Patent ID: 9024823
Filing Date: 2015-05-05
Classification: H01Q

Abstract:
1. Antenna structures in an electronic device having four edges, a width that is shorter than the length, and a height that is shorter than the width, comprising: conductive antenna structures that include a ground plane and a resonating element structure, the resonating element structure being formed from a portion of a peripheral conductive electronic device housing structure that extends across the height of the electronic device along each of the four edges, the portion of the peripheral conductive electronic device housing structure being formed on three of the four edges; and at least one electrical component with a frequency dependent impedance that is coupled between the portion of the peripheral conductive electronic device housing structure and the ground plane, the resonating element structure, the ground plane, and the at least one electrical component being configured so that the at least one electrical component exhibits a first impedance in a first communications band so that the conductive antenna structures and the at least one electrical component are operable in a closed slot antenna mode covering the first communications band and so that the at least one electrical component exhibits a second impedance that is higher than the first impedance in a second communications band so that the conductive antenna structures and the at least one electrical component are operable in an inverted-F antenna mode covering the second communications band, wherein the at least one electrical component comprises a resonant circuit that includes a capacitor and an inductor connected in parallel, and the resonating element structure, the ground plane, and the at least one electrical component surround and enclose an opening formed between the resonating element structure and the ground plane when operating in the closed slot antenna mode.