Wide-angle sidelobe envelopes of a Cassegrain antenna
Abstract
The wide-angle sidelobe envelope of a high-efficiency Cassegrain antenna is computed on the basis of a relatively simple analysis. The model selected for analysis typifies the antenna designs presently employed as satellite communications earth terminals. Individual contributions to the sidelobe envelope, such as subreflector support blocking, are identified and characterized. The composite wide-angle envelope of the peak sidelobe levels is then calculated by summing the individual contributors. The results are compared with experimental data and the agreement is shown to be good.
- Publication:
-
COMSAT Technical Review
- Pub Date:
- May 1976
- Bibcode:
- 1976COMTR...6...71K
- Keywords:
-
- Antenna Design;
- Cassegrain Antennas;
- Communication Satellites;
- Ground Stations;
- Satellite Antennas;
- Sidelobes;
- Antenna Radiation Patterns;
- Computer Aided Design;
- Design Analysis;
- Microwave Antennas;
- Reflectors;
- Spherical Waves;
- Space Communications, Spacecraft Communications, Command and Tracking