Patent ID: 9502750
Filing Date: 2016-11-22
CPC Classification: H01Q

Claim Text:
1. An antenna operable in a communications band at a first frequency, comprising: an antenna ground; antenna resonating element, wherein the antenna resonating element comprises an inverted-F antenna resonating element; a parasitic antenna resonating element, wherein the parasitic antenna resonating element exhibits a resonance at a second frequency greater than the first frequency when the antenna is operated in free space, the resonance shifts to overlap the communications band at the first frequency when the antenna is loaded due to proximity to an object, and the shifted resonance reduces antenna efficiency in the communications band at the first frequency when the antenna is loaded relative to when the antenna is operated in free space; and a flexible printed circuit having opposing first and second surfaces, wherein the antenna resonating element is formed on the first surface and wherein the parasitic antenna resonating element is formed on the second surface.