A new approach to the analysis of random errors in aperture antennas
Abstract
A closed form vector expression has been derived for the mean power pattern radiated from an aperture with random perturbations. The expression is in terms of the Fourier transforms of three unrestricted functions: (1) the vector electric field of the unperturbed aperture, (2) the scattering dyadic of one of N defects, and (3) the probability density function of the position of a defect. These functions can be represented by measurement data as well as by simple analytical functions. In particular, the scattering matrix of an actual physical defect can be measured and used in the model. The derivation was made possible by the fact that the aperture mean and correlation functions take the form of convolution integrals.
 Publication:

IEEE Transactions on Antennas and Propagation
 Pub Date:
 August 1984
 DOI:
 10.1109/TAP.1984.1143418
 Bibcode:
 1984ITAP...32..857T
 Keywords:

 Antenna Design;
 Antenna Radiation Patterns;
 Apertures;
 Error Analysis;
 Fourier Transformation;
 Random Errors;
 Amplitude Distribution Analysis;
 Convolution Integrals;
 Design Analysis;
 Perturbation Theory;
 Phase Error;
 Probability Density Functions;
 S Matrix Theory;
 Communications and Radar