Design of a Compact Ultrawideband U-Shaped Slot Etched on a Circular Patch Antenna with Notch Band Characteristics for Ultrawideband Applications

Figure 6

Measured radiation pattern of the proposed antenna. (a) 3.26 GHz. (b) 3.77 GHz. (c) 4.41 GHz. (d) 5.02 GHz.

(a)

(b)

(c)

(d)