Innovative Mechanical Design Strategy for Actualizing 80 kg-Class X-Band Active SAR Small Satellite of S-STEP

The Small SAR Technology Experimental Project (S-STEP) mission aims to develop a new (space-based 80 kg-class active X-band synthetic aperture radar (SAR)) satellite with a main imaging mode of 1 m resolution stripmap. In the S-STEP mission, to achieve the design goal of developing faster, cheaper,...

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Bibliographic Details
Published in:Aerospace 2021-06, Vol.8 (6), p.149
Main Authors: Kwon, Seong-Cheol, Son, Ji-Hae, Song, Sung-Chan, Park, Jin-Han, Koo, Kyung-Rae, Oh, Hyun-Ung
Format: Article
Language:English
Subjects:
Active satellites
Antennas
Collaboration
Design
Flat plates
new space
Random vibration
Satellites
small satellite
Small satellites
Spacecraft
Spacecraft vibration
Structural analysis
Superhigh frequencies
Synthetic aperture radar
synthetic aperture radar (SAR)
Vibration analysis
whole spacecraft vibration isolation
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Summary:The Small SAR Technology Experimental Project (S-STEP) mission aims to develop a new (space-based 80 kg-class active X-band synthetic aperture radar (SAR)) satellite with a main imaging mode of 1 m resolution stripmap. In the S-STEP mission, to achieve the design goal of developing faster, cheaper, better, and lighter small SAR satellite systems, innovative thermo-mechanical design approaches have been proposed and investigated. The major design approaches are the bus-payload integrated flat plate-type structure, multifunctional transmit/receive (TR) module, and dedicated vibration-free orbit deployer (VFOD) with the function of whole spacecraft vibration isolation. To validate the feasibility of the innovative mechanical design of S-STEP, a structural analysis considering launch and on-orbit environments is performed. In addition, development test results are presented to confirm the effectiveness of the proposed design approach for VFOD.
ISSN:2226-4310
2226-4310
DOI:10.3390/aerospace8060149