Multi-band planar inverted-F (PIFA) antennas and systems with improved isolation

摘要

Exemplary embodiments are provided of multi-band Planar Inverted-F antennas and antenna systems including the same. In an exemplary embodiment, a Planar Inverted-F antenna (PIFA) generally includes a planar radiator or upper radiating patch element having a slot. A lower surface of the PIFA is spaced apart from the upper radiating patch element. First and second shorting elements electrically connect the planar radiator to the lower surface. The PIFA also includes a feeding element electrically connected between the upper radiating patch element and the lower surface. The PIFA may be mounted on a ground plane that is larger than the lower surface of the PIFA.

主权项

1. A planar inverted-F antenna (PIFA) operable within at least a first frequency range and a second frequency range different than the first frequency range, the PIFA comprising:
an upper radiating patch element having a slot; a first shorting element electrically connected to the upper radiating patch element; a second shorting element electrically connected to the upper radiating patch element, the second shorting element having a non-flat configuration between the upper radiating patch element and a lower surface such that a length of the second shorting element between the upper radiating patch element and the lower surface is greater than a spaced distance separating the upper radiating patch element and the lower surface; and a feeding element electrically connected to the upper radiating patch element, the feeding element is defined as being an entire side of the PIFA between the upper radiating patch element and the lower surface.