Design of carbon fiber composite antenna dishes

Jingquan Cheng

doi:10.1117/12.390457

3 July 2000 Design of carbon fiber composite antenna dishes

Jingquan Cheng

Proceedings Volume 4015, Radio Telescopes; (2000) https://doi.org/10.1117/12.390457
Event: Astronomical Telescopes and Instrumentation, 2000, Munich, Germany

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.

Citation Download Citation

Jingquan Cheng "Design of carbon fiber composite antenna dishes", Proc. SPIE 4015, Radio Telescopes, (3 July 2000); https://doi.org/10.1117/12.390457

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