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Proceedings Paper

Design of carbon fiber composite antenna dishes
Author(s): Jingquan Cheng
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Paper Abstract

For millimeter wavelength antennas, solar radiation is a very important source of serious surface, phase, and pointing distortions. To reduce these distortions, carbon fiber composites are widely used in some existing and newly designed millimeter wavelength antennas. However, carbon fiber reinforced composites (CFRP) are different from other isotropic structural materials. Their properties are direction dependent; in the fiber direction, very favorable; perpendicular to the fibers, less favorable. Carbon fiber composite joints are also complex and costly. This paper discusses the properties of carbon fiber structure members, such as: tubes, beams, cones, thin plates, and honeycomb sandwiched thick plates. Comparisons are provided both from the structural and thermal points of view. The paper also gives the stress distribution of a simple composite glued joint.

Paper Details

Date Published: 3 July 2000
PDF: 8 pages
Proc. SPIE 4015, Radio Telescopes, (3 July 2000); doi: 10.1117/12.390457
Show Author Affiliations
Jingquan Cheng, National Radio Astronomy Observatory (United States)

Published in SPIE Proceedings Vol. 4015:
Radio Telescopes
Harvey R. Butcher, Editor(s)

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