An investigation of the effects on the far-field energy distribution by various combinations of array shape and illumination functions
Abstract
A study of the far-field energy distribution with respect to array-shape and illumination function is made. Various weighting functions including the Kaiser, Taylor, Triangular, and Hamming functions may be chosen in conjunction with the aperture shape and error function to give an antenna designer a very broad range of possible antenna combinations that may be desired for a particular requirement in the far-field. From the specific aperture input the far-field energy pattern is calculated using a 2-D FFT which is an accurate representation of the Fresnel-Kirchhoff diffraction integral assuming appropriate approximations which apply in the range of interest. Examples are shown for various antenna patterns.
- Publication:
-
Imaginative Engineering thru Education and Experience
- Pub Date:
- 1977
- Bibcode:
- 1977ieee.conf...63F
- Keywords:
-
- Antenna Arrays;
- Antenna Radiation Patterns;
- Energy Distribution;
- Far Fields;
- Apertures;
- Fourier Transformation;
- Fresnel Integrals;
- Illumination;
- Communications and Radar