Communication Dans Un Congrès Année : 2020

High Gain Sectorial Beam Reflectarray Design for DVB-S Passive Radar through Multi-Beam Optimization

Résumé

Main advantages of employing DVB-S as Illumina-tor of Opportunity for passive radar is high availability, but the power scattered from targets is really low. In this paper, the design of a surveillance antenna capable of fulfilling the requirements defined by the DVB-S passive radar, is carried out. Detection and tracking capabilities of ground targets are considered. A high gain antenna is required for fulfilling range coverage requirements, together with an azimuth beamwidth that provides the required angular one.To tackle this challenge, a sectorial beam reflectarray antenna is selected. For designing it, a method based on optimizing the steering of a set of beams that form of the sectorial pattern is proposed. The losses from reflectarray cells are introduced, optimizing the distribution of elements by selecting the best phase for the central one. The reflectarray is designed studying the geometric and feeding parameters and it is simulated in ANSYS HFSS achieving a sectorial beam of 7.4° (azimuth) x 2.3° (elevation) with a realized gain of 28.38 dBi.

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Dates et versions

hal-03116334 , version 1 (20-01-2021)

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Citer

J. Rosado-Sanz, M.P. Jarabo-Amores, D. Mata-Moya, Jean-Yves Dauvignac, Jérôme Lanteri, et al.. High Gain Sectorial Beam Reflectarray Design for DVB-S Passive Radar through Multi-Beam Optimization. 2020 23rd International Microwave and Radar Conference (MIKON), Oct 2020, Warsaw, France. pp.361-366, ⟨10.23919/MIKON48703.2020.9253846⟩. ⟨hal-03116334⟩
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