3D pattern at
6.02GHz are shown. The antenna resonates at two frequencies
with appreciable bandwidths of 180MHz and 200MHz and
deep return loss (S11 in dB) values of -23.15dB and -16.07dB.
The VSWR at the resonances 1.14 (at 6.02GHz) and 1.373 (at
12.26GHz) are appreciable showing the well matched
conditions.