Beam scanning and focal surfaces for parabolic cylinder reflectors
Abstract
The location of the focal surfaces for parabolic cylinder reflectors with Gaussian tapered illumination is investigated and compared with that obtained by numerical simulation. It is found that an idealized surface that holds approximately in most practical cases is the circle described on the vertex-focus line as diameter. Formulas are derived for the change of gain and beamwidth with scan angle.
- Publication:
-
IEEE Transactions on Antennas and Propagation
- Pub Date:
- November 1982
- DOI:
- 10.1109/TAP.1982.1142957
- Bibcode:
- 1982ITAP...30.1073W
- Keywords:
-
- Antenna Design;
- Computer Aided Design;
- Parabolic Antennas;
- Parabolic Reflectors;
- Steerable Antennas;
- Antenna Radiation Patterns;
- Cylindrical Bodies;
- Digital Simulation;
- Focusing;
- Scanning;
- Surface Geometry;
- Communications and Radar