595290.fig.001a
(a)
595290.fig.001b
(b)
595290.fig.001c
(c)
Figure 1: Configuration of the proposed dual-polarized aperture coupled circular patch antenna; (a) 3D view, (b) simplified equivalent circuit model of an aperture coupled microstrip antenna, and (c) 2D view Rohacell: ,  mm; substrate: ,  mm,  mm; vertical and horizontal apertures’ dimensions or feed slot ( ):  mm.