High-Isolation UWB MIMO Antenna with Multiple X-Shaped Stubs Loaded between Ground Planes

Figure 10

Surface current distribution of two-port antenna with different numbers of X-shaped stubs at 9 GHz. (a) Num = 1. (b) Num = 2. (c) Num = 3. (d) Num = 4.

(a)

(b)

(c)

(d)