Synthesis of a 2D Reconfigurable Parasitic Flement Antenna

This work presents the design of a low-cost concept of reconfigurable antenna used as a test vehicle. It is based on parasitic elements to simplify the feed distribution network of reconfigurable antenna. The synthesis of this antenna consists of the stimulation of couplings to maximize the directivity in one or several given directions. A constraint on the antenna matching is also set to avoid the addition of a dedicated circuit on the driven element. A prototype with 49 elements working at 2.45GHz has been manufactured and measured. The results present a very good agreement. The originality of this work is based on the important number of parasitic elements and on the reactive loads connected to them. These loads are synthesized to satisfy both the radiation objective and the matching constraint.