| 摘要 |
There is disclosed a multi-band antenna device comprising an electrically conductive groundplane having at least first and second apertures formed therein. Each aperture has at least first and second opposed edges, a feed structure configured to feed an RF signal to the first and second apertures in series, and at least one electrically conductive strip extending into or across the first aperture from the first edge towards the second edge and including or providing a first tuning capacitance between the first and second edges. A first antenna having a first operating frequency is defined by a loop comprising a perimeter of the first aperture and the electrically conductive strip, and a second antenna having a second operating frequency is defined by a loop comprising a perimeter of the second aperture. |
