| 摘要 |
<p>A flat plate array antenna is formed of two or more plates (4, 5, 6) with a thin conductive sheet (45, 56) interposed between each pair of plates. The plates are configured to define horns and at least one open-sided channel which is closed by the conductive sheet to form a waveguide for supplying signals to or from the antenna. The plates may each be formed of moulded plastics material having a conductive layer over at least part of the surface and formed by metallisation of the plastics moulding.</p> |
