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Large SAR Membrane Antennas with Lightweight Deployable Booms

Leipold, Manfred and Sickinger, Christoph and Runge, Hartmut (2005) Large SAR Membrane Antennas with Lightweight Deployable Booms. In: Proceedings of the 28th ESA Antenna Workshop on Space Antenna Systems and Technologies. 28th ESA Antenna Workshop on Space Antenna Systems and Technologies, 2005-05-31 - 2005-06-03, Noordwijk, The Netherlands.

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At the DLR Institute of Composite Structures and Adaptive Systems and the company Kayser-Threde extremely lightweight and stiff deployable carbon fibre-reinforced plastics (CFRP) booms and deployment mechanisms have been developed. The main target application is to develop an ultra-light weight solar sail for deep space satellite propulsion. Based on the successful development and ground-testing of a 20m x 20m deployable solar sail structure the in-orbit verification of the deployment principle and mechanisms is now being planned for launch in 2007. Kayser-Threde in collaboration with DLR has most recently completed a phase-B study of the solar sail project under ESA/ESTEC contract. In addition, mission and design studies have been performed at Kayser-Threde for ultra-light weight structures which can reach 100m x 100m in free space where a reflective, thin polyimide membrane is unfolded using DLR's advanced CFRP booms. Synthetic Aperture Radar (SAR) satellites require large and long antennas which in turn require a large satellite bus as well as a launcher with a large fairing. This is especially true for lower frequency SARs such as L-Band, where antenna sizes of typically 12m x 3m are required. The cost for such a SAR mission could be reduced significantly if the antenna and its deployment and support structure would be lightweight and could be folded during launch. The membrane antenna concept has been demonstrated in Canada by the CSA and EMS Technologies, and in the US by JPL. Receive only antennas are of interest for micro satellites which fly in a formation with a large active SAR satellite in order to perform SAR interferometry in a "Cartwheel" configuration. However, research has also been done for active phased array membrane antennas. The paper provides a first concept for a deployment and support structure for a L-Band SAR membrane antenna. Estimates for the mass and the achievable stiffness are provided.

Item URL in elib:https://elib.dlr.de/50101/
Document Type:Conference or Workshop Item (Speech, Paper)
Title:Large SAR Membrane Antennas with Lightweight Deployable Booms
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Leipold, ManfredKayser-Threde GmbHUNSPECIFIED
Date:31 May 2005
Journal or Publication Title:Proceedings of the 28th ESA Antenna Workshop on Space Antenna Systems and Technologies
Refereed publication:No
Open Access:No
Gold Open Access:No
In ISI Web of Science:No
EditorsEmailEditor's ORCID iD
Keywords:Synthetic Apperture Radar, L-Band Antenna, Deployable Booms, Solar Sail
Event Title:28th ESA Antenna Workshop on Space Antenna Systems and Technologies
Event Location:Noordwijk, The Netherlands
Event Type:international Conference
Event Dates:2005-05-31 - 2005-06-03
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Space (old)
HGF - Program Themes:W - no assignment
DLR - Research area:Space
DLR - Program:W - no assignment
DLR - Research theme (Project):W - no assignment (old)
Location: Braunschweig
Institutes and Institutions:Institute of Composite Structures and Adaptive Systems > Composite Technology
Deposited By: Sickinger, Christoph
Deposited On:25 Jul 2007
Last Modified:27 Apr 2009 14:07

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