A Low-Profile Reflector-Enhanced Drop-Shaped Printed Antenna for Wide-Band Wireless Communications

Figure 9

Antenna gain patterns in the -plane (left side) and in the -plane (right side) for the drop-shaped dipole antenna with and without reflector. Working frequency: (a)  GHz, (b)  GHz, and (c)  GHz. An enhanced quasi-traveling wave behaviour is observed in the radiation patterns relevant to the drop-shaped dipole antenna equipped with the metal reflector.

(a)

(b)

(c)