| 摘要 |
<p>An antenna arrangement is disclosed, suitable for use in a fixed radio access environment. A first embodiment of the invention provides a layered antenna arrangement comprising a ground plane (460) and a dielectric film layer (440) having a radiating array of radiating elements over a feed network therefor printed thereon, wherein the ground plane has depressions formed therein corresponding in position to the patch elements. The depressions have radiussed edges and preferably are filled with a dielectric substance (450) to maintain the printed circuit elements in a desired plane and to maintain continuity of the dielectric permitivity between the dielectric film and the ground plane. The depressions correspond in position to the radiating elements whereby the bandwidth is increased. The ground plane can comprise a formed plastics moulding, having a metal coating applied thereon operable to provide a conductive ground plane.</p> |
