A theoretical and experimental study of feedhorn for an earth station antenna
Abstract
Design features of a periscope-feed, 32 m earth station antenna are described and extensive trial data are reported. The tests were targeted at characterizing the effects of the polarization and cross-polarization radiation patterns and tolerances selected between the antenna elements. A feedhorn radiated to four mirrors which redirected the signal toward the subreflector, or focused signals for reception. The mirrors form the periscope for the system. The performance effects of using combinations of elliptical and planar mirrors are discussed. No significant losses were observed in variations of all the designs examined, provided the feedhorn was suitably configured for the antenna.
- Publication:
-
Revue Technique Thomson CSF
- Pub Date:
- March 1985
- Bibcode:
- 1985RvT....17..111B
- Keywords:
-
- Antenna Design;
- Antenna Feeds;
- Waveguide Antennas;
- Amplitude Distribution Analysis;
- Antenna Radiation Patterns;
- Earth Terminals;
- Ellipticity;
- Mirrors;
- Polarizers;
- Tolerances (Mechanics);
- Communications and Radar