Design of An Array-fed Multi-beam Reflector Antenna Based On Genetic Algorithm

In order to adapt to the development of high integration and multi-function of satellite platform, an array-fed multi-beam reflector antenna is designed in this paper. Based on the radiation pattern feature extraction method, the objective optimization function of genetic algorithm is established. The algorithm can effectively reduce the iteration steps and improve the efficiency of beam optimization. Then, a reflector antenna with 262 feeds and 600 beams is designed and verified by simulation.