Development of Multilayer Partially Reflective Surfaces for Highly Directive Cavity Antennas: A Study

Figure 4

Photograph of the fabricated antenna: (a) reference antenna; (b) triple-layer PRS antenna; (c) printed top and bottom PRS layer design (PRS1); (d) printed middle-layer PRS design (PRS2).

(a)

(b)

(c)

(d)