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Prototyping a Radar Sensor based on a Xilinx RFSoC Device for Detect-And-Avoid onboard Small UAV
Valentine Wasik;Laurent Casadebaig;Benjamin Gabard;Benjamin Gigleux;Loïc Castanet;Yoann Paichard;Hervé Jeuland
2023 20th European Radar Conference (EuRAD)
Year: 2023 | Conference Paper |
This paper presents the development of an experimental radar payload by ONERA, onboard a small multirotor Unmanned Aerial Vehicle (UAV). The objective is to detect aerial targets for autonomous Detect-And-Avoid (DAA) purposes. The payload design combines low cost modular RF architecture with digital back-end based on the new FPGA RFSoC technologies from Xilinx. Experimental trials have been conduc...Show More
Airborne Targets Detection by UAV-Embedded Passive Radar
Benjamin Gabard;Valentine Wasik;Olivier Rabaste;Thierry Deloues;Dominique Poullin;Hervé Jeuland
This paper presents recent works realized at ONERA the French Aerospace Lab., on an experimental project which involved multistatic passive radar. One particularity of this multistatic radar system is that a ground based passive radar is combined with a passive radar embedded on a rotary wing UAV.Show More
A UAV Airborne Passive Digital Radar for Aerial Surveillance
Benjamin Gabard;Laurent Casadebaig;Thierry Deloues;Alexandre Amiez;Pierre Escalas;Dominique Poullin;Olivier Rabaste;Hervé Jeuland
This paper presents a detailed overview of an experimental passive radar payload developed by ONERA the French Aerospace Lab., which improves the performances of VHF passive radar by using Unmanned Aerial Vehicle (UAV) as support of the receiver. This article highlights the passive radar design which is based on techniques inspired from modern digital receivers combining front-end digitizer and FP...Show More
Ultrawideband multilayer printed antenna arrays with wide scanning capability
Benjamin Riviere;Hervé Jeuland;Sylvain Bolioli;Benjamin Gabard;Vincent Gobin
2015 IEEE International Symposium on Antennas and Propagation & USNC/URSI National Radio Science Meeting
Year: 2015 | Conference Paper |
We present different ultrawideband (UWB) multilayer printed arrays with large scanning capability and very low-profile. For each of them, both dielectric arrangement (relative permittivity and thickness of each dielectric layer) and radiating element shape have been simultaneously optimized to reach the best results in terms of bandwidth, scan range, and thickness. Single- and dual-polarized array...Show More
New Equivalent Circuit Model for a Broadband Optimization of Dipole Arrays
Equivalent circuits are frequently used as optimization tools for the design of dipole arrays. Previous approaches exist, but are valid only on tight bandwidths or do not model the array input impedance in both broadside and scan configurations. In this letter, we propose a new equivalent circuit that provides a large representation of dipole arrays from DC to the first free-space grating lobe fre...Show More
Ka-Band Phased Array Antenna for High-Data-Rate SATCOM
Thomas Lambard;Olivier Lafond;Mohamed Himdi;Herve Jeuland;Sylvain Bolioli;Laurent Le Coq
The general issue of this letter deals with the design of a phased array antenna for high-data-rate SATCOM. A final demonstrator antenna could be installed on an unmanned aerial vehicle (UAV) to communicate with a satellite in Ka-band. First, a compact reflection-type phase shifter is designed and realized. Second, the conception of a phased array antenna prototype is detailed. Third, a new calibr...Show More
New calibration method used for active phased array antennas
Proceedings of the 5th European Conference on Antennas and Propagation (EUCAP)
Year: 2011 | Conference Paper |
Cited by: Papers (1)
This paper deals with the design of a Ku-band phased array antenna where phase shifting is performed through the use of reflection-type phase shifters controlled with varactor diodes. The paper describes a new calibration method which can provide the bias voltage to be applied to each phase shifter in order to scan the beam in the desired direction. This method is based on the use of a microstrip ...Show More
A novel analog 360° phase shifter design in Ku and Ka bands
Proceedings of the Fourth European Conference on Antennas and Propagation
Year: 2010 | Conference Paper |
Cited by: Papers (1)
This paper presents a new 360° analog phase shifter for Ku and Ka bands applications. These devices are reflection-type analog phase shifters implemented with a 90° branch-line coupler and a new load concept. Varactor diode is used as the tuning element to change capacitance with voltage. Test circuits have been optimized, in order to have 360° phase shift range with low insertion loss. The measur...Show More
Design of a KA-band wide scanning phased array antenna
T. Lambard;O. Lafond;M. Himdi;H. Jeuland;S. Bolioli;L. Le Coq
2009 3rd European Conference on Antennas and Propagation
Year: 2009 | Conference Paper |
The general issue of this paper deals with the design of a phased array antenna for high data rate SATCOM on UAV (Unmanned Aerial Vehicle) in Ka band. This paper presents: 1) a comparative study of possible antenna element candidates for a 30 GHz circularly polarized and wide angle scan phased array. 2) a new low loss analog phase shifter concept. This will lead to the conception of a phased array...Show More
A Ka Band Imaging Radar: DRIVE on Board ONERA Motorglider
J. Nouvel;H. Jeuland;G. Bonin;S. Roques;O. Du Plessis;J. Peyret
2006 IEEE International Symposium on Geoscience and Remote Sensing
Year: 2006 | Conference Paper |
Cited by: Papers (48)
Following previous studies, a concept of low-cost imaging Ka-Band radar is presented in this paper. This radar is integrated into under-wings pods that are fixed on a STEMME S10VT motorglider. This radar concept combines real aperture in the cross-track direction, by the antennas geometrical aperture, and synthetic aperture in the along-track direction, realized with the aircraft motion. Radar fro...Show More
A study of a 3D-SAR concept for a millimeter wave imaging radar onboard an UAV
First European Radar Conference, 2004. EURAD.
Year: 2004 | Conference Paper |
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