An offset dual shaped reflector with 84.5 percent efficiency
Abstract
The theoretical and experimental study of a 1.5 m offset dual shaped reflector at 31.4 GHz is summarized. An efficiency of 84.5 percent, a possible record for reflector antennas of this size, was ascertained through careful measurements. For larger low noise reflector systems, a 2 to 3 dB improvement in gain over noise temperature ratio (G/T) performance over the state-of-the-art ultralow noise ground stations and 90 percent or better aperture efficiency now appear feasible.
- Publication:
-
IEEE Transactions on Antennas and Propagation
- Pub Date:
- November 1983
- DOI:
- Bibcode:
- 1983ITAP...31..896C
- Keywords:
-
- Antenna Design;
- Antenna Radiation Patterns;
- Microwave Antennas;
- Power Gain;
- Transmission Efficiency;
- Two Reflector Antennas;
- Ground Stations;
- Horn Antennas;
- Noise Temperature;
- Performance Prediction;
- Performance Tests;
- Signal To Noise Ratios;
- Subreflectors;
- Space Communications, Spacecraft Communications, Command and Tracking