Patent ID: 9236648
Filing Date: 2016-01-12
CPC Classification: H01Q

Claim Text:
1. Apparatus, comprising: a conductive element having a resonant opening; at least two antenna resonating elements that are located in the resonant opening; and a parasitic antenna element located in the resonant opening, wherein the parasitic antenna element is formed within the resonant opening at a predetermined distance relative to a side of the resonant opening such that the parasitic antenna element shorts the resonant opening at a resonant frequency of the at least two antenna resonating elements to adjust an effective length of the resonant opening to the predetermined distance at the resonant frequency, wherein each of the antenna resonating elements comprises a dual-band antenna resonating element that operates in a first communications band that includes the resonant frequency and a second communications band, the conductive element comprises conductive housing portions in an electronic device, and the resonant opening comprises a closed slot that includes dielectric clutch barrel structures associated with the electronic device.