Conception d’ une Antenne Intelligente

This work introduces a novel electromagnetic optimization technique using Taguchi?s method. The advantage of Taguchi?s optimization technique is the ability of solving problems with a high degree of complexity using small number of experiments in the optimization process. Taguchi?s method is easy to implement and converges to the desired goal quickly. To demonstrate this technique, a linear antenna array is optimized to realize a null control pattern and a sector beam pattern. It is found that Taguchi?s method is simple to implement, and it converges to the desired patterns quickly. This method is an excellent candidate for optimizing electromagnetic (EM) applications. First we give the path that finds expression radiation pattern as a function of the basic features of each element, the geometry of the antennas in the array and the law of weights assigned to all radiating elements. Then some traditional methods of synthesis are reminded in the case of network plans. These methods are based on mathematical techniques varied. These methods correspond to each specific synthesis problem. Then, we present the effectiveness of the Taguchi method to synthesis level, speed and in the sense that it is intended to take into account all kinds of constraints specifications of these adaptive systems: adapting the distribution of the energy radiated by focusing maximum power only in the direction of the user and a minimum gain in the direction of interfering signals. Completing the work by performing an electronic scanning antenna prototyping.