Citation

Abstract

This article summarizes a series of calculations that were carried out in order to determine the performance of the new dual-shaped 70-m antenna for feeds that are displaced from the focal ring. Calculations were carried out at 1.68 GHz (L-band) and 5.0 GHz (C-band) for a number of feed/subreflector configurations. The effects of feed displacement, feed pointing angle, subreflector tilt, and lateral subreflector movement are summarized, Of specific interest are gain, beam squint, and spillover noise temperature for each of the feed/subrefiector configurations described above.

Details

Volume
42-90
Published
August 15, 1987
Pages
12–20
File Size
478.9 KB