A Compact Size 4–19.1 GHz Heart Shape UWB Antenna with Triangular Patches

Figure 8

Normalized measured radiation patterns of the antenna at (a) 3 GHz, (b) 4.5 GHz, (c) 6 GHz, (d) 7.5 GHz, (e) 9 GHz, (f) 10.5 GHz, (g) 12 GHz, and (h) 14 GHz.

(a)

(b)

(c)

(d)

(e)

(f)

(g)

(h)