Application of modern Aperture Integration (AI) and Geometrical Theory of Diffraction (GTD) techniques for analysis of large reflector antennas
Abstract
The application of aperture integration (AI) and geometrical theory of diffraction (GTO) techniques to analyze large reflector antennas is outlined. The following techniques were used: computer modeling, validation of analysis and computer codes, computer aided design modifications, limitation on the conventional aperture integration (AIC) method, extended aperture integration (AIE) method, the AIE method for feed scattering calculations, near field probing predictions for 15 meter model, limitation on AIC for surface tolerance effects, aperture integration on the surface (AIS) method, and AIC and GTD calculations for compact range reflector.
- Publication:
-
In NASA. Langley Research Center Large Space Antenna Systems Technol
- Pub Date:
- April 1985
- Bibcode:
- 1985lsas.rept..675R
- Keywords:
-
- Apertures;
- Diffraction;
- Large Space Structures;
- Reflector Antennas;
- Reflectors;
- Spacecraft Antennas;
- Computer Aided Design;
- Electromagnetic Fields;
- Mathematical Models;
- Scattering;
- Communications and Radar