1.2 m Shielded Cassegrain Antenna for Close-Packed Radio Interferometer

  title={1.2 m Shielded Cassegrain Antenna for Close-Packed Radio Interferometer},
  author={Patrick M. Koch and Philippe Raffin and Yau-De Ted Huang and Ming-Tang Chen and Chih-Chiang Han and Kai-yang Lin and Pablo Altamirano and Christophe Granet and Paul T.P.Ho and Chih-Wei L.Huang and Michael J. Kesteven and Chao-Te Li and Yu-Wei Liao and G. Liu and Hiroaki Nishioka and Ching Long Ong and Peter Oshiro and Keiichi Umetsu and Fu-Cheng Wang and Jiun-Huei Proty Wu},
  journal={Publications of the Astronomical Society of the Pacific},
Interferometric millimeter observations of the cosmic microwave background and clusters of galaxies with arcminute resolutions require antenna arrays with short spacings. Having all antennas co-mounted on a single steerable platform sets limits to the overall weight. A 25 kg lightweight novel carbon-fiber design for a 1.2 m diameter Cassegrain antenna is presented. The finite element analysis predicts excellent structural behavior under gravity, wind, and thermal load. The primary- and… Expand
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