Experimental spherical near field antenna test facility, phase 2. Volume 2: Accuracy requirements evaluated from numerical simulations
Abstract
The performance of a spacecraft antenna test facility was simulated by numerical modeling of near field measurements. The result for a test antenna with 38 dB directivity can be predicted within 0.04 dB, the sidelobe level at -27 dB within 1.0 dB, and the level of the cross polarized lobe at -48 dB within 2 dB, when multiple reflections are avoided. A linear relationship between the various measurement inaccuracies and the consequential inaccuracies in the predicted far field are shown.
- Publication:
-
Final Report TICRA A/S
- Pub Date:
- October 1981
- Bibcode:
- 1981ticr.rept.....J
- Keywords:
-
- Accuracy;
- Near Fields;
- Spacecraft Antennas;
- Spherical Antennas;
- Systems Simulation;
- Test Facilities;
- Approximation;
- Cross Polarization;
- Directivity;
- Linear Prediction;
- Parameter Identification;
- Prediction Analysis Techniques;
- Sidelobes;
- Communications and Radar