A planar inverted-F antenna includes a body (300), a feed wire (400), a shorting strip (500), and a metallic ground plane (200). The body is used for radiating and receiving radio frequency signals, and includes a radiating end (310) and a shorting end (320). The shorting end is electrically connected to a metallic ground plane by the shorting strip. The feed wire is electrically connected to the body. The body includes bent portions (330, 340) disposed between the shorting end and the radiating end. Due to the bent portions, the planar inverted-F antenna has a compact profile and a smaller size. In addition, the bent portions generate an inductance effect that can regulate the input impedance of the planar inverted-F antenna.