Citation
Abstract
A DSN 34-meter symmetric Cassegrain antenna configuration is examined for wideband use over the frequency range of 1 to 10 GHz, rather than only at the narrow-band operational design frequencies of 2.295 GHz (S-band) and 8.448 GHz (X-band). Aperture efficiency and surface efficiency are calculated as the components determining the gain of the antenna. Noise temperature contributions arise from the ground, atmosphere, and quadripod scattering. These components are calculated as a function of frequency and elevation angle to determine a G/T (gain/system noise temperature) figure-of-merit for a nominal 34-meter antenna configuration. A computational method has been developed which will enable design of a multi-horn antenna feed system to optimally cover the 1 to 10 GHz frequency range.
Details
- Volume
- 42-80
- Published
- February 15, 1985
- Pages
- 202–219
- File Size
- 724.4 KB