(a)
(b)
(c)
(d)
(e)
(f)
(g)
(h)
(i)
(j)
Figure 11:
Measured radiation patterns of the proposed antenna—(a)
GHz, (b)
GHz, (c)
GHz, (d)
GHz, (e)
GHz, (f)
GHz, (g)
GHz, (h)
GHz, (i)
GHz, and (j)
GHz.