Transient Effects in Reflector Antennas,
Abstract
Reflector antenna transient times are investigated. The current build-up transient time, D2/16fc, is important off-axis, and is related to the pattern build-up transient time which varies with pattern angle. Both transient times vary with f/D, and increase directly with D/Lambda. The pattern transient time, during which the sidelobe structure is established, while zero on-axis, may be larger for large angles than the current transient time. These transient times must be considered in the design of wideband systems as they may affect signal fidelity at the edges of the main beam, and noise, clutter, and signal in the sidelobe region.
Document Details
- Document Type
- Technical Report
- Publication Date
- Feb 01, 1992
- Accession Number
- ADP007437
Entities
People
- R. C. Hansen