary to obtain highly tilted radiation patterns with high XPD. Since reflectarray cells are not able to produce such amplitude components unbalance, an elliptically polarized source is considered, producing an incident field components amplitude unbalance that results in a radical reduction of the X-polarization levels.

Published
2022

16. A Multi Facet Composite Panel Reflectarray for a Space Contoured Beam Antenna in Ku Band

Author

Legay, Hervé, Bresciani, Daniele, Labiole, E., Chiniard, Renaud, Gillard, Raphaël, Thales Alenia Space (TAS), THALES, Institut d'Électronique et des Technologies du numéRique (IETR), Université de Nantes (UN)-Université de Rennes 1 (UR1), Université de Rennes (UNIV-RENNES)-Université de Rennes (UNIV-RENNES)-Institut National des Sciences Appliquées - Rennes (INSA Rennes), Institut National des Sciences Appliquées (INSA)-Université de Rennes (UNIV-RENNES)-Institut National des Sciences Appliquées (INSA)-CentraleSupélec-Centre National de la Recherche Scientifique (CNRS), Nantes Université (NU)-Université de Rennes 1 (UR1), Thales Alenia Space [Toulouse] (TAS), THALES [France], Université de Nantes (UN)-Université de Rennes (UR)-Institut National des Sciences Appliquées - Rennes (INSA Rennes), and Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-CentraleSupélec-Centre National de la Recherche Scientifique (CNRS)

Subjects
ComputingMilieux_MISCELLANEOUS
Abstract

International audience

Published
2013

17. Measurement of a 1.3 m Reflectarray in flat panels in Ku band

Author

Legay, Hervé, Bresciani, Daniele, Labiole, E., Chiniard, Renaud, Gillard, Raphaël, Toso, G., Institut d'Électronique et des Technologies du numéRique (IETR), Université de Nantes (UN)-Université de Rennes 1 (UR1), Université de Rennes (UNIV-RENNES)-Université de Rennes (UNIV-RENNES)-Institut National des Sciences Appliquées - Rennes (INSA Rennes), Institut National des Sciences Appliquées (INSA)-Université de Rennes (UNIV-RENNES)-Institut National des Sciences Appliquées (INSA)-CentraleSupélec-Centre National de la Recherche Scientifique (CNRS), Thales Alenia Space (TAS), THALES, Nantes Université (NU)-Université de Rennes 1 (UR1), Université de Nantes (UN)-Université de Rennes (UR)-Institut National des Sciences Appliquées - Rennes (INSA Rennes), Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-CentraleSupélec-Centre National de la Recherche Scientifique (CNRS), Thales Alenia Space [Toulouse] (TAS), and THALES [France]

Subjects
ComputingMilieux_MISCELLANEOUS
Abstract

International audience

Published
2012

18. A1.3 m facetted Reflectarray in Ku band

Author

Legay, Hervé, Bresciani, Daniele, Labiole, E., Chiniard, Renaud, Girard, Etienne, Caille, Gérard, Calas, D., Gillard, Raphaël, Toso, G., Institut d'Électronique et des Technologies du numéRique (IETR), Université de Nantes (UN)-Université de Rennes (UR)-Institut National des Sciences Appliquées - Rennes (INSA Rennes), Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-CentraleSupélec-Centre National de la Recherche Scientifique (CNRS), Thales Alenia Space [Toulouse] (TAS), THALES [France], Nantes Université (NU)-Université de Rennes 1 (UR1), Université de Rennes (UNIV-RENNES)-Université de Rennes (UNIV-RENNES)-Institut National des Sciences Appliquées - Rennes (INSA Rennes), Institut National des Sciences Appliquées (INSA)-Université de Rennes (UNIV-RENNES)-Institut National des Sciences Appliquées (INSA)-CentraleSupélec-Centre National de la Recherche Scientifique (CNRS), Thales Alenia Space (TAS), THALES, and Université de Nantes (UN)-Université de Rennes 1 (UR1)

Subjects
ComputingMilieux_MISCELLANEOUS
Abstract

International audience

Published
2012

20. Synthèse et optimisation d'un reflectarray bipolarisé en bande Ku

Author

Marnat, Loïc, Loison, Renaud, Gillard, Raphaël, Bresciani, Daniele, Legay, Hervé, Institut d'Electronique et de Télécommunications de Rennes (IETR), Centre National de la Recherche Scientifique (CNRS)-Ecole Supérieure d'Electricité - SUPELEC (FRANCE)-Institut National des Sciences Appliquées - Rennes (INSA Rennes), Institut National des Sciences Appliquées (INSA)-Université de Rennes (UNIV-RENNES)-Institut National des Sciences Appliquées (INSA)-Université de Rennes (UNIV-RENNES)-Université de Rennes 1 (UR1), Université de Rennes (UNIV-RENNES), Institut d'Électronique et des Technologies du numéRique (IETR), Nantes Université (NU)-Université de Rennes 1 (UR1), Université de Rennes (UNIV-RENNES)-Université de Rennes (UNIV-RENNES)-Institut National des Sciences Appliquées - Rennes (INSA Rennes), Institut National des Sciences Appliquées (INSA)-Université de Rennes (UNIV-RENNES)-Institut National des Sciences Appliquées (INSA)-CentraleSupélec-Centre National de la Recherche Scientifique (CNRS), Thales Alenia Space (TAS), THALES, Université de Nantes (UN)-Université de Rennes 1 (UR1), Université de Rennes (UR)-Institut National des Sciences Appliquées - Rennes (INSA Rennes), Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Ecole Supérieure d'Electricité - SUPELEC (FRANCE)-Centre National de la Recherche Scientifique (CNRS), Université de Nantes (UN)-Université de Rennes (UR)-Institut National des Sciences Appliquées - Rennes (INSA Rennes), Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-CentraleSupélec-Centre National de la Recherche Scientifique (CNRS), Thales Alenia Space [Toulouse] (TAS), and THALES [France]

Subjects
[SPI.ELEC]Engineering Sciences [physics]/Electromagnetism
Abstract

National audience; La synthèse d'un reflectarray pour une application de télécommunication spatiale est présentée dans ce papier. Une stratégie de sélection des cellules est proposée et les performances de l'antenne mesurée sont présentées.

Published
2009

21. OPTIMIZATION STRATEGIES FOR DUAL POLARIZED REFLECTARRAYS

Author

Marnat, Loïc, Loison, Renaud, Gillard, Raphaël, Bresciani, Daniele, Legay, Hervé, Institut d'Electronique et de Télécommunications de Rennes (IETR), Centre National de la Recherche Scientifique (CNRS)-Ecole Supérieure d'Electricité - SUPELEC (FRANCE)-Institut National des Sciences Appliquées - Rennes (INSA Rennes), Institut National des Sciences Appliquées (INSA)-Université de Rennes (UNIV-RENNES)-Institut National des Sciences Appliquées (INSA)-Université de Rennes (UNIV-RENNES)-Université de Rennes 1 (UR1), Université de Rennes (UNIV-RENNES), Institut d'Électronique et des Technologies du numéRique (IETR), Université de Nantes (UN)-Université de Rennes 1 (UR1), Université de Rennes (UNIV-RENNES)-Université de Rennes (UNIV-RENNES)-Institut National des Sciences Appliquées - Rennes (INSA Rennes), Institut National des Sciences Appliquées (INSA)-Université de Rennes (UNIV-RENNES)-Institut National des Sciences Appliquées (INSA)-CentraleSupélec-Centre National de la Recherche Scientifique (CNRS), Thales Alenia Space (TAS), THALES, Université de Rennes (UR)-Institut National des Sciences Appliquées - Rennes (INSA Rennes), Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Ecole Supérieure d'Electricité - SUPELEC (FRANCE)-Centre National de la Recherche Scientifique (CNRS), Université de Nantes (UN)-Université de Rennes (UR)-Institut National des Sciences Appliquées - Rennes (INSA Rennes), Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-CentraleSupélec-Centre National de la Recherche Scientifique (CNRS), Thales Alenia Space [Toulouse] (TAS), THALES [France], and Nantes Université (NU)-Université de Rennes 1 (UR1)

Subjects
[SPI.ELEC]Engineering Sciences [physics]/Electromagnetism, ComputingMilieux_MISCELLANEOUS
Abstract

International audience

Published
2008

24. A 1.3 m facetted reflectarray in Ku band

Author

Legay, Herve, primary, Bresciani, Daniele, additional, Labiole, Eric, additional, Chiniard, Renaud, additional, Girard, Etienne, additional, Caille, Gerard, additional, Calas, Daniel, additional, Gillard, Raphael, additional, and Toso, Giovanni, additional

Published
2012
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26. Measurement of a 1.3 m reflectarray antenna in flat panels in Ku band.

Author

Legay, Herve, Bresciani, Daniele, Labiole, Eric, Chiniard, Renaud, Gillard, Raphael, and Toso, Giovanni

Abstract

Thales Alenia Space has developed a facetted reflectarray, made of five flat panels arranged along an offset parabolic profile, as shown in Figure 1. Faceting the demonstrator is essential for achieving satisfactory RF performances, and especially the largest bandwidth. Many innovative techniques and processes were developed and are reported in [1]. [ABSTRACT FROM PUBLISHER]

Published
2012

27. A MULTI FACETS COMPOSITE PANEL REFLECTAR-RAY ANTENNA FOR A SPACE CONTOURED BEAM ANTENNA IN KU BAND.

Author

Légay, Herve, Bresciani, Daniele, Labiole, Eric, Chiniard, Renaud, and Gillard, Raphaël

Subjects
REFLECTARRAY antennas, ANTENNAS (Electronics), ELECTRONIC equipment, DIRECTIONAL antennas, BANDWIDTHS
Abstract

A 1.3m piecewise reflectarray demonstrator has been designed, manufactured and tested, that radiates a contoured beam coverage over North America. A very good agreement is obtained between the theoretical and measured radiation patterns. Many innovative techniques and processes were developed in order to meet the challenging specifications of a space telecommunication antenna. [ABSTRACT FROM AUTHOR]

Published
2013
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28. Advanced mechanical and radiofrequency design of reflect array antennas for space applications

Author

Guarriello, Andrea, Goussetis, George, and Bresciani, Daniele

Subjects
621.3841
Abstract

The analysis, optimization, and design of advanced reflectarray (RA) antennas for space applications are investigated in this work. The study is focused on developing methodologies and tools able to be integrated into the industrial framework of this thesis. RA antennas are a relatively emerging technology in the space telecommunication framework, benefiting from the advantages of the conventional reflectors and array antennas for high gain applications. This work surveys the coupled mechanical and radiofrequency (RF) design aspects of RA antennas. The mechanical design of large RA antennas shows some limitations concerning the survivability in the harsh space environment. Indeed, strong thermoelastic deformations of the RA composite structures can remarkably affect the antenna's electrical performances. This work surveys these aspects by proposing reliable and cost-effective structural solutions, which are consequently taken into account in the RA electrical design process. The electrical analysis and design process benefits from internal industrial tolls that are efficiently integrated with original tools developed in this thesis framework. The electrical design process lies in some hypotheses that allow an efficient design and op timization of the RA antenna layout, such as the local periodicity assumption. The local periodicity hypothesis is well respected in the RA design process investigated in this work by employing a particular unit cell, named Phoenix cell. The Phoenix cell geometries are efficiently handled in parametrized lookup tables to prevent any sharp geometrical transition on the RA layout. This work proposes and compares different design and optimization approaches in which the unit cells definition, and the subsequent lookup table construction, are efficiently integrated. The classical phase-only synthesis is surveyed and implemented. It represents the departing point for the direct layout optimization, aiming to improve the RA performances by naturally preventing any sharp geometrical transition on the RA layout. The optimization is conducted through a continuous and regular modulation of the RA cells geometries distribution by targeting prescribed performances, either on the aperture or the far-field. The coupled RF/mechanical design is applied to a concrete case of a large deployable RA for telecommunication spacecraft. Moreover, the electrical analysis and design of a small satellite RA antenna for payload data handling and transmission are investigated and implemented.

Published
2021

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