Search Results - "Loison, Renaud"

A New Approach Combining Surrounded-Element and Compression Methods for Analyzing Reconfigurable Reflectarray Antennas by Yann, C., Loison, R., Gillard, R., Labeyrie, M., Martinaud, Jean-Paul

“…An efficient technique to provide fast and accurate analysis of large-scale and complex reconfigurable reflectarray antennas is presented and validated. The…”
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Comparison of Synthesis Strategies for a Dual-Polarized Reflectarray by Marnat, Loic, Loison, Renaud, Gillard, Raphaël, Bresciani, Daniele, Legay, Hervé

“…This paper presents and compares four optimization strategies for printed reflectarrays. They are applied to synthesize a dual-polarized reflectarray using two…”
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A General Equivalent Circuit Model for Phoenix Cells by Guarriello, Andrea, Courtin, Guillaume, Loison, Renaud, Gillard, Raphael

“…This communication proposes a general equivalent circuit model for the fast characterization of Nth-order phoenix cells (PCs). It provides an intuitive and…”
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Structural and Radio-Frequency Co-design and Optimization of Large Deployable Reflectarrays for Space Missions by Guarriello, Andrea, Loison, Renaud, Bresciani, Daniele, Legay, Herve, Goussetis, George

“…The structural and Radio-Frequency (RF) design and optimization of a large deployable faceted reflectarray (RA) generating double polarization contour beam are…”
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Ridged Meandered Waveguides for 3D Routing and Phase Delay Control and its application to Discrete Lenses by Berretti, Lisa, Loison, Renaud, Menargues, Esteban, Capdevila, Santiago, Polo-Lopez, Lucas, Toso, Giovanni, Garcia-Vigueras, Maria

“…In this paper, an innovative procedure to design ridged meandered waveguides is introduced. By modulating the meandered centerline of a waveguide connecting…”
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A General Equivalent Circuit Model for Phoenix Cells by Guarriello, Andrea, Courtin, Guillaume, Loison, Renaud, Gillard, Raphael

“…This communication proposes a general equivalent circuit model for the fast characterization of <inline-formula> <tex-math notation="LaTeX">N…”
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The Phoenix Cell: A New Reflectarray Cell With Large Bandwidth and Rebirth Capabilities by Moustafa, Lina, Gillard, Raphael, Peris, Federico, Loison, Renaud, Legay, Herve, Girard, Etienne

“…This letter presents a new phase-shifting cell for linearly polarized reflectarray applications. It provides a nearly 360° phase range and naturally comes back…”
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Ridged Meandered Waveguides for 3-D Routing and Phase Delay Control and Its Application to Discrete Lenses by Berretti, Lisa, Loison, Renaud, Menargues, Esteban, Capdevila, Santiago, Polo-López, Lucas, Toso, Giovanni, García-Vigueras, María

“…In this article, an innovative procedure to design ridged meandered waveguides (RMWs) is introduced. By modulating the meandered centerline of a waveguide…”
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Adaptation strategies to climate change using cotton (Gossypium hirsutum L.) ideotypes in rainfed tropical cropping systems in Sub-Saharan Africa. A modeling approach by Gérardeaux, E., Loison, R., Palaï, Oumarou, Sultan, B.

“…•We designed a method for calibrating a model able to reproduce growth, yield and crop cycle diversity for four contrasted cotton cultivars.•The model, if…”
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Experimental Validation of a Correcting Coupling Mechanism to Extend the Scanning Range of Narrow Band Phased Array Antennas by Ayissi Manga, Aurélien, Gillard, Raphaël, Loison, Renaud, Leroy-Naneix, Isabelle, Renard, Christian

“… Abstract-This paper presents a technique designed to extend the scanning range of a probe-fed patch array whose performances are limited by scan blindness,…”
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Experimental Validation of a Correcting Coupling Mechanism to Extend the Scanning Range of Narrowband Phased Array Antennas by Manga, Aurelien Ayissi, Gillard, Raphael, Loison, Renaud, Roy-Naneix, Isabelle Le, Renard, Christian

“…This article presents a technique designed to extend the scanning range of a probe-fed patch array whose performances are limited by scan blindness, due to a…”
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A New Hybrid Method for the Analysis of Surrounded Antennas Mounted on Large Platforms by Le Lepvrier, Benoit, Loison, Renaud, Gillard, Raphael, Pouliguen, Philippe, Potier, Patrick, Patier, Laurent

“…An efficient technique to provide fast and accurate analysis of wideband surrounded antennas mounted on electrically large platforms is presented and validated…”
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Multibeam Antennas Based on 3D Discrete Lenses With Magnified Field-of-View by Berretti, Lisa, Loison, Renaud, Menargues, Esteban, Polo-LOPez, Lucas, Toso, Giovanni, GarcIA-Vigueras, MarIA

“…A new type of beamforming network (BFN) based on three-dimensional (3D) discrete lenses is introduced and numerically analyzed in this paper as an antenna…”
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Slot‐loaded patches with a switching mechanism to extend the scanning range of a phased array subject to scan blindness by Ayissi Manga, Aurélien, Gillard, Raphaël, Loison, Renaud, Le Roy‐Naneix, Isabelle, Renard, Christian

“…This article presents a novel solution to extend the scanning range of a cavity‐backed stacked‐patch phased array whose performances are limited by scan…”
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A New Approach Combining Surrounded-Element and Compression Methods for Analyzing Reconfigurable Reflectarray Antennas by Yann, Clement, Loison, Renaud, Gillard, Raphaël, Labeyrie, Michèle, Martinaud, Jean-Paul

“…An efficient technique to provide fast and accurate analysis of large-scale and complex reconfigurable reflectarray antennas is presented and validated. The…”
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An Efficient Bilateral Dual-Grid-FDTD Approach Applied to On-Body Transmission Analysis and Specific Absorption Rate Computation by Miry, C, Loison, R, Gillard, R

“…This paper presents a new simulation strategy based on the finite-difference time-domain (FDTD) method. This new approach aims at simulating efficiently a…”
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A combination of transformation optics and surface impedance modulation to design compact retrodirective reflectors by Haddad, H., Loison, R., Gillard, R., Harmouch, A., Jrad, A.

“…This study proposes a new approach to flatten retrodirective corner reflectors. The proposed method enables compact reflectors via Transformation Optics (TO)…”
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On the comparison between multiple-region and dual-grid finite-difference time-domain methods for the analysis of antenna arrays by Pascaud, Romain, Gillard, Raphaël, Loison, Renaud

“…A comparison between the multiple‐region (MR) and dual‐grid (DG) finite‐difference time‐domain (FDTD) methods for the analysis of antenna arrays is…”
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A reflectarray Antenna base on Multi-Scale Phase Shifting Cell Concept by Salti, Hassan, Gillard, Raphaël, Loison, Renaud, Le Coq, Laurent

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Advanced Optimization of an Isoflux Reflectarray by Guarriello, Andrea, Loison, Renaud, Bresciani, Daniele, Legay, Herve, Goussetis, George

“…This paper presents a method for the optimization of the cross-polar component of a circularly polarized isoflux reflectarray (RA) for payload data handling…”
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