Sector beam from a non-uniformly spaced symmetric array using phase only control
Abstract
A narrow beam with a sidelobe level of -33 dB is generated from a sinusoidally spaced symmetric array of isotropic radiators using a raised cosine on a pedestal type amplitude distribution. Keeping this amplitude distribution unaltered, a narrow beam is transformed to a sector beam in a desired range using an additional nonlinear phase distribution. This nonlinear phase distribution is evaluated using the stationary phase method. In this paper, an attempt is made to study the effect of sinusoidal spacing of radiating elements in a symmetric array on the desired beam shape. Radiation patterns realized from a selected array are plotted along with those of a uniformly spaced array of the same number of elements.
- Publication:
-
International Conference on Radar
- Pub Date:
- 1986
- Bibcode:
- 1986rada.conf..556R
- Keywords:
-
- Antenna Arrays;
- Antenna Radiation Patterns;
- Radar Antennas;
- Radar Beams;
- Communications and Radar