This paper presents a new reconfigurable multiband antenna. The slot dipole antenna is capable to operate at 2.4 GHz, 3.5 GHz and/or 5.2 GHz. This antenna can also be switched to operate at the single or dual band. Six switches are placed on the antenna structures to achieve frequency reconfigurability. While the operating frequency of this antenna is switched from triple-band to dual/single-band, the radiation pattern of the antenna will remain unchanged. The analyses of the antenna were based on the return loss, surface current distribution, and radiation pattern with gain performance.