elib
DLR-Header
DLR-Logo -> http://www.dlr.de
DLR Portal Home | Imprint | Privacy Policy | Contact | Deutsch
Fontsize: [-] Text [+]

A SELF-DEPLOYING AND SELF-STABILIZING HELICAL ANTENNA FOR SMALL SATELLITES

Block, Joachim and Bäger, Annette and Behrens, Jörg and Delovski, Toni and Hauer, Lars-Christian and Schütze, Martin and Schütze, Rainer and Spröwitz, Tom (2010) A SELF-DEPLOYING AND SELF-STABILIZING HELICAL ANTENNA FOR SMALL SATELLITES. IAF, International Astronautical Federation, 27.Sept. - 01.Okt. 2010, Prague, Czech Republik.

[img] PDF
692kB

Abstract

Space antennas with a helical geometry are an advantageous choice for many applications, for instance if the transmission of electromagnetic waves with a circular polarization is intended, or if signals from terrestrial objects shall be received with a high angular resolution. In all these cases the desired electromagnetic properties of a helical geometry can be combined with the mechanical advantage that the antenna acts as a compression spring, provided that its core structure has the necessary high spring stiffness but can nevertheless easily be compressed. Such an antenna has been developed by DLR Institutes in Bremen and Braunschweig together with some industrial partners for a small satellite named AISat which shall be able to pursue the position of individual ships in critical sea areas in order to improve the security of seafare trade. The development was very challenging since the antenna must expand from a stowed stack length of only 10 centimeters to a total length of 4 meters. Only a special carbonfiber core under the conductive coating and a system of stabilizing cords led to a satisfying solution. Both the self-deployment and the self-stabilization function of this innovative antenna concept have been successfully tested and verified under zero-g-conditions in the course of a parabolic flight campaign. It could be convincingly demonstrated that the helical antenna can really achieve its desired contour in weightlessness within some seconds and maintain the required stability. Beyond the current application for the AISat satellite it is therefore a quite promising concept for future satellites.

Item URL in elib:https://elib.dlr.de/66584/
Document Type:Conference or Workshop Item (Speech)
Title:A SELF-DEPLOYING AND SELF-STABILIZING HELICAL ANTENNA FOR SMALL SATELLITES
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Block, JoachimDLR, Institut für Faserverbundleichtbau und AdaptronikUNSPECIFIED
Bäger, AnnetteDLR, Institut für RaumfahrtsystemeUNSPECIFIED
Behrens, JörgDLR, Institut für RaumfahrtsystemeUNSPECIFIED
Delovski, ToniDLR Institute of Space Systems, System Development and Project Office, Bremen, Germanyhttps://orcid.org/0000-0003-4228-3830
Hauer, Lars-ChristianDLR, Institut für RaumfahrtsystemeUNSPECIFIED
Schütze, MartinSchütze-Stäbe GmbHUNSPECIFIED
Schütze, RainerSchütze-Stäbe GmbHUNSPECIFIED
Spröwitz, TomDLR, Institut für RaumfahrtsystemeUNSPECIFIED
Date:2010
Open Access:Yes
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Status:Published
Keywords:AIS, deplayable structure, helix antenna, zero g, parabolic flight
Event Title:IAF, International Astronautical Federation
Event Location:Prague, Czech Republik
Event Type:international Conference
Event Dates:27.Sept. - 01.Okt. 2010
Organizer:IAF
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: Bremen
Institutes and Institutions:Institute of Space Systems > System Analysis Space Segment
Deposited By: Behrens, Nicola
Deposited On:29 Nov 2010 06:54
Last Modified:31 Jul 2019 19:29

Repository Staff Only: item control page

Browse
Search
Help & Contact
Information
electronic library is running on EPrints 3.3.12
Copyright © 2008-2017 German Aerospace Center (DLR). All rights reserved.