Title
A Ka-Band Spaceborne Synthetic Aperture Radar Instrument: A modular sparse array antenna design
Author
Bekers, D.J.
Jacobs, S.
Monni, S.
Bolt, R.J.
Fortini, D.
Capece, P.
Toso, G.
Publication year
2019
Abstract
The article presents the design of a Ka-band synthetic aperture radar (SAR) instrument based on innovative phased-array antennas, with steering capability in azimuth and elevation. To limit the complexity and costs associated with conventional large active arrays with regular layouts, a sparse array concept is presented. The proposed approach results in a 40% reduction in the number of active controls, with a marginal reduction in performance compared to conventional phasedarray solutions previously developed for SAR instruments. Additionally, a preliminary thermomechanical design is presented to assess the challenges associated with the industrial production and to identify options for accommodation on the spacecraft. © 2019 IEEE.
Subject
Antenna phased arrays
Microwave antennas
Radar antennas
Space-based radar
Active arrays
Active control
Industrial production
Ka band
Phased array antennas
Spaceborne synthetic aperture radars
Sparse arrays
Thermo-mechanical design
Synthetic aperture radar
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http://resolver.tudelft.nl/uuid:9fcf159a-ca3f-4c43-9a84-d1051e983264
TNO identifier
869616
Publisher
IEEE Computer Society
ISSN
1045-9243
Source
IEEE Antennas and Propagation Magazine, 61 (5), 97-104
Article number
8817964
Document type
article