A beam waveguide linearly polarized KU band feed system
Abstract
The linearly polarized KU band beam waveguide feed system considered was designed for use with large Cassegrain antennas typical of those associated with satellite comunications earth stations. The beam waveguide technique permits fixed ground installations of the transmitters and low noise receivers and eliminates the large equipment room usually mounted behind the reflector vertex. The feed system consists of a tapered corrugated wall horn, a matching network, a TE21 mode coupler, three differential phase shifters, a choke coupled rotatable, orthogonal mode transducer, and a servo amplifier system. Attention is given to TE21 mode coupler operation, TE21 mode coupling and directivity, a horn description, a beam wave description, and polarization control.
- Publication:
-
Antenna Applications Symposium
- Pub Date:
- 1982
- Bibcode:
- 1982anap.symp.....F
- Keywords:
-
- Antenna Feeds;
- Beam Waveguides;
- Cassegrain Antennas;
- Linear Polarization;
- Superhigh Frequencies;
- Coupled Modes;
- Directivity;
- Ground Stations;
- Horn Antennas;
- Low Noise;
- Microwave Coupling;
- Satellite Transmission;
- Transmitter Receivers;
- Communications and Radar