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

Figure 11

Spatial distribution of the real part of the Poynting vector in the -plane at the air-dielectric interface. Working frequency (a)  GHz, (b)  GHz, and (c)  GHz. An interesting guiding effect of the electromagnetic energy along the back-side contour of the antenna arms and a quasi-traveling field behaviour enhanced by the metal reflector is observed in the radiated power density flux at the frequency of  GHz.

(a)

(b)

(c)