A Butterfly-Shaped Wideband Microstrip Patch Antenna for Wireless Communication

Figure 15

Simulated and measured radiation patterns of the antenna at 4.4 GHz, 5.5 GHz, and 6.2 GHz in the -planes.

(a) 4.4 GHz

(b) 5.5 GHz

(c) 6.2 GHz