A complete optimization-loop, including feeders, of antenna systems based on reflectors

In the design process of a complete antenna system based on reflectors, the feed´s real performance is usually included once the reflectors have been optimized with an ideal feed. The paper proposes to include the feed in the optimization loop of the whole system, by means of a parametric definition of the feeder. To perform the optimization, the parametric feed is considered as an additional surface, which receives some desired electric field that is analyzed to modify the feed definition parameters properly in order to reduce the difference between the desired and the new generated field distribution over a planar surface nearby the focal point of the system. At the end of the optimization process, all the elements of the whole antenna system, reflectors and feed, are totally defined and perfectly coupled.