A novel technique for the computation of secondary patterns of reflector antennas
Abstract
A new and efficient technique for computing secondary patterns of antennas with known aperture distributions is described. The method is extendable to parabolic reflector antennas with a given surface-current distribution. The method is also useful for calculating the far-field patterns of a Cassegrainian antenna system because the surface current distribution on the main reflector can be readily obtained by an efficient launching and scanning scheme briefly described herein. The Fast Fourier Transform (FFT) algorithm is used to compute the coefficients of expansion of a series representing the radiation pattern.
- Publication:
-
2nd International Conference on Antennas and Propagation
- Pub Date:
- 1981
- Bibcode:
- 1981icap.conf..481M
- Keywords:
-
- Antenna Radiation Patterns;
- Cassegrain Antennas;
- Computer Aided Design;
- Far Fields;
- Fast Fourier Transformations;
- Parabolic Reflectors;
- Reflector Antennas;
- Antenna Design;
- Current Distribution;
- Parabolic Antennas;
- Reflectors;
- Run Time (Computers);
- Series Expansion;
- Communications and Radar