A Ka-Band Spaceborne Synthetic Aperture Radar Instrument: A modular sparse array antenna design

article






Bekers, D.J.

Jacobs, S.

Monni, S.

Bolt, R.J.

Fortini, D.

Capece, P.

Toso, G.
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.
Topics












Antenna phased arraysMicrowave antennasRadar antennasSpace-based radarActive arraysActive controlIndustrial productionKa bandPhased array antennasSpaceborne synthetic aperture radarsSparse arraysThermo-mechanical designSynthetic aperture radar
TNO Identifier
869616
Repository link
https://resolver.tno.nl/uuid:9fcf159a-ca3f-4c43-9a84-d1051e983264
ISSN
10459243
Source
IEEE Antennas and Propagation Magazine, 61(5), pp. 97-104.
Publisher
IEEE Computer Society
Article nr.
8817964
Pages
97-104
Files
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