Wide Scan, Wide band Arrays with Self-Dual Point-Like Elements

The unique matching properties of self-dual structures provide a rich platform to engineer and control the distribution of the power inside such structures. For instance, narrow gaps embedded inside a self-dual structure can be designed to predominantly carry the incident energy into the outbound interface of the structure. This phenomenon can be used to create quasi-matched radiating apertures made of point-like radiating elements. These elements possess patterns that are quite similar to those of an isolated element in free space, being fairly well-behaved and free of blind spots. These characteristics are envisioned to be of great interest for highly demanding applications of phased arrays.