Miniaturization of UWB Antennas on Organic Material

Figure 4

Surface current () distributions on CPW-fed slot antenna at (a) 5 GHz and (b) 9 GHz, cactus antenna at (c) 5 GHz and (d) 9 GHz, and miniaturized cactus antenna at (e) 5 GHz and (f) 9 GHz.

(a)

(b)

(c)

(d)

(e)

(f)