From Figs.3 and 4, although there are some slight
differences occur at the frequency band higher than 2.1GHz,
however, it seems that the characteristics of realized antenna
for resonant frequency and VSWR have good agreements
qualitatively with the numerical design result. The results show
that the proposed antenna can operate at 2 resonant
frequencies, i.e. around 1.6GHz and 2.4GHz, demonstrating
the dual frequency band capability