Dual band diversity wlan antenna system for laptop computers, printers and similar devices

A dual band antenna device comprising.

• a dielectric substrate having-comprising opposed first and second surfaces;
• a groundplane disposed on the second surface;
• a bifurcated planar inverted-L antenna (PILA) component mounted on the first surface and electrically connected to the groundplane, wherein the PILA component is electrically connected to the groundplane and comprises first and second electrically connected arms;
• and
• a dielectric pellet comprising a surface connected to the first and second arms, wherein the dielectric substrate includes an aperture that is disposed beneath the dielectric pellet, wherein the pellet is connected to a coaxial feed line, and wherein the first arm of the PILA component contacts a different area of the surface of the dielectric pellet than the second arm, the PILA also being electrically connected to the groundplane.