A Kevlar-49 epoxy composite frequency-selective-surface subreflector was developed for the high gain antenna used on the Voyager spacecraft. The Kevlar-49 material was selected for this sandwich structure because a dielectric material was required, and the use of Kevlar-49 resulted in a composite sandwich with a low thermal coefficient of expansion and reduced weight over an equivalent fiberglass construction. A detailed description and the results of the development program are given and include the design requirements for the structure, the development testing of the materials that led to the final design configuration, and the processes used to fabricate this advanced composite spacecraft antenna component.
Development of a low expansion, composite antenna subreflector with a frequency selective surface
Entwicklung einer Raumschiffantenne aus einem Verbundwerkstoff mit geringem Dehnungsfaktor - Subreflektor mit frequenzselektiver Oberflaeche
1977
15 Seiten, 13 Bilder, 8 Tabellen, 6 Quellen
Conference paper
English
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