Concept of a multi-beam reflectarray digital-beam forming synthetic aperture radar

Conference paper (2013)

Authors

A. Patyuchenko Deutsches Zentrum für Luft- und Raumfahrt (DLR)
Carolina Tienda Deutsches Zentrum für Luft- und Raumfahrt (DLR)
Marwan Younis Deutsches Zentrum für Luft- und Raumfahrt (DLR)
Sebastian Bertl Deutsches Zentrum für Luft- und Raumfahrt (DLR)
Paco López-Dekker Deutsches Zentrum für Luft- und Raumfahrt (DLR)
Gerhard Krieger Deutsches Zentrum für Luft- und Raumfahrt (DLR)
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Published Date

2013

Language

English

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Abstract

This paper presents a novel concept of a spaceborne Digital Beamforming (DBF) Synthetic Aperture Radar (SAR) based on a multi-beam reflectarray antenna. The proposed solution offers a number of advantages compared to more conventional DBF SAR systems using planar arrays or reflector antennas. The paper focuses on the spaceborne DBF SAR architecture using a reflectarray antenna designed for the imaging platform. DBF SAR system parameters, an imaging scenario and a reflectarray antenna model are described in detail. The results of a performance analysis of the SAR system are presented and discussed in the paper.