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X/Ka-Band Dual-Polarized Digital Beamforming Synthetic Aperture Radar

Mao, Chunxu, Gao, Steven, Tienda, Carolina, Glisic, Srdjan, Arnieri, Emilio, Penkala, Piotr, Krstic, Milos, Boccia, Luigi, Patyuchenko, Anton, Dominuez, Arancha, and others. (2017) X/Ka-Band Dual-Polarized Digital Beamforming Synthetic Aperture Radar. IEEE Transactions on Microwave Theory and Techniques, 65 (11). pp. 4400-4407. ISSN 0018-9480. (doi:10.1109/TMTT.2017.2690435) (KAR id:60971)

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This paper presents a digital beamforming (DBF) synthetic aperture radar (SAR) for future spaceborne earth observation systems. The objective of the DBF-SAR system is to achieve a low cost, lightweight, low-power consumption, and dual-band (X/Ka) dual-polarized module for the next-generation spaceborne SAR system in Europe. The architectures and modules of the proposed DBF-SAR system are designed according to a realistic mission scenario, which is compatible with the future small/microsatellites platforms. This system fills an important gap in the conception of the future DBF-SAR, facilitating a high level of integration and complexity reduction. The proposed system is considered not only the first demonstrator of a receive-only spaceborne DBF system, but also the first X/Ka-band dual-polarized SAR system with shared aperture. This paper presents a description of the proposed instrument hardware and first experimental validations. The concept and design of the DBF multistatic SAR system are discussed and presented first, followed by the design of subsystems such as DBF networks, microwave integrated circuit, and antennas. Simulated and measured results of the subsystems are presented, demonstrating that the proposed SAR instrument architecture is well-suited for the future SAR applications.

Item Type: Article
DOI/Identification number: 10.1109/TMTT.2017.2690435
Uncontrolled keywords: Dual-band, dual-polarized, digital beamforming (DBF), synthetic aperture radar (SAR).
Divisions: Divisions > Division of Computing, Engineering and Mathematical Sciences > School of Engineering and Digital Arts
Depositing User: Steven Gao
Date Deposited: 21 Mar 2017 09:02 UTC
Last Modified: 16 Feb 2021 13:44 UTC
Resource URI: (The current URI for this page, for reference purposes)
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