| 摘要 |
<p>An antenna device has at least one antenna element (3) with two radiators (4 and 5) disposed on a retainer member (23). The retainer member may be a separate unit but may also constitute an integral part of a casing (1) for a cell or mobile telephone. In order to provide superior antenna performance and simple impedance adaptation, the radiators are connected in parallel (21) and are designed so that they have a surface extend which is shaped to conform closely with the shape of interior surfaces of the casing. In one embodiment, there is an outer radiator (7) which has a connecting portion which is located physically proximal the antenna element (3) in order thereby to realise a capacitative/inductive connection of the outer radiator (7) to the antenna element (3).</p> |
