Synthesis of unequally spaced printed antenna arrays : by modeling of the feed network

Abstract EN

This paper refers to the synthesis of unequally spaced printed antenna arrays by using the principle of modeling of the feeding circuits by microstrip lines.

The synthesis approach developed for this type of array makes it possible to approach an optimal desired pattern by modifying the sources' spatial distribution and is one in which the excitation by microstrip line of each source of the array is related to its localization.

This approach considers the characteristics of the elementary source and its feeder as well as the practical realization constraints through a rigorous modeling of the antenna array and its feeding circuit.

A synthesis method for this type of antenna array is developed.

The synthesis problem is solved by the use of the nonlinear technique of relaxation optimization with constraints.

Various synthesis results corresponding to various configurations of supply (at the end, at the center, in series and in parallel) are then presented.