High-performance corrugated feed horn for the unattended earth terminal
Abstract
This paper describes a high-performance corrugated feed horn developed for the antenna of the unattended earth terminal (UET). The horn was designed to provide optimal illumination of a 32-ft offset-fed parabolic torus over the 3.7- to 4.2- and 5.9- to 6.4-GHz frequency bands and at the same time to be suitable for use in multiple-feed configurations in which sets of independently steered beams are generated by means of a fixed reflector and moveable feeds. The horn is characterized by an axially symmetric beamwidth that is frequency independent over a broad band, a true phase center whose location is also independent of frequency, and negligible sidelobes. It is exceptionally small and compact for its type. Theory and design techniques are discussed and performance data are presented in the paper.
- Publication:
-
COMSAT Technical Review
- Pub Date:
- November 1974
- Bibcode:
- 1974COMTR...4..283P
- Keywords:
-
- Antenna Design;
- Antenna Feeds;
- Antenna Radiation Patterns;
- Horn Antennas;
- Microwave Antennas;
- Angular Distribution;
- Ground Stations;
- Impedance Matching;
- Polarization Characteristics;
- Propagation Modes;
- Reflectors;
- Satellite Networks;
- Wideband Communication;
- Communications and Radar