100-GHz measurements of two astigmatic launchers
Abstract
Astigmatic launchers that would permit a single earth station antenna to communicate with all the satellites along the geosynchronous arc have been fabricated and measured at a frequency of 100 GHz. Good agreement between measured data and calculated values has been obtained for astigmatic corrections required by feeds displaced 18 and 29 degrees from the focus.
- Publication:
-
AT T Technical Journal
- Pub Date:
- June 1985
- Bibcode:
- 1985ATTTJ..64.1019S
- Keywords:
-
- Antenna Feeds;
- Communication Satellites;
- Launchers;
- Satellite Antennas;
- Astigmatism;
- Cassegrain Antennas;
- Electric Fields;
- Geosynchronous Orbits;
- Microwave Antennas;
- Reflectors;
- Communications and Radar