Study On Cultural Algorithms Which Applied To The Pattern Synthesis Of Array Antenna

The comprehensive orientation image of Antenna is an important aspect of the antenna designing. Traditional synthesis method already cannot satisfy the performance requirements of modern antenna. The culture algorithm is used in the synthesis of antenna directed graph, the design of the antenna which can not only satisfy requirement also improve the efficiency. This paper aims to explore cultural method which can be used for antenna array of orientation image integrated.Firstly, in this paper, the basic principle of the antenna array and some of the traditional comprehensive approach are analyzed and summarized. Traditional antenna design approach is mainly based on a given sidelobe level design of the width of the narrowest main lobe of antenna arrays, or according to the given main lobe width, designing the lowest sidelobe level of antenna array. However, due to its single function, use of non-flexible antenna pattern in the modern integrated intelligent application is more difficult.Secondly, the genetic algorithm is used to orientation image antenna array, through comprehensive simulation analysis found that the following respects. In one hand is genetic algorithm to solve nonlinear, global optimization, large space complexities with traditional methods when not possess unique superiority, will be better able to solve these problems. On the other hand is genetic algorithms in comprehensive problem solving antenna orientation image appeared when large amounts of calculation, slow convergence speed and so on is insufficient, but also needs further improvement.Finally, according to genetic algorithm orientation image comprehensive array antenna problems in the cultural algorithm, this paper applied to the comprehensive array antenna in orientation image. The simulation of computer shows that the algorithm antenna pattern obtained by the maximum relative sidelobe level is low, and has fast convergence speed.