Fractal Reflectarray Antennas: State of Art and New Opportunities

Figure 1

Simulated fractal reflectarray unit cells ( GHz, , and thickness = 1.524 mm): (a) variable size fractal patches; (b) comparison between reflection phase curves versus patch variation percentage () computed for Koch-square, Koch-triangle, and Minkowski patches; (c) comparison between reflection coefficient responses versus computed for Minkowski and square patches.

(a)

(b)

(c)