| 摘要 |
<p>The invention provides for antenna apparatus having antenna members (10,20,22) extending parallel to a ground plane (44), which members are L-shaped and can be provided in advantageously miniaturised form. Two such antenna members (20,22) can be provided on the same ground plane (44) so as to achieve antenna diversity and switch means (30) are provided for switching between the antenna member (20,22) in a receive mode, and for switching to only one of said antenna members (20,22) for operation of the apparatus in a transmit mode. The switch means (30) is arranged to ground a feed connector (18,36,38) of the antenna member (20,22) that is not selected for transmission or reception so as to render that antenna member (20,22) passive. <IMAGE></p> |
