On the performance degradation of a low sidelobe phased array due to correlated and uncorrelated errors
Abstract
Attention is given to the relationship between the sidelobe level and the array random errors. In particular, the limitation on the sidelobe level is presented as a function of the array errors. It can be seen intuitively that this limitation must be a function of the desired sidelobe level, the number of elements in the array, and the nature of these errors. Because these errors are generally random in nature, the results are in terms of probability distributions. It is shown that the amplitude distribution of the radiation pattern for both a linear array and a planar array is Rician. Figures are included showing a set of universal curves for such distributions. The curves are given in different sigma values and are normalized to the designed sidelobe level. It is also shown that the sigma value for both linear arrays and planar arrays has a similar form, which is a function of errors and array illuminations.
 Publication:

Radar82
 Pub Date:
 1982
 Bibcode:
 1982rpi..conf..355H
 Keywords:

 Antenna Arrays;
 Antenna Design;
 Error Analysis;
 Phased Arrays;
 Sidelobe Reduction;
 Probability Distribution Functions;
 Random Errors;
 Communications and Radar